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80C154/83C154
CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
Description
TEMIC's 80C154 and 83C154 are high performance CMOS single chip C. The 83C154 retains all the features of the 80C52 with extended ROM capacity (16 K bytes), 256 bytes of RAM, 32 I/O lines, a 6-source 2-level interrupts, a full duplex serial port, an on-chip oscillator and clock circuits, three 16 bit timers with extra features : 32 bit timer and watchdog functions. Timer 0 and 1 can be configured by program to implement a 32 bit timer. The watchdog function can be activated either with timer 0 or timer 1 or both together (32 bit timer). In addition, the 83C154 has 2 software-selectable modes of reduced activity for further reduction in power consumption. In the idle mode the CPU is frozen while the RAM is saved, and the timers, the serial port and the interrupt system continue to function. In the power down mode the RAM is saved and the timers, serial port and interrupt continue to function when driven by external clocks. In addition as for the TEMIC 80C51/80C52, the stop clock mode is also available. The 80C154 is identical to the 83C154 except that it has no on-chip ROM. TEMIC's 80C154 and 83C154 are manufactured using SCMOS process which allows them to run from 0 up to 36 MHz with Vcc = 5 V.
D D D D D D
80C154 : ROMless version of the 83C154 80C154/83C154-12 : 0 to 12 MHz 80C154/83C154-16 : 0 to 16 MHz 80C154/83C154-20 : 0 to 20 MHz 80C154/83C154-25 : 0 to 25 MHz 80C154/83C154-30 : 0 to 30 MHz
D 80C154/83C154-36 : 0 to 36 MHz D 80C154/83C154-L16 : Low power version VCC : 2.7-5.5 V Freq : 0-16 MHz
For other speed and temperature range availability please consult your sales office.
Features
D D D D D Power control modes 256 bytes of RAM 16 Kbytes of ROM (83C154) 32 Programmable I/O lines (programmable impedance) Three 16 bit timer/counters (including watchdog and 32 bit timer) D 64 K program memory space D 64 K data memory space D D D D D D Fully static design 0.8 CMOS process Boolean processor 6 interrupt sources Programmable serial port Temperature range : commercial, industrial, automotive, military
Optional
D Secret ROM : Encryption D Secret TAG : Identification number
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Interface
Figure 1. Block Diagram
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Figure 2. Pin Configuration
P1.1/T2EX P0.0/A0 P0.1/A1 P0.2/A2 P0.3/A3 P1.0/T2
P1.5 P1.6
VCC
P1.4
P1.3
P1.2
NC
P0.4/A4 P0.5/A5 P0.6/A6 P0.7/A7 EA
80C154/83C154
P1.7 RST RxD/P3.0 NC TxD/P3.1 INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3.5
80C154/83C154
NC ALE PSEN P2.7/A14 P2.6/A13 P2.5/A12
P11 /T2EX
DIL
P14 P13 P12
LCC
P10 /T2 A1/P01 A2/P02 A3/P03 A0/P 0 NC VCC
P15 P16 P17 RST RxD/P30 NC TxD/P31 INT0/P32 INT1/P33 T0/P34 T1/P35
P04 /A4 P05 /A5 P06 /A6 P07 /A7 EA
80C154/83C154
NC ALE PSEN P27 /A15 P26 /A14 P25 /A13
WR/P36
RD/P37
P23 /A11
P20 /A8
P21 /A9
P22 /A10
Flat Pack
Diagrams are for reference only. Package sizes are not to scale
P24 /A12
XTAL2
XTAL1
V SS
NC
A10/P2.3
A11/P2.4
A7/P2.0
A8/P2.1
WR/P3.6
RD/P3.7
A9/P2.2
XTAL2
XTAL1
VSS
NC
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Pin Description
Vss
Circuit Ground Potential.
Port 2
Port 2 is an 8 bit bi-directional I/O port with internal pullups. Port 2 pins that have 1's written to them are pulled high by the internal pullups, and in that state can be used as inputs. As inputs, Port 2 pins that are externally being pulled low will source current (ILL, on the data sheet) because of the internal pullups. Port 2 emits the high-order address byte during fetches from external Program Memory and during accesses to external Data Memory that use 16 bit addresses (MOVX @DPTR). In this application, it uses strong internal pullups when emitting 1's. During accesses to external Data Memory that use 8 bit addresses (MOVX @Ri), Port 2 emits the contents of the P2 Special Function Register. It also receives the high-order address bits and control signals during program verification in the 83C154. Port 2 can sink or source three LS TTL inputs. It can drive CMOS inputs without external pullups.
VCC
Supply voltage during normal, Idle, and Power Down operation.
Port 0
Port 0 is an 8 bit open drain bi-directional I/O port. Port 0 pins that have 1's written to them float, and in that state can be used as high-impedance inputs. Port 0 is also the multiplexed low-order address and data bus during accesses to external Program and Data Memory. In this application it uses strong internal pullups when emitting 1's. Port 0 also outputs the code bytes during program verification in the 83C154. External pullups are required during program verification. Port 0 can sink eight LS TTL inputs.
Port 3
Port 3 is an 8 bit bi-directional I/O port with internal pullups. Port 3 pins that have 1's written to them are pulled high by the internal pullups, and in that state can be used as inputs. As inputs, Port 3 pins that are externally being pulled low will source current (ILL, on the data sheet) because of the pullups. It also serves the functions of various special features of the TEMIC 51 Family, as listed below.
