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MM74HC151 8-Channel Digital Multiplexer
September 1983 Revised February 1999
MM74HC151 8-Channel Digital Multiplexer
General Description
The MM74HC151 high speed Digital multiplexer utilizes advanced silicon-gate CMOS technology. Along with the high noise immunity and low power dissipation of standard CMOS integrated circuits, it possesses the ability to drive 10 LS-TTL loads. The MM74HC151 selects one of the 8 data sources, depending on the address presented on the A, B, and C inputs. It features both true (Y) and complement (W) outputs. The STROBE input must be at a low logic level to enable this multiplexer. A high logic level at the STROBE forces the W output HIGH and the Y output LOW. The 74HC logic family is functionally as well as pin-out compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.
Features
s Typical propagation delay data select to output Y: 26 ns s Wide operating supply voltage range: 2-6V s Low input current: 1 A maximum s Low quiescent supply current: 80 A maximum (74HC) s High output drive current: 4 mA minimum
Ordering Code:
Order Number MM74HC151M MM74HC151SJ MM74HC151MTC MM74HC151N Package Number M16A M16D MTC16 N16E Package Description 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Connection Diagram
Pin Assignments for DIP, SOIC, SOP and TSSOP
Truth Table
Inputs Select C X L L L L H H H H B X L L H H L L H H A X L H L H L H L H Strobe S H L L L L L L L L Y L D0 D1 D2 D3 D4 D5 D6 D7 W H D0 D1 D2 D3 D4 D5 D6 D7 Outputs
Top View
H = HIGH Level, L = LOW Level, X = Don't Care D0, D1...D7 = the level of the respective D input
(c) 1999 Fairchild Semiconductor Corporation
DS005313.prf
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MM74HC151
Logic Diagram
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MM74HC151
Absolute Maximum Ratings(Note 1)
(Note 2) Supply Voltage (VCC) DC Input Voltage (VIN) DC Output Voltage (VOUT) Clamp Diode Current (IIK, IOK) DC Output Current, per pin (IOUT) DC VCC or GND Current, per pin (ICC) Storage Temperature Range (TSTG) Power Dissipation (PD) (Note 3) S.O. Package only Lead Temperature (TL) (Soldering 10 seconds) 600 mW 500 mW 260C -0.5 to +7.0V -1.5 to VCC +1.5V -0.5 to VCC +0.5V 20 mA 25 mA 50 mA -65C to +150C
Recommended Operating Conditions
Min Supply Voltage (VCC) DC Input or Output Voltage (VIN, VOUT) Operating Temperature Range (TA) Input Rise or Fall Times (tr, tf) VCC = 2.0V VCC = 4.5V VCC = 6.0V 1000 500 400 ns ns ns -40 +85 C 2 0 Max 6 VCC Units V V
Note 1: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Note 2: Unless otherwise specified all voltages are referenced to ground. Note 3: Power Dissipation temperature derating -- plastic "N" package: - 12 mW/C from 65C to 85C.
DC Electrical Characteristics
Symbol VIH Parameter Minimum HIGH Level Input Voltage VIL Maximum LOW Level Input Voltage VOH Minimum HIGH Level Output Voltage VIN = VIH or VIL |IOUT| 20 A Conditions
(Note 4)
VCC 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0 4.5 6.0 4.2 5.7 0 0 0 0.2 0.2 TA = 25C Typ 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.98 5.48 0.1 0.1 0.1 0.26 0.26 0.1 8.0 TA = -40 to 85C TA = -55 to 125C Guaranteed Limits 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.84 5.34 0.1 0.1 0.1 0.33 0.33 1.0 80 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.7 5.2 0.1 0.1 0.1 0.4 0.4 1.0 160 Units V V V V V V V V V V V V V V V V A A
VIN = VIH or VIL |IOUT| 4.0 mA |IOUT| 5.2 mA VOL Maximum LOW Level Output Voltage VIN = VIH or VIL |IOUT| 20 A 2.0V 4.5V 6.0V VIN = VIH or VIL |IOUT| 4.0 mA |IOUT| 5.2 mA IIN ICC Maximum Input Current Maximum Quiescent Supply Current VIN = VCC or GND IOUT = 0 A 6.0V VIN = VCC or GND 4.5V 6.0V 6.0V 4.5V 6.0V
Note 4: For a power supply of 5V 10% the worst case output voltages (VOH, and VOL) occur for HC at 4.5V. Thus the 4.5V values should be used when designing with this supply. Worst case VIH and VIL occur at VCC = 5.5V and 4.5V respectively. (The VIH value at 5.5V is 3.85V.) The worst case leakage current (IIN, ICC, and IOZ) occur for CMOS at the higher voltage and so the 6.0V values should be used.
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MM74HC151
AC Electrical Characteristics
VCC = 5V, TA = 25C, CL = 15 pF, tr = tf = 6 ns Symbol tPHL, tPLH tPHL, tPLH tPHL, tPLH tPHL, tPLH tPHL, tPLH tPHL, tPLH Parameter Maximum Propagation Delay A, B or C to Y Maximum Propagation Delay A, B or C to W Maximum Propagation Delay Any D to Y Maximum Propagation Delay any D to W Maximum Propagation Delay Strobe to Y Maximum Propagation Delay Strobe to W 16 21 ns 17 23 ns 24 32 ns 22 29 ns 27 35 ns Conditions Typ 26 Guaranteed Limit 35 Units ns
AC Electrical Characteristics
CL = 50 pF, tr = tf = 6 ns (unless otherwise specified) Symbol tPHL, tPLH Parameter Maximum Propagation Delay A, B or C to Y tPHL, tPLH Maximum Propagation Delay A, B or C to W tPHL, tPLH Maximum Propagation Delay any D to Y tPHL, tPLH Maximum Propagation Delay any D to W tPHL, tPLH Maximum Propagation Delay Strobe to Y tPHL, tPLH Maximum Propagation Delay Strobe to W tTLH, tTHL Maximum Output Rise and Fall Time CPD CIN Power Dissipation Capacitance (Note 5) Maximum Input Capacitance
Note 5: CPD determines the no load dynamic power consumption, PD = CPD VCC2f + ICC VCC, and the no load dynamic current consumption, IS = CPD V CC f + ICC.
Conditions
VCC 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V
TA = 25C Typ 90 31 26 95 32 27 70 27 23 75 29 25 50 21 18 45 20 17 30 8 7 110 5 10 205 41 35 205 41 35 195 39 33 185 37 32 140 28 24 127 25 22 75 15 13
TA = -40 to 85C TA = -55 to 125C Guaranteed Limits 256 51 44 256 51 44 244 49 41 231 46 40 175 35 30 159 32 28 95 19 16 300 60 51 300 60 51 283 57 48 268 54 46 203 41 35 185 37 32 110 22 19
Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns pF
(per package)
10
10
pF
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MM74HC151
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M16A
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M16D
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MM74HC151
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC16
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MM74HC151 8-Channel Digital Multiplexer
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package Number N16E
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or systems device or system whose failure to perform can be reawhich, (a) are intended for surgical implant into the sonably expected to cause the failure of the life support body, or (b) support or sustain life, and (c) whose failure device or system, or to affect its safety or effectiveness. to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the www.fairchildsemi.com user.
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.

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