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TC74LCX652FS
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX652FS
Low-Voltage Octal Bus Transceiver/Register with 5-V Tolerant Inputs and Outputs
The TC74LCX652FS is a high-performance CMOS octal bus transceiver/register. Designed for use in 3.3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. This device is designed for low-voltage (3.3 V) VCC applications, but it could be used to interface to 5-V supply environment for both inputs and outputs. This device is bus transceiver with 3-state outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the internal registers. All inputs are equipped with protection circuits against static discharge.
Weight: 0.14 g (typ.)
Features
* * * * * * * * Low-voltage operation: VCC = 2.0 to 3.6 V High-speed operation: tpd = 7.0 ns (max) (VCC = 3.0 to 3.6 V) Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V) Latch-up performance: 500 mA Available in SSOP Bidirectional interface between 5 V and 3.3 V signals Power-down protection provided on all inputs and outputs Pin and function compatible with the 74 series (74AC/F/ALS/LS etc.) 652 type
Note 1: Do not apply a signal to any bus pins when it is in the output mode. Damage may result. All floating (high impedance) bus pins must have their input levels fixed by means of pull-up or pull-down resistors.
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Pin Assignment (top view) IEC Logic Symbol
OEBA
CAB SAB OEAB A1 A2 A3 A4 A5 A6
1 2 3 4 5 6 7 8 9
24 23 22 21 20 19 18 17 16 15 14 13
VCC CBA SBA
OEBA
OEAB CBA SBA CAB SAB
21 3 23 22 1 2
EN1 [BA] EN2 [AB] C4 G5 C6 G7
>
B1 B2 B3 B4 B5 B6 B7 A5 B8 A6 A7 A8 A2 A3 A4 A1
4
1
5
4D 1 1 2
20
B1
5 6 7 8 9 10 11
1 5 6D 7> 17
19 18 17 16 15 14 13
B2 B3 B4 B5 B6 B7 B8
A7 10 A8 11 GND 12
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Truth Table
Control Inputs OEAB
OEBA
Bus SAB X SBA X A Input Z B Input Z X Output L H L H Qn L H Input L H L H X L H Output
Function The output functions of A and B busses are disabled. Both A and B busses are used as inputs to the internal flip-flops. Data on the bus will be stored on the rising edge of the Clock. The data on the A bus are displayed on the B bus. The data on the A bus are displayed on the B bus, and are stored into the A storage flip-flops on the rising edge of CAB. The data in the A storage flop-flops are displayed on the B bus. The data on the A bus are stored into the A storage flip-flops on the rising edge of CAB, and the stored data propagate directly onto the B bus. The data on the B bus are displayed on the A bus. The data on the B bus are displayed on the A bus, and are stored into the B storage flip-flops on the rising edge of CBA. The data in the B storage flip-flops are displayed on the A bus. The data on the B bus are stored into the B storage flip-flops on the rising edge of CBA, and the stored data propagate directly onto the A bus.
CAB X*
CBA X*
L
H X X X Input X* X* L X L H L X* L X H X* X* H X X L X* H X H Output X* X* X L L H L X* X L H X* X* X H Qn L X* X H H Output
H
H
L
L
H
L
X*
X*
H
H Qn Qn
The data in the A storage flop-flops are displayed on the B bus, and the data in the B storage flop-flops are displayed on the A.
X: Don't care Z: High impedance Qn: The data stored into the internal flip-flops by most recent low to high transition of the clock inputs. *: The clocks are not internally gated with either OEAB or OEBA . Therefore, data on the A and/or B busses may be clocked into the storage flip-flops at any time.
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System Diagram
3
OEAB
OEBA
21
A1
4 D CK
BB
BA
Q
fA
20 Q D CK
B1
fB
A8 CAB SAB
11 1 2 fA
Same as above block
13 23 fB 22
B8 CBA SBA
BA
BB
Timing Chart
OEAB
OEBA
SAB
SBA
CAB
CBA
A
B A: Input B: Output A: Output B: Input
: Don't care
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Maximum Ratings
Characteristics Power supply voltage DC input voltage (CAB, CBA, SAB, SBA, OEAB, OEBA ) VIN Symbol VCC Rating -0.5 to 7.0 -0.5 to 7.0 -0.5 to 7.0 (Note 2) DC bus I/O voltage VI/O -0.5 to VCC + 0.5 (Note 3) Input diode current Output diode current DC output current Power dissipation DC VCC/ground current Storage temperature IIK IOK IOUT PD ICC/IGND Tstg -50 50 50 180 100 -65 to 150 (Note 4) mA mA mA mW mA C V Unit V V
Note 2: Output in OFF state Note 3: High or low state. IOUT absolute maximum rating must be observed. Note 4: VOUT < GND, VOUT > VCC
Recommended Operating Conditions