Port Pin
P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6 P3.7
Port 1
Port 1 is an 8 bit bi-directional I/O port with internal pullups. Port 1 pins that have 1's written to them are pulled high by the internal pullups, and in that state can be used as inputs. As inputs, Port 1 pins that are externally being pulled low will source current (IIL, on the data sheet) because of the internal pullups. Port 1 also receives the low-order address byte during program verification. In the 83C154, Port 1 can sink or source three LS TTL inputs. It can drive CMOS inputs without external pullups. 2 inputs of PORT 1 are also used for timer/counter 2 : P1.0 [T2] : External clock input for timer/counter 2. P1.1 [T2EX] : A trigger input for timer/counter 2, to be reloaded or captured causing the timer/counter 2 interrupt.
Alternate Function
RXD (serial input port) TXD (serial output port) INT0 (external interrupt 0) INT1 (external interrupt 1) TD (Timer 0 external input) T1 (Timer 1 external input) WR (external Data Memory write strobe) RD (external Data Memory read strobe)
Port 3 can sink or source three LS TTL inputs. It can drive CMOS inputs without external pullups.
RST
A high level on this for two machine cycles while the oscillator is running resets the device. An internal pull-down resistor permits Power-On reset using only a capacitor connected to VCC. As soon as the result is applied (Vin), PORT 1, 2 and 3 are tied to 1. This operation is achieved asynchronously even if the oscillator is not start up.
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ALE
Address Latch Enable output for latching the low byte of the address during accesses to external memory. ALE is activated as though for this purpose at a constant rate of 1/6 the oscillator frequency except during an external data memory access at which time one ALE pulse is skipped. ALE can sink or source 8 LS TTL inputs. It can drive CMOS inputs without an external pullup.
XTAL1
Input to the inverting amplifier that forms the oscillator. Receives the external oscillator signal when an external oscillator is used.
XTAL2
Output of the inverting amplifier that forms the oscillator, and input to the internal clock generator. This pin should be floated when an external oscillator is used.
PSEN
Program Store Enable output is the read strobe to external Program Memory. PSEN is activated twice each machine cycle during fetches from external Program Memory. (However, when executing out of external Program Memory, two activations of PSEN are skipped during each access to external Data Memory). PSEN is not activated during fetches from internal Program Memory. PSEN can sink/source 8 LS TTL inputs. It can drive CMOS inputs without an external pullup.
EA
When EA is held high, the CPU executed out of internal Program Memory (unless the Program Counter exceeds 3FFFH). When EA is held low, the CPU executes only out of external Program Memory. EA must not be floated.
Idle and Power Down Operation
Figure 3 shows the internal Idle and Power Down clock configuration. As illustrated, Power Down operation stops the oscillator. The interrupt, serial port, and timer blocks continue to function only with external clock (INT0, INT1, T0, T1). Figure 3. Idle and Power Down Hardware. Idle Mode operation allows the interrupt, serial port, and timer blocks to continue to function with internal or external clocks, while the clock to CPU is gated off. The special modes are activated by software via the Special Function Register, PCON. Its hardware address is 87H. PCON is not bit addressable.
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PCON : Power Control Register
(MSB) SMOD HPD RPD - GF1 GF0 PD (LSB) IDL
Symbol
SMOD
Position
PCON.7
Name and Function
Double Baud rate bit. When set to a 1, the baud rate is doubled when the serial port is being used in either modes 1, 2 or 3. Hard power Down bit. Setting this bit allows CPU to enter in Power Down state on an external event (1 to 0 transition) on bit T1 (p. 3.5) the CPU quit the Hard Power Down mode when bit T1 p. 3.5) goes high or when reset is activated. Recover from Idle or Power Down bit. When 0 RPD has no effetc. When 1, RPD permits to exit from idle or Power Down with any non enabled interrupt source (except time 2). In this case the program start at the next address. When interrupt is enabled, the appropriate interrupt routine is serviced. General-purpose flag bit. General-purpose flag bit. Power Down bit. Setting this bit activates power down operation. Idle mode bit. Setting this bit activates idle mode operation.
The flag bits GF0 and GF1 may be used to determine whether the interrupt was received during normal execution or during the Idle mode. For example, the instruction that writes to PCON.0 can also set or clear one or both flag bits. When Idle mode is terminated by an enabled interrupt, the service routine can examine the status of the flag bits. The second way of terminating the Idle mode is with a hardware reset. Since the oscillator is still running, the hardware reset needs to be active for only 2 machine cycles (24 oscillator periods) to complete the reset operation. The third way to terminate the Idle mode is the activation of any disabled interrupt when recover is programmed (RPD = 1). This will cause PCON.0 to be cleared. No interrupt is serviced. The next instruction is executed. If interrupt are disabled and RPD = 0, only a reset can cancel the Idle mode.
HPD
PCON.6
RPD
PCON.5
Power Down Mode
The instruction that sets PCON.1 is the last executed prior to entering power down. Once in power down, the oscillator is stopped. The contents of the onchip RAM and the Special Function Register is saved during power down mode. The three ways to terminate the Power Down mode are the same than the Idle mode. But since the onchip oscillator is stopped, the external interrupts, timers and serial port must be sourced by external clocks only, via INT0, INT1, T0, T1. In the Power Down mode, VCC may be lowered to minimize circuit power consumption. Care must be taken to ensure the voltage is not reduced until the power down mode is entered, and that the voltage is restored before the hardware reset is applied which frees the oscillator. Reset should not be released until the oscillator has restarted and stabilized. When using voltage reduction : interrupt, timers and serial port functions are guaranteed in the VCC specification limits. Table 1 describes the status of the external pins while in the power down mode. It should be noted that if the power down mode is activated while in external program memory, the port data that is held in the Special Function Register P2 is restored to Port 2. If the port switches from 0 to 1, the port pin is held high during the power down mode by the strong pullup, T1, shown in figure 4.
GF1 GF0 PD IDL
PCON.3 PCON.2 PCON.1 PCON.0
If 1's are written to PD and IDL at the same time. PD takes, precedence. The reset value of PCON is (000X0000).
