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FAST CMOS 8-INPUT MULTIPLEXER
Integrated Device Technology, Inc.
IDT54/74FCT151T/AT/CT
FEATURES:
* * * * * Std., A, and C speed grades Low input and output leakage 1A (max.) Extended commercial range of -40C to +85C CMOS power levels True TTL input and output compatibility - VOH = 3.3V (typ.) - VOL = 0.3V (typ.) High drive outputs (-15mA IOH, 48mA IOL) Power off disable outputs permit "live insertion" Meets or exceeds JEDEC standard 18 specifications Product available in Radiation Tolerant and Radiation Enhanced versions Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked) Available in DIP, SOIC, CERPACK and LCC packages
DESCRIPTION:
The IDT54/74FCT151T/AT/CT are high-speed 8-input multiplexers built using an advanced dual metal CMOS technology. They select one bit of data from up to eight sources under the control of three select inputs. Both assertion and negation outputs are provided. The IDT54/74FCT151T/AT/CT 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
I7
I6
I5 Z I4 Z
I3
I2
I1
I0
S2
S1
S0
E
2635 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
(c)1997 Integrated Device Technology, Inc.
SEPTEMBER 1996
DSC-2635/5
6.5
1
IDT54/74FCT151T/AT/CT FAST CMOS 8-INPUT MULTIPLEXER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
NC VCC
INDEX
I2
I3 I2 I1 I0 Z
Z
1 2 3 4 5 6 7 8
16 15 P16-1 D16-1 13 SO16-1 12 & E16-1 11 10 9 14
VCC I4 I5 I6 I7 S0 S1 S2
I1 I0 NC Z 4 5 6 7 8 L20-2 32 1 20 19 18 17 16 15 14 9 10 11 12 13
NC GND S2 S1 E
I3
I4
I5 I6 NC I7 S0
E GND
z
DIP/SOIC/CERPACK TOP VIEW
2635 drw 02
2635 drw 03
LCC TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description VTERM(2) Terminal Voltage with Respect to GND VTERM(3) Terminal Voltage with Respect to GND TSTG Storage Temperature IOUT DC Output Current Max. -0.5 to +7.0 -0.5 to VCC +0.5 -65 to +150 -60 to +120 Unit V V C mA
PIN DESCRIPTION
Pin Names I0 - I7 S0 - S2
E
Description Data Inputs Selects Inputs Enable Input (Active LOW) Data Output Inverted Data Output
2635 tbl 03
Z
Z
2635 lnk 01 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. Input and VCC terminals only. 3. Outputs and I/O terminals only.
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
Outputs Z L I0 I1 I2 I3 I4 I5 I6 I7
Z
CAPACITANCE (TA = +25C, f = 1.0MHz)
Symbol Parameter(1) CIN Input Capacitance COUT Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 6 8 Max. Unit 10 pF 12
pF
2635 lnk 02
H L L L L L L L L
H
I0 I1 I2 I3 I4 I5 I6 I7
NOTE: 1. This parameter is measured at characterization but not tested.
NOTE: 2635 tbl 04 1. H = HIGH Voltage Level, L = LOW Voltage Level, X = Don't care, Z = High Impedance.
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IDT54/74FCT151T/AT/CT FAST CMOS 8-INPUT MULTIPLEXER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Commercial: TA = -40C to +85C, VCC = 5.0V 5%; Military: TA = -55C to +125C, VCC = 5.0V 10%
Symbol VIH VIL II H II L IOZH IOZL II VIK IOS VOH Input HIGH Current (4) Clamp Diode Voltage Short Circuit Current Output HIGH Voltage VCC = Min., IN = -18mA VCC = Max.(3) , VO = GND VCC = Min. VIN = VIH or VIL IOH = -6mA MIL. IOH = -8mA COM'L. IOH = -12mA MIL. IOH = -15mA COM'L. VOL VH ICC Output LOW Voltage Input Hysteresis Quiescent Power Supply Current VCC = Max. VIN = GND or VCC VCC = Min. VIN = VIH or VIL
--
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 = 2.7V VI = 0.5V VO = 2.7V VO = 0.5V VCC = Max., VI = VCC (Max.)
