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IDT74FCT151AT/CT FAST CMOS 8-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
FAST CMOS 8-INPUT MULTIPLEXER
IDT74FCT151AT/CT
FEATURES:
* * * *
DESCRIPTION:
* * * *
A and C grades Low input and output leakage 1A (max.) CMOS power levels True TTL input and output compatibility: - VOH = 3.3V (typ.) - VOL = 0.3V (typ.) High Drive outputs (-15mA IOH, 48mA IOL) Meets or exceeds JEDEC standard 18 specifications Power off disable outputs permit "live insertion" Available in SOIC and QSOP packages
The IDT74FCT151T is a high-speed 8-input multiplexer built using an advanced dual metal CMOS technology. It selects one bit of data from up to eight sources under the control of three select inputs. Both assertion and negation outputs are provided. The IDT74FCT151T has a common Active-low enable (E) input. When E is low, data from one of eight inputs is routed to the complementary outputs according to the 3-bit code applied to the Select (S0-S2) inputs. A common application of the FCT151 is data routing from one of eight sources.
FUNCTIONAL BLOCK DIAGRAM
12
I7
I6
13
I5
14
I4
15
6
Z Z
5
I3
1
I2
2
I1
3
I0
4
9
10
11
7
S2
S1
S0
E
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
MARCH 2002
DSC-4212/5
(c) 2002 Integrated Device Technology, Inc.
IDT74FCT151AT/CT FAST CMOS 8-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Max -0.5 to +7 -0.5 to VCC+0.5 -65 to +150 -60 to +120 Unit V V C mA
I3 I2 I1 I0 Z Z E GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC I4 I5 I6 I7 S0 S1 S2
TSTG IOUT
NOTES: 1. Stresses greater than 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 for extended periods may affect reliability. No terminal voltage may exceed Vcc by +0.5V unless otherwise noted. 2. Inputs and Vcc terminals only. 3. Output and I/O terminals only.
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 6 8 Max. 10 12 Unit pF pF
SOIC/ QSOP TOP VIEW
NOTE: 1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names I0 - I7 S0 - S2 E Z Z Data Inputs Selects Inputs Enable Inputs (Active LOW) Data Output Inverted Data Output Description
FUNCTION TABLE(1)
Inputs S2 X L L L L H H H H S1 X L L H H L L H H S0 X L H L H L H L H E H L H L L L L L L Z L I0 I1 I2 I3 I4 I5 I6 I7 Outputs Z H I0 I1 I2 I3 I4 I5 I6 I7
NOTE: 1. H = HIGH Voltage Level X = Don't Care L = LOW Voltage Level Z = High Impedance
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IDT74FCT151AT/CT FAST CMOS 8-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 5%
Symbol VIH VIL IIH IIL IOZH IOZL II VIK IOS VOH VOL VH ICC Input HIGH Current(4) Clamp Diode Voltage Short Circuit Current Output HIGH Voltage Output LOW Voltage Input Hysteresis Quiescent Power Supply Current VCC = Max. VIN = GND or VCC VCC = Max., VI = VCC (Max.) VCC = Min., IIN = -18mA VCC = Max., VO = GND(3) VCC = Min VIN = VIH or VIL VCC = Min VIN = VIH or VIL -- IOH = -8mA IOH = -15mA IOL = 48mA Parameter Input HIGH Level Input LOW Level Input HIGH Current(4) Input LOW Current(4) High Impedance Output Current(4) Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VCC = Max. VCC = Max., VI = VCC (Max.) VI = 2.7V VI = 0.5V VI = 2.7V VI = 0.5V Min. 2 -- -- -- -- -- -- -- -60 2.4 2 -- -- -- Typ.(2) -- -- -- -- -- -- -- -0.7 -120 3.3 3 0.3 200 0.01 Max. -- 0.8 1 1 1 1 1 -1.2 -225 -- -- 0.5 -- 1 A V mA V V mV mA Unit V V A A A
NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. The test limit for this parameter is 5A at TA = -55C.
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IDT74FCT151AT/CT FAST CMOS 8-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open E or OE = GND One Input Toggling 50% Duty Cycle IC Total Power Supply Current(5) VCC = Max. Outputs Open fi = 10MHz 50% Duty Cycle E or OE = GND One Output Toggling VIN = VCC VIN = GND VIN = 3.4V VIN = GND -- 3.2 6.5 mA VIN = VCC VIN = GND Test Conditions(1) Min. -- -- Typ.(2) 0.5 0.15 Max. 2 0.25 Unit mA mA/ MHz
--
3.5
7.5
NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient. 3. Per TTL driven input; (VIN = 3.4V). All other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCP/2 + fiNO) ICC = Quiescent Current ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) fi = Output Frequency NO = Number of Outputs at fi All currents are in milliamps and all frequencies are in megahertz.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
IDT74FCT151AT Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL Parameter Propagation Delay Sx to Z Propagation Delay Sx to Z Propagation Delay E toZ Propagation Delay E to Z Propagation Delay Ix to Z Propagation Delay Ix to Z 1.5 5.5 1.5 4.7
ns
IDT74FCT151CT Min.(2) 1.5 1.5 1.5 1.5 1.5 Max. 5.6 5.8 4.8 5 4.4 Unit
ns ns ns ns ns
Condition(1) CL = 50pF RL = 500
Min.(2) 1.5 1.5 1.5 1.5 1.5
Max. 6.6 6.8 5.6 5.8 5.2
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays.
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IDT74FCT151AT/CT FAST CMOS 8-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
V CC 500 VIN Pulse Generator RT D.U.T . VOUT 7.0V
SWITCH POSITION
Test Open Drain Disable Low Enable Low All Other Tests Switch Closed Open
50pF CL
500
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Octal link
Test Circuits for All Outputs
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC.
tSU
tH
tREM
3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
Octal link
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
Octal link
1.5V
1.5V
tSU
tH
Pulse Width
Set-Up, Hold, and Release Times
ENABLE SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL 3V 1.5V 0V VOH 1.5V VOL 3V 1.5V 0V
Octal link
DISABLE 3V 1.5V
CONTROL INPUT tPZL OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH SWITCH CLOSED tPZH SWITCH OPEN 3.5V 1.5V tPHZ 0.3V 1.5V 0V tPLZ
0V 3.5V 0.3V VOL VOH 0V
Octal link
Propagation Delay
Enable and Disable Times
NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns.
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IDT74FCT151AT/CT FAST CMOS 8-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT XX Temp. Range FCT XXXX Device Type X Package
SO Q
Small Outline IC Quarter-Size Outline Package
151AT 151CT
8-Input Multiplexer
74
- 40C to +85C
DATA SHEET DOCUMENT HISTORY
3/25/2002 Removed standard speed grade
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for Tech Support: logichelp@idt.com (408) 654-6459
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