Idle Mode
The instruction that sets PCON.0 is the last instruction executed before the Idle mode is activated. Once in the Idle mode the CPU status is preserved in its entirety : the Stack Pointer, Program Counter, Program Status Word, Accumulator, RAM and all other registers maintain their data during idle. In the idle mode, the internal clock signal is gated off to the CPU, but interrupt, timer and serial port functions are maintained. Table 1 describes the status of the external pins during Idle mode. There are three ways to terminate the Idle mode. Activation of any enabled interrupt will cause PCON.0 to be cleared by hardware, terminating Idle mode. The interrupt is serviced, and following RETI, the next instruction to be executed will be the one following the instruction that wrote 1 to PCON.0.
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Table 1. Status of the external pins during idle and power down modes.
MODE
Idle Idle Power Down Power Down
PROGRAM MEMORY
Internal External Internal External
ALE
1 1 0 0
PSEN
1 1 0 0
PORT0
Port Data Floating Port Data Floating
PORT1
Port Data Port Data Port Data Port Data
PORT2
Port Data Address Port Data Port Data
PORT3
Port Data Port Data Port Data Port Data
Figure 4. I/O Buffers in the 83C154 (Ports 1, 2, 3).
Stop Clock Mode
Due to static design, the TEMIC 83C154 clock speed can be reduced until 0 MHz without any data loss in memory or registers. This mode allows step by step utilization, and permits to reduce system power consumption by bringing the clock frequency down to any value. At 0 MHz, the power consumption is the same as in the Power Down Mode.
maximum sink current is specified as ITL under the D.C. Specifications. When the input goes below approximately 2 V, T3 turns off to save ICC current. Note, when returning to a logical 1, T2 is the only internal pullup that is on. This will result in a slow rise time if the user's circuit does not force the input line high. The input impedance of Port 1, 2, 2 are programmable through the register IOCON. The ALF bit (IOCON0) set all of the Port 1, 2, 3 floating when a Power Down mode occurs. The P1HZ, P2HZ, P3HZ bits (IOCON1, IOCON2, IOCON3) set respectively the Ports P1, P2, P3 in floating state. The IZC (IOCON4) allows to choose input impedance of all ports (P1, P2, P3). When IZC = 0, T2 and T3 pullup of I/O ports are active ; the internal input impedance is approximately 10 K. When IZC = 1 only T2 pull-up is active. The T3 pull-up is turned off by IZC. The internal impedance is approximately 100 K.
Oscillator Characteristics
XTAL1 and XTAL2 are the input and output respectively, of an inverting amplifier which is configured for use as an on-chip oscillator, as shown in figure 5. Either a quartz crystal or ceramic resonator may be used. Figure 5. Crystal Oscillator.
I/O Ports
The I/O drives for P1, P2, P3 of the 83C154 are impedance programmable. The I/O buffers for Ports 1, 2 and 3 are implemented as shown in figure 4. When the port latch contains 0, all pFETS in figure 4 are off while the nFET is turned on. When the port latch makes a 0-to-1 transition, the nFET turns off. The strong pullup pFET, T1, turns on for two oscillator periods, pulling the output high very rapidly. As the output line is drawn high, pFET T3 turns on through the inverter to supply the IOH source current. This inverter and T3 form a latch which holds the 1 and is supported by T2. When Port 2 is used as an address port, for access to external program of data memory, any address bit that contains a 1 will have his strong pullup turned on for the entire duration of the external memory access. When an I/O pin on Ports 1, 2, or 3 is used as an input, the user should be aware that the external circuit must sink current during the logical 1-to-0 transition. The
To drive the device from an external clock source, XTAL1 should be driven while XTAL2 is left unconnected as shown in figure 6. There are no requirements on the duty cycle of the external clock signal, since the input to the internal clocking circuitry is through a divide-by-two flip-flop, but minimum and maximum high and low times specified on the Data Sheet must be observed.
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Figure 6. External Drive Configuration.
Hardware Description
Same as for the 80C51, plus a third timer/counter : EXEN2 = 0, then when Timer 2 rolls over it does not only set TF2 but also causes the Timer 2 register to be reloaded with the 16 bit value in registers RCAP2L and RCAP2H, which are preset by software. If EXEN2 = 1, then Timer 2 still does the above, but with the added feature that a 1-to-0 transition at external input T2EX will also trigger the 16 bit reload and set EXF2. The auto-reload mode is illustrated in Figure 8. Figure 7. Timer 2 in Capture Mode. Table 2.Timer 2 Operating Modes.
RCLK + TCLK
0 0 1 X
Timer/Event Counter 2
Timer 2 is a 16 bit timer/counter like Timers 0 and 1, it can operate either as a timer or as an event counter. This is selected by bit C/T2 in the Special Function Register T2CON (Figure 1). It has three operating modes : "capture", "autoload" and "baud rate generator", which are selected by bits in T2CON as shown in Table 2.
CP/RL2
0 1 X X
TR2
1 1 1 0
MODE
16 bit auto-reload 16 bit capture baud rate generator (off)
In the capture mode there are two options which are selected by bit EXEN2 in T2CON; If EXEN2 = 0, then Timer 2 is a 16 bit timer or counter which upon overflowing sets bit TF2, the Timer 2 overflow bit, which can be used to generate an interrupt. If EXEN2 = 1, then Timer 2 still does the above, but with the added feature that a 1-to-0 transition at external input T2EX causes the current value in the Timer 2 registers, TL2 and TH2, to be captured into registers RCAP2L and RCAP2H, respectively. In addition, the transition at T2EX causes bit EXF2 in T2CON to be set, and EXF2, like TF2, can generate an interrupt. The capture mode is illustrated in Figure 7. In the auto-reload mode there are again two options, which are selected by bit EXEN2 in T2CON.If
Figure 8. Timer 2 in Auto-Reload Mode.