Characteristics Power supply voltage Input voltage (CAB, CBA, SAB, SBA, OEAB, OEBA ) Bus I/O voltage VIN 0 to 5.5 0 to 5.5 VI/O 0 to VCC 24 12 -40 to 85 0 to 10 (Note 10) (Note 6) V (Note 7) (Note 8) mA (Note 9) C ns/V V Symbol VCC Rating 2.0 to 3.6 1.5 to 3.6 (Note 5) Unit V
Output current Operating temperature Input rise and fall time
IOH/IOL Topr dt/dv
Note 5: Data retention only Note 6: Output in OFF state Note 7: High or low state Note 8: VCC = 3.0 to 3.6 V Note 9: VCC = 2.7 to 3.0 V Note 10: VIN = 0.8 to 2.0 V, VCC = 3.0 V
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Electrical Characteristics DC Characteristics (Ta = -40 to 85C)
Characteristics H-level Input voltage L-level Symbol VIH VIL Test Condition VCC (V) 3/4 3/4 IOH = -100 mA H-level VOH VIN = VIH or VIL IOH = -12 mA IOH = -18 mA Output voltage IOH = -24 mA IOL = 100 mA L-level VOL VIN = VIH or VIL IOL = 12 mA IOL = 16 mA IOL = 24 mA Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current Increase in Icc per input IIN IOZ IOFF ICC DICC VIN = 0 to 5.5 V VIN = VIH or VIL VOUT = 0 to 5.5 V VIN/VOUT = 5.5 V VIN = VCC or GND VIN/VOUT = 3.6 to 5.5 V VIH = VCC - 0.6 V 2.7 to 3.6 2.7 to 3.6 2.7 to 3.6 2.7 3.0 3.0 2.7 to 3.6 2.7 3.0 3.0 2.7 to 3.6 2.7 to 3.6 0 2.7 to 3.6 2.7 to 3.6 2.7 to 3.6 2.0 3/4 VCC - 0.2 2.2 2.4 2.2 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 0.8 3/4 3/4 3/4 3/4 0.2 0.4 0.4 0.55 5.0 5.0 10.0 10.0 10.0 500 mA mA mA mA V V Min Max Unit
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AC Characteristics (Ta = -40 to 85C)
Characteristics Symbol Test Condition VCC (V) Maximum clock frequency Propagation delay time (An, Bn-Bn, An) Propagation delay time (CAB, CBA-Bn, An) Propagation delay time (SAB, SBA-Bn, An) Output enable time (OEAB, OEBA -An, Bn) Output disable time (OEAB, OEBA -An, Bn) Minimum pulse width fmax tpLH tpHL tpLH tpHL tpLH tpHL tpZL tPZH tpLZ tpHZ tW (H) tW (L) ts Figure 1, Figure 2 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 (Note 11) 3.3 0.3 3/4 150 3/4 1.5 3/4 1.5 3/4 1.5 3/4 1.5 3/4 1.5 3.3 3.3 2.5 2.5 1.5 1.5 3/4 3/4 3/4 3/4 8.0 7.0 9.5 8.5 9.5 8.5 9.5 8.5 9.5 8.5 3/4 3/4 3/4 3/4 3/4 3/4 3/4 1.0 ns ns ns ns ns MHz Min Max Unit
Figure 1, Figure 2
ns
Figure 1, Figure 5
Figure 1, Figure 2
Figure 1, Figure 3, Figure 4
Figure 1, Figure 3, Figure 4
Figure 1, Figure 5
Minimum setup time
Figure 1, Figure 5
ns
Minimum hold time
th tosLH tosHL
Figure 1, Figure 5
ns
Output to output skew
ns
Note 11: Parameter guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|)
Dynamic Switching Characteristics
(Ta = 25C, input: tr = tf = 2.5 ns, CL = 50 pF, RL = 500 W)
Characteristics Quiet output maximum dynamic VOL Quiet output minimum dynamic VOL Symbol Test Condition VCC (V) VOLP |VOLV| VIH = 3.3 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V (Note 12) (Note 12) 3.3 3.3 0.8 0.8 V V Typ. Unit
Note 12: Characterized with 7 outputs switching from high-to-low or low-to- high. The remaining output is measured in the low state.
Capacitive Characteristics (Ta = 25C)
Characteristics Input capacitance Bus input capacitance Power dissipation capacitance Symbol CIN CI/O CPD Test Condition VCC (V) OEAB, OEBA , CAB, CBA, SAB, SBA An, Bn fIN = 10 MHz (Note 13) 3.3 3.3 3.3 7 8 25 pF pF pF Typ. Unit
Note 13: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPDVCCfIN + ICC/8 (per bit)
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AC Test Circuit
Open 6.0 V GND Measure CL RL CL = 50 pF RL = 500 W
Switch RL
Parameter tpLH, tpHL tpLZ, tpZL tpHZ, tpZH tw, ts, th, fmax
Switch Open 6.0 V GND Open
Output
Figure 1 AC Waveform
tr 2.5 ns Input (An, Bn, SAB, SBA) tf 2.5 ns 90% 1.5 V 10% 2.7 V
GND
Output (Bn, An) tpLH
VOH 1.5 V tpHL VOL
Figure 2
tpLH, tpHL
tf 2.5 ns Input ( OEBA )
tr 2.5 ns 90% 1.5 V 10% 2.7 V
GND
3.0 V Output (An) tpZL 1.5 V tpLZ VOH - 0.3 V tpHZ VOL + 0.3 V
VOL VOH GND
Output (An) tpZH
1.5 V
Figure 3
tpLZ, tpHZ, tpZL, tpZH
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tf 2.5 ns Input (OEAB) tr 2.5 ns 90% 1.5 V 10% 2.7 V
GND
tpLZ Output (Bn) 1.5 V VOL + 0.3 V tpZL
3.0 V
VOL VOH 1.5 V GND
Output (Bn)
VOH - 0.3 V tpHZ tpZH
Figure 4
tpLZ, tpHZ, tpZL, tpZH
tr 2.5 ns Input (CAB, CBA) 90% 1.5 V 10%
tf 2.5 ns 2.7 V
tW (H)
tW (L)
GND
2.7 V Input (An, Bn) 1.5 V ts (H) th (H) ts (L) th (L) GND
Output (Bn, An) tpHL
VOH 1.5 V tpLH VOL
Figure 5
tpLH, tpHL, tw, ts, th
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Package Dimensions
Weight: 0.14 g (typ.)
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RESTRICTIONS ON PRODUCT USE
000707EBA
* TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice.
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