Min. 2.0 -- -- -- -- -- -- -- -60 2.4 2.0 -- -- --
Typ.(2) -- -- -- -- -- -- -- -0.7 -120 3.3 3.0 0.3 200 0.01
Max. -- 0.8 1 1 1 1 20 -1.2 -225 -- -- 0.5 -- 1
Unit V V A A A A V mA V V V mV mA
2635 tbl 05
IOL = 32mA MIL. IOL = 48mA COM'L.
NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second. 4. The test limit for this parameter is 5A at TA = -55C.
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IDT54/74FCT151T/AT/CT FAST CMOS 8-INPUT MULTIPLEXER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter QuiescentPower Supply Current TTL Inputs HIGH Dynamic Power Supply Current (4) Test Conditions(1) VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open E or OE = GND One Bit Toggling 50% Duty Cycle VCC = Max. Outputs Open fi = 10MHz 50% Duty Cycle E or OE= GND One Input Toggling Min. -- VIN = VCC VIN = GND -- Typ.(2) 0.5 0.15 Max. 2.0 0.25 Unit mA mA/ MHz
IC
Total Power Supply Current (5)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND
--
3.2
6.5
mA
--
3.5
7.5
NOTES: 1. For conditions shown as Max. or Min., 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. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested. 6. 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 = Input Frequency NO = Number of Inputs at fi All currents are in milliamps and all frequencies are in megahertz.
2635 tbl 06
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
IDT54/74FCT151T Com'l. Symbol Parameter tPLH Propagation Delay tPHL SN to Z tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL
Propagation Delay
IDT54/74FCT151AT Com'l.
Min.(2) Max.
IDT54/74FCT151CT Com'l.
Min.(2) Max.
Mil.
Min.(2) Max.
Mil.
Min.(2) Max.
Mil.
Min. (2) Max.
Condition(1) CL = 50pF RL = 500
Min.(2)
Max.
Unit
ns ns ns ns ns ns
1.5
9.0
1.5 10.0 1.5 11.5 1.5 7.5
1.5 1.5 1.5 1.5 1.5 1.5
6.6 6.8 5.6 5.8 5.2 5.5
1.5 1.5 1.5 1.5 1.5 1.5
7.4 7.6 6.3 6.6 5.8 6.1
1.5 1.5 1.5 1.5 1.5 1.5
5.6 5.8 4.8 5.0 4.4 4.7
1.5 1.5 1.5 1.5 1.5 1.5
6.2 6.5 5.4 5.7 4.9 5.2
SN to Z
Propagation Delay
E
1.5 10.5 1.5 1.5 1.5 1.5 7.0 9.5 6.5 7.5
toZ Z
Propagation Delay
Eto
1.5 11.0 1.5 1.5 7.5 9.0
Propagation Delay
IN to Z
Propagation Delay
IN to Z
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays.
2635 tbl 07
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IDT54/74FCT151T/AT/CT FAST CMOS 8-INPUT MULTIPLEXER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTS
V CC 500 VIN Pulse Generator RT D.U.T. 50pF CL
2635 drw 04
SWITCH POSITION
7.0V
Test Open Drain Disable Low Enable Low All Other Tests
Switch
Closed Open
VOUT
500
2635 lnk 08 DEFINITIONS: CL= Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. tSU
tH
3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
2635 drw 05
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
1.5V
tREM
1.5V
2635 drw 06
tSU
tH
PROPAGATION DELAY
3V 1.5V 0V VOH 1.5V VOL 3V 1.5V 0V
2635 drw 07
ENABLE AND DISABLE TIMES
ENABLE DISABLE 3V CONTROL INPUT tPZL OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH SWITCH CLOSED tPZH SWITCH OPEN 1.5V 0V 0V
2635 drw 08
SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
1.5V tPLZ 3.5V 1.5V tPHZ 0.3V VOH 0V 3.5V 0.3V VOL
NOTES: 1. Diagram shown for input Control Enable-LOW and input Control DisableHIGH 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns
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IDT54/74FCT151T/AT/CT FAST CMOS 8-INPUT MULTIPLEXER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT XX FCT Temp. Range X Family XXXX Device Type X Package X Process Blank B P D SO L E 151T 151AT 151CT Commercial MIL-STD-883, Class B Plastic DIP CERDIP Small Outline IC Leadless Chip Carrier CERPACK 8-Input Multiplexer
Blank 54 74
High Drive -55C to +125C -40C to +85C
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