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(MSB) TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2 (LSB) CP/RL2
The baud rate generator mode is selected by : RCLK = 1 and/or TCLK = 1.
Symbol
TF2 EXF2
Position
T2CON.7 T2CON.6
Name and Significance
Timer 2 overflow flag set by a Timer 2 overflow and must be cleared by software. TF2 will not be set when either RCLK = 1 OR TCLK = 1. Timer 2 external flag set when either a capture or reload is caused by a negative transition on T2EX and EXEN2 = 1. When Timer 2 interrupt is enabled, EXF2 = 1 will cause the CPU to vector to the Timer 2 interrupt routine. EXF2 must be cleared by software. Receive clock flag. When set, causes the serial port to use Timer2 overflow pulses for its receive clock in modes 1 and 3. RCLK = 0 causes Timer 1 overflow to be used for the receive clock. Transmit clock flag. When set, causes the serial port to use Timer 2 overflow pulses for its transmit clock in modes 1 and 3. TCLK = 0 causes Timer 1 overflows to be used for the transmit clock. Timer 2 external enable flag. When set, allows capture or reload to occur as a result of a negative transition on T2EX if Timer 2 is not being used to clock the serial port. EXEN2 = 0 causes Timer 2 to ignore events at T2EX. Start/stop control for Timer 2. A logic 1 starts the timer. Timer or counter select. (Timer 2) 0 = Internal timer (OSC/12) 1 = External event counter (falling edge triggered). Capture/Reload flag. When set, captures will occur on negative transitions at T2EX if EXEN 2 = 1. When cleared, auto reloads will occur either with Timer 2 overflows or negative transition at T2EX when EXEN2 = 1. When either RCLK = 1 or TCLK = 1, this bit is ignored and the timer is forced to auto-reload on Timer 2 overflow.
RCLK
T2CON.5
TCLK
T2CON.4
EXEN2
T2CON.3
TR2 C/T2 CP/RL2
T2CON.2 T2CON.1 T2CON.0
Timer Functions
In fact, timer 0 & 1 can be connected by a software instruction to implement a 32 bit timer function. Timer 0 (mode 3) or timer 1 (mode 0, 1, 2) or a 32 bit timer consisting of timer 0 + timer 1 can be employed in the watchdog mode, in which case a CPU reset is generated upon a TF1 flag. The internal pull-up resistances at ports 1~3 can be set to a ten times increased value simply by software.
Figure 9. Watchdog timer
32 Bit Mode and Watching Mode
The 83C154 has two supplementary modes. They are accessed by bits WDT and T32 of register IOCON. Figure 10 showns how IOCON must be programmed in order to have access to these functions
32 bit timer [IOCON bit 6 (T32) = 1]
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(MSB) WDT T32 SERR IZC P3HZ P2HZ P1HZ ALF (LSB)
Symbol
T32 WDT
Position
IOCON.6 IOCON.7 - - -
Name and Significance
If T32 = 1 and if C/T0 = 0, T1 and T0 are programmed as a 32 bit TIMER. If T32 = 1 and if C/T0 = 1, T1 and T0 are programmed as a 32 bit COUNTER. If WDT = 1 and according to the mode selected by TMOD, an 8 bit or 32 bit WATCHDOG is configured from TIMERS 0 and 1.
32 Bit Mode
D T32 = 1 enables access to this mode. As shown in figure 11, this 32 bit mode consists in cascading TIMER 0 for the LSBs and TIMER 1 for the MSBs Figure 10.32 Bit Timer/counter.
T32 = 1 starts the timer/counter and T32 = 0 stops it. It should be noted that as soon as T32 = 0. TIMERs 0 and 1 assume the configuration specified by register TMOD. Moreover, if TR0 = 1 or if TR1 = 1, the content of the
TIMERs evolves. Consequently, in 32 bit mode, if the TIMER/COUNTER muste be stopped (T32 = 0), TR0 and TR1 must be set to 0.
32 Bit Timer
D Figure 12 illustrates the 32 bit TIMER mode. Figure 11. 32 Bit Timer Configuration.
D In this mode, T32 = 1 and C/T0 = 0, the 32 bit timer is incremented on each S3P1 state of each machine cycle. An overflow of TIMER 0 (TF0 has not been set to 1) increments TIMER 1 and the overflow of the 32 bit TIMER is signalled by setting TF1 (S5P1) to 1.
D The following formula should be used to calculate the required frequency : f+ OSC 65536 (T0, T1)
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32 Bit Counter
Figure 13 illustrates the 32 bit COUNTER mode. Figure 12. 32 Bit Counter Configuration.
D In this mode, T32 = 0 and C/T0 = 1. Before it can make an increment, the 83C154 must detect two transitions on its T0 input. As shown in figure 14, Figure 13. Counter Incrementation Condition.
input T0 is sampled on each S5P2 state of every machine cycle or, in other words, every OSC / 12.
D The counter will only evolve if a level 1 is detected during state S5P2 of cycle Ci and if a level 0 is detected during state S5P2 of cycle Ci + n. D Consequently, the minimal period of signal fEXT admissible by the counter must be greater than or equal to two machine cycles. The following formula should be used to calculate the operating frequency. f+ fEXT 65536 (T0, T1)
Figure 14. The Different Watchdog Configurations.
fEXT t OSC 24
Watchdog Mode
D WDT = 1 enables access to this mode. As shown in figure 15, all the modes of TIMERS 0 and 1, of which the overflows act on TF1 (TF1 = 1), activate the WATCHDOG Mode.
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D If C/T = 0, the WATCHDOG is a TIMER that is incremented every machine cycle. If C/T = 1, the WATCHDOG is a counter that is incremented by an external signal of which the frequency cannot exceed OSC / 24. D The overflow of the TIMER/COUNTER is signalled by raising flag TF1 to 1. The reset of the 83C154 is executed during the next machine cycle and lasts for the next 5 machine cycles. The results of this reset are identical to those of a hardware reset. The internal RAM is not affected and the special register assume the values shown in Table 3. Table 3. Content of the SFRS after a reset triggered by the watchdog.
REGISTER PC ACC B PSW SP DPTR P0-P3 IP IE TMOD TCON T2CON TH0 TL0 TH1 TL1 TH2 TL2 RCAP2H RCAP2L SCON SBUF IOCON PCON CONTENT 000H 00H 00H 00H 07H 0000H 0FFH 0X000000B 0X000000B 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H Indeterminate 00H 000X0000B
D As there are no precautions for protecting bit WDT from spurious writing in the IOCON register, special care must be taken when writing the program. In particular, the user should use the IOCON register bit handling instructions : - SETB and CLR x in preference to the byte handling instructions : - MOV IOCON, # XXH, ORL IOCON, #XXH, - ANL IOCON, #XXH
External Counting in Power-down Mode (PD = PCON.1 = 1)
D In the power-down mode, the oscillator is turned off and the 83C154's activity is frozen. However, if an external clock is connected to one of the two inputs, T1/T0, TIMER/COUNTERS 0 and 1 can continue to operate. In this case, counting becomes asychronous and the maximum, admissible frequency of the signal is OSC : 24. D The overflow of either counter TF0 or TF1 causes an interrupt to be serviced or forces a reset if the counter is in the WATCHDOG MODE (T32 = ICON.7 = 1).
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83C154 with Secret ROM
TEMIC offers 83C154 with the encrypted secret ROM option to secure the ROM code contained in the 83C154 microcontrollers. The clear reading of the program contained in the ROM is made impossible due to an encryption through several random keys implemented during the manufacturing process. The keys used to do such encryption are selected randomwise and are definitely different from one microcontroller to another. This encryption is activated during the following phases : - Everytime a byte is addressed during a verify of the ROM content, a byte of the encryption array is selected. - MOVC instructions executed from external program memory are disabled when fetching code bytes from internal memory. - EA is sampled and latched on reset, thus all state modification are disabled. For further information please refer to the application note (ANM053) available upon request.
83C154 with Secret TAG
TEMIC offers special 64-bit identifier called "SECRET TAG" on the microcontroller chip. The Secret Tag option is available on both ROMless and masked microcontrollers. The Secret Tag feature allows serialization of each microcontroller for identification of a specific equipment. A unique number per device is implemented in the chip during manufacturing process. The serial number is a 64-bit binary value which is contained and addressable in the Special Function Registers (SFR) area. This Secret Tag option can be read-out by a software routine and thus enables the user to do an individual identity check per device. This routine is implemented inside the microcontroller ROM memory in case of masked version which can be kept secret (and then the value of the Secret Tag also) by using a ROM Encryption. For further information, please refer to the application note (ANM031) available upon request.
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Electrical Characteristics
Absolute Maximum Ratings*
Ambiant Temperature Under Bias : C = commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to +70C I = industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40C to +85C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . -65C to + 150C Voltage on VCC to VSS . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to + 7 V Voltage on Any Pin to VSS . . . . . . . . . . . . . . . -0.5 V to VCC + 0.5 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W** ** This value is based on the maximum allowable die temperature and the thermal resistance of the package
* Notice
Stresses at or above those listed under " Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions may affect device reliability.
DC Parameters
TA = 0C to 70C ; Vcc = 0 V ; Vcc = 5 V 10 % ; F = 0 to 36 MHz TA = -40C + 85C ; Vcc = 0 V ; Vcc = 5 V 10 % ; F = 0 to 36 MHz
SYMBOL
VIL VIH VIH1 VOL
PARAMETER
Input Low Voltage Input High Voltage (Except XTAL and RST) Input High Voltage (for XTAL and RST) Output Low Voltage (Port 1, 2 and 3)
MIN
- 0.5 0.2 Vcc + 1.4 0.7 Vcc
MAX
0.2 Vcc - 0.1 Vcc + 0.5 Vcc + 0.5 0.3 0.45 1.0 0.3 0.45 1.0
UNIT
V V V V V V V V V V V V V V V
TEST CONDITIONS
IOL = 100 A IOL = 1.6 mA (note 2) IOL = 3.5 mA IOL = 200 A IOL = 3.2 mA (note 2) IOL = 7.0 mA IOH = - 10 A IOH = - 30 A IOH = - 60 A VCC = 5 V 10 % IOH = - 200 A IOH = - 3.2 mA IOH = - 7.0 mA VCC = 5 V 10 % Vin = 0.45 V 0.45 < Vin < Vcc Vin = 2.0 V Vcc = 2.0 V to 5.5 V (note 1)
VOL1
Output Low Voltage (Port 0, ALE, PSEN)
VOH
Output High Voltage Port 1, 2 and 3
Vcc - 0.3 Vcc - 0.7 Vcc - 1.5
VOH1
Output High Voltage (Port 0, ALE, PSEN)
Vcc - 0.3 Vcc - 0.7 Vcc - 1.5
IIL ILI ITL IPD RRST CIO ICC
Logical 0 Input Current (Ports 1, 2 and 3) Input leakage Current Logical 1 to 0 Transition Current (Ports 1, 2 and 3) Power Down Current RST Pulldown Resistor Capacitance of I/O Buffer Power Supply Current Freq = 1 MHz Icc op Icc idle Freq = 6 MHz Icc op Icc idle Freq 12 MHz Icc op = 1.3 Freq (MHz) + 4.5 mA Icc idle = 0.36 Freq (MHz) + 2.7 mA 50
- 50 +/- 10 - 650 50 200 10 1.8 1 10 4
A A A A KOhm pF mA mA mA mA
fc = 1 MHz, Ta = 25_C Vcc = 5.5 V
14
MATRA MHS Rev.F (14 Jan. 97)
80C154/83C154
Absolute Maximum Ratings*
Ambient Temperature Under Bias : A = Automotive . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40C to +125C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . -65C to + 150C Voltage on VCC to VSS . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to + 7 V Voltage on Any Pin to VSS . . . . . . . . . . . . . . . -0.5 V to VCC + 0.5 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W ** This value is based on the maximum allowable die temperature and the thermal resistance of the package
* Notice
Stresses at or above those listed under " Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions may affect device reliability.
DC Parameters
TA = -40C + 125C ; Vss = 0 V ; Vcc = 5 V 10 % ; F = 0 to 36 MHz
SYMBOL
VIL VIH VIH1 VOL
PARAMETER
Input Low Voltage Input High Voltage (Except XTAL and RST) Input High Voltage (for XTAL and RST) Output Low Voltage (Port 1, 2 and 3)
MIN
- 0.5 0.2 Vcc + 1.4 0.7 Vcc
MAX
0.2 Vcc - 0.1 Vcc + 0.5 Vcc + 0.5 0.3 0.45 1.0 0.3 0.45 1.0
UNIT
V V V V
TEST CONDITIONS
IOL = 100 A IOL = 1.6 mA (note 2) IOL = 3.5 mA IOL = 200 A IOL = 3.2 mA (note 2) IOL = 7.0 mA IOH = - 10 A IOH = - 30 A IOH = - 60 A VCC = 5 V 10 % IOH = - 200 A IOH = - 3.2 mA IOH = - 7.0 mA VCC = 5 V 10 % Vin = 0.45 V 0.45 < Vin < Vcc Vin = 2.0 V Vcc = 2.0 V to 5.5 V (note 1)
VOL1
Output Low Voltage (Port 0, ALE, PSEN)
V
VOH
Output High Voltage Port 1, 2 and 3
Vcc - 0.3 Vcc - 0.7 Vcc - 1.5
V V V V V V - 50 10 - 750 75 A A A A KOhm pF mA mA mA mA
VOH1
Output High Voltage (Port 0, ALE, PSEN)
Vcc - 0.3 Vcc - 0.7 Vcc - 1.5
IIL ILI ITL IPD RRST CIO ICC
Logical 0 Input Current (Ports 1, 2 and 3) Input leakage Current Logical 1 to 0 Transition Current (Ports 1, 2 and 3) Power Down Current RST Pulldown Resistor Capacitance of I/O Buffer Power Supply Current Freq = 1 MHz Icc op Icc idle Freq = 6 MHz Icc op Icc idle Freq 12 MHz Icc op = 1.3 Freq (MHz) + 4.5 mA Icc idle = 0.36 Freq (MHz) + 2.7 mA 50
200 10 1.8 1 10 4
fc = 1 MHz, Ta = 25_C Vcc = 5.5 V
MATRA MHS Rev.F (14 Jan. 97)
15
80C154/83C154
Absolute Maximum Ratings*
Ambient Temperature Under Bias : M = Military . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to +125C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . -65C to + 150C Voltage on VCC to VSS . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to + 7 V Voltage on Any Pin to VSS . . . . . . . . . . . . . . . -0.5 V to VCC + 0.5 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W ** This value is based on the maximum allowable die temperature and the thermal resistance of the package
* Notice
Stresses at or above those listed under " Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions may affect device reliability.
DC Parameters
TA = -55C + 125C ; Vss = 0 V ; Vcc = 5 V 10 % ; F = 0 to 36 MHz
SYMBOL
VIL VIH VIH1 VOL VOL1 VOH
PARAMETER
Input Low Voltage Input High Voltage (Except XTAL and RST) Input High Voltage (for XTAL and RST) Output Low Voltage (Port 1, 2 and 3) Output Low Voltage (Port 0, ALE, PSEN) Output High Voltage (Port 1, 2, 3)
MIN
- 0.5 0.2 Vcc + 1.4 0.7 Vcc
MAX
0.2 Vcc - 0.1 Vcc + 0.5 Vcc + 0.5 0.45 0.45
UNIT
V V V V V V V V V V V
TEST CONDITIONS
IOL = 1.6 mA (note 2) IOL = 3.2 mA (note 2) IOH = - 60 A Vcc = 5 V 10 % IOH = - 25 A IOH = - 10 A IOH = - 400 A Vcc = 5 V 10 % IOH = - 150 A IOH = - 40 A Vin = 0.45 V 0.45 < Vin < Vcc Vin = 2.0 V Vcc = 2.0 V to 5.5 V (note 1)
2.4 0.75 Vcc 0.9 Vcc
VOH1
Output High Voltage (Port 0 in External Bus Mode, ALE, PEN)
2.4 0.75 Vcc 0.9 Vcc
IIL ILI ITL IPD RRST CIO ICC
Logical 0 Input Current (Ports 1, 2 and 3) Input leakage Current Logical 1 to 0 Transition Current (Ports 1, 2 and 3) Power Down Current RST Pulldown Resistor Capacitance of I/O Buffer Power Supply Current Freq = 1 MHz Icc op Icc idle Freq = 6 MHz Icc op Icc idle Freq 12 MHz Icc op = 1.3 Freq (MHz) + 4.5 mA Icc idle = 0.36 Freq (MHz) + 2.7 mA 50
- 75 10 - 750 75 200 10 1.8 1 10 4
A A A A KOh m pF mA mA mA mA
fc = 1 MHz, Ta = 25_C Vcc = 5.5 V
16
MATRA MHS Rev.F (14 Jan. 97)
80C154/83C154
Absolute Maximum Ratings*
Ambient Temperature Under Bias : C = Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to +70C I = Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40C to 85C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . -65C to + 150C Voltage on VCC to VSS . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to + 7 V Voltage on Any Pin to VSS . . . . . . . . . . . . . . . -0.5 V to VCC + 0.5 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W ** This value is based on the maximum allowable die temperature and the thermal resistance of the package
* Notice
Stresses at or above those listed under " Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions may affect device reliability.
DC Parameters
TA = 0C to 70C ; Vcc = 2.7 V to 5.5 V ; Vss = 0 V ; F = 0 to 16 MHz TA = -40C to 85C ; Vcc = 2.7 V to 5.5 V
SYMBOL
VIL VIH VIH1 VIH2 VPD VOL VOL1 VOH VOH1 IIL ILI ITL IPD RRST CIO
PARAMETER
Input Low Voltage Input High Voltage (Except XTAL and RST) Input High Voltage to XTAL1 Input High Voltage to RST for Reset Power Down Voltage to Vcc in PD Mode Output Low Voltage (Ports 1, 2, 3) Output Low Voltage Port 0, ALE, PSEN Output High Voltage Ports 1, 2, 3 Output High Voltage (Port 0 in External Bus Mode), ALE, PSEN Logical 0 Input Current Ports 1, 2, 3 Input Leakage Current Logical 1 to 0 Transition Current (Ports 1, 2, 3) Power Down Current RST Pulldown Resistor Capacitance of I/O Buffer
MIN
- 0.5 0.2 VCC + 1.4 V 0.7 VCC 0.7 VCC 2.0
MAX
0.2 VCC - 0.1 VCC + 0.5 VCC + 0.5 VCC + 0.5 6.0 0.45 0.45
UNIT
V V V V V V V V V
TEST CONDITIONS
IOL = 0.8 mA (note 2) IOL = 1.6 mA (note 2) IOH = - 10 A IOH = - 40 A Vin = 0.45 V 0.45 < Vin < VCC Vin = 2.0 V VCC = 2 V to 5.5 V (note 1)
0.9 Vcc 0.9 Vcc - 50 10 - 650 50 50 200 10
A A A A k pF
fc = 1 MHz, TA = 25_C
Maximum Icc (mA)
OPERATING (NOTE 1)
FREQUENCY/Vcc 1 MHz 6 MHz 12 MHz 16 MHz Freq > 12 MHz (Vcc = 5.5 V) 2.7 V 0.8 mA 4 mA 8 mA 10 mA 3V 1 mA 5 mA 10 mA 12 mA 3.3 V 1.1 mA 6 mA 12 mA 14 mA 5.5 V 1.8 mA 10 mA 2.7 V 400 A 1.5 mA 2.5 mA 3 mA
IDLE (NOTE 1)
3V 500 A 1.7 mA 3 mA 3.8 mA 3.3 V 600 A 2 mA 3.5 mA 4.5 mA 5.5 V 1 mA 4 mA
Icc (mA) = 1.3 x Freq (MHz) + 4.5 Icc Idle (mA) = 0.36 x Freq (MHz) + 2.7
MATRA MHS Rev.F (14 Jan. 97)
17
80C154/83C154
Note 1 : ICC is measured with all output pins disconnected ; XTAL1 driven with TCLCH, TCHCL = 5 ns, VIL = VSS + .5 V, VIH = VCC -.5 V ; XTAL2 N.C. ; EA = RST = Port 0 = VCC. ICC would be slighty higher if a crystal oscillator used. Idle ICC is measured with all otput pins disconnected ; XTAL1 driven with TCLCH, TCHCL = 5 ns, VIL = VSS + 5 V, VIH = VCC -.5 V ; XTAL2 N.C ; Port 0 = VCC ; EA = RST = VSS. Power Down ICC is measured with all output pins disconnected ; EA = PORT 0 = VCC ; XTAL2 N.C. ; RST = VSS. Note 2 : Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be superimposed on the VOLS of ALE and Ports 1 and 3. The noise is due to external bus capacitance discharging into the Port 0 and Port 2 pins when these pins make 1 to 0 transitions during bus operations. In the worst cases (capacitive loading 100 pF), the noise pulse on the ALE line may exceed 0.45 V may exceed 0,45 V with maxi VOL peak 0.6 V A Schmitt Trigger use is not necessary. Figure 16. ICC Test Condition, Active Mode. All other pins are disconnected. Figure 15. ICC Test Condition, Idle Mode. All other pins are disconnected.
Figure 17. ICC Test Condition, Power Down Mode. All other pins are disconnected.
Figure 18. Clock Signal Waveform for ICC Tests in Active and Idle Modes. TCLCH = TCHCL = 5 ns.
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MATRA MHS Rev.F (14 Jan. 97)
80C154/83C154
Explanation of the AC Symbol
Each timing symbol has 5 characters. The first character is always a "T" (stands for time). The other characters, depending on their positions, stand for the name of a signal or the logical status of that signal. The following is a list of all the characters and what they stand for.
A : Address. C : Clock. D : Input data. H : Logic level HIGH I : Instruction (program memory contents). L : Logic level LOW, or ALE. P : PSEN.
Example : TAVLL = Time for Address Valid to ALE low. TLLPL = Time for ALE low to PSEN low.
Q : Output data. R : READ signal. T : Time. V : Valid. W : WRITE signal. X : No longer a valid logic level. Z : Float.
AC Parameters
TA = 0 to + 70C ; Vss = 0 V ; Vcc = 5 V 10 % ; F = 0 to 36 MHz TA = -55 + 125C ; Vss = 0 V ; 2.7 V < Vcc < 5.5 V ; F = 0 to 16 MHz TA = -55 + 125C ; Vss = 0 V ; Vcc = 5 V 10 % ; F = 0 to 36 MHz
(Load Capacitance for PORT 0, ALE and PSEN = 100 pF ; Load Capacitance for all other outputs = 80 pF)
External Program Memory Characteristics
16 MHz SYMBOL
TLHLL TAVLL TLLAX TLLIV TLLPL TPLPH TPLIV TPXIX TPXIZ TPXAV TAVIV TPLAZ
20 MHz
25 MHz
30 MHz
36 MHz
PARAMETER
ALE Pulse Width Address valid to ALE Address Hold After ALE ALE to valid instr in ALE to PSEN PSEN pulse Width PSEN to valid instr in Input instr Hold After PSEN Input instr Float After PSEN PSEN to Address Valid Address to Valid instr in PSEN low to Address Float
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
110 40 35 185 45 165 125 0 50 55 230 10 50 210 10 0 45 40 170 8 40 130 110 0 35 35 130 6 90 30 35 170 30 100 85 0 30 30 90 5 70 20 35 130 25 80 65 0 25 60 15 35 100 20 75 50 50 10 35 80
External Program Memory Read Cycle
TAVIV
MATRA MHS Rev.F (14 Jan. 97)
19
80C154/83C154
External Data Memory Characteristics
16 MHz SYMBOL
TRLRH TWLWH TLLAX TRLDV TRHDX TRHDZ TLLDV TAVDV TLLWL TAVWL TQVWX TQVWH TWHQX TRLAZ TWHLH
20 MHz
25 MHz
30 MHz
36 MHz
PARAMETER
RD pulse Width WR pulse Width Address Hold After ALE RD to Valid in Data hold after RD Data float after RD ALE to Valid Data In Address to Valid Data IN ALE to WR or RD Address to WR or RD Data valid to WR transition Data Setup to WR transition Data Hold after WR RD low to Address Float RD or WR high to ALE high
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
340 340 85 240 0 90 435 480 150 180 35 380 40 0 35 90 35 250 135 180 35 325 35 0 60 25 0 90 370 400 170 120 140 30 250 30 0 45 20 270 270 85 210 0 80 350 300 130 90 115 20 215 20 0 40 20 210 210 70 175 0 70 235 260 115 70 75 15 170 15 0 40 180 180 55 135 0 50 170 190 100 120 120 35 110
External Data Memory Write Cycle
TAVWL
TQVWX
External Data Memory Read Cycle
20
MATRA MHS Rev.F (14 Jan. 97)
80C154/83C154
Serial Port Timing - Shift Register Mode
16 MHz SYMBOL
TXLXL TQVXH TXHQX TXHDX TXHDV
20 MHz
25 MHz
30 MHz
36 MHz
PARAMETER
Serial Port Clock Cycle Time Output Data Setup to Clock Rising Edge Output Data Hold after Clock Rising Edge Input Data Hold after Clock Rising Edge Clock Rising Edge to Input Data Valid
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
750 563 63 0 563 600 480 90 0 450 480 380 65 0 350 400 300 50 0 300 330 220 45 0 250
Shift Register Timing Waveforms
MATRA MHS Rev.F (14 Jan. 97)
21
80C154/83C154
External Clock Drive Characteristics (XTAL1)
SYMBOL
FCLCL TCLCL TCHCX TCLCX TCLCH TCHCL
PARAMETER
Oscillator Frequency Oscillator period High Time Low Time Rise Time Fall Time
MIN
MAX
36
UNIT
MHz ns ns ns
27.8 5 5 5 5
ns ns
External Clock Drive Waveforms
AC Testing Input/Output Waveforms
AC inputs during testing are driven at Vcc - 0.5 for a logic "1" and 0.45 V for a logic "0". Timing measurements are made at VIH min for a logic "1" and VIL max for a logic "0".
Float Waveforms
For timing purposes as port pin is no longer floating when a 100 mV change from load voltage occurs and begins to float when a 100 mV change from the loaded VOH/VOL level occurs. Iol/IoH 20 mA.
22
MATRA MHS Rev.F (14 Jan. 97)
80C154/83C154
Clock Waveforms
This diagram indicates when signals are clocked internally. The time it takes the signals to propagate to the pins, however, ranges from 25 to 125 ns. This propagation delay is dependent on variables such as temperature and pin loading. Propagation also varies from output to output and component. Typically though (TA = 25C fully loaded) RD and WR propagation delays are approximately 50 ns. The other signals are typically 85 ns. Propagation delays are incorporated in the AC specifications.
MATRA MHS Rev.F (14 Jan. 97)
23
80C154/83C154
Ordering Information
I S 83C154C xxx -36 D
Temperature Range blank : Commercial I : Industrial A : Automotive M : Military
Part Number 83C154 Rom 16 K x 8 80C154 External ROM 83C154C Secret ROM version 83C154T Secret Tag version
-12 -16 -20 -25 -30 -36 -L16
: 12 MHz version : 16 MHz version : 20 MHz version : 25 MHz version : 30 MHz version : 36 MHz version : Low Power (Vcc : 2.7-5.5 V Freq : 0-16 MHz)
Package Type P: PDIL 40 S: PLCC 44 F1: PQFP 44 (Foot print 13.9 mm) F2: PQFP 44 (Foot print 12.3 mm) V: VQFP (1.4 mm) T: TQFP (1.0 mm) D: CDIL 40 Q: CQFP 44 R: LCC 44 Customer Rom Code
R : Tape and Reel D : Dry Pack
Flow /883: MIL 883 Compliant P883: MIL 883 Compliant with PIND test.
24
MATRA MHS Rev.F (14 Jan. 97)

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