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MC74VHC157 Datasheet, PDF (1/7 Pages) Motorola, Inc – Quad 2-Channel Multiplexer
MC74VHC157
Quad 2- Channel Multiplexer
The MC74VHC157 is an advanced high--speed CMOS quad
2--channel multiplexer, fabricated with silicon gate CMOS
technology. It achieves high--speed operation similar to equivalent
Bipolar--Schottky TTL, while maintaining CMOS low--power
dissipation.
It consists of four 2--input digital multiplexers with common select
(S) and enable (E) inputs. When E is held High, selection of data is
inhibited and all the outputs go Low.
The select decoding determines whether the A or B inputs get routed
to the corresponding Y outputs.
The internal circuit is composed of three stages, including a buffer
output which provides high noise immunity and stable output. The
inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems
to 3 V systems.
• High Speed: tPD = 4.1 ns (Typ) at VCC = 5 V
• Low Power Dissipation: ICC = 4 mA (Max) at TA = 25°C
• High Noise Immunity: VNIH = VNIL = 28% VCC
• Power Down Protection Provided on Inputs
• Balanced Propagation Delays
• Designed for 2 V to 5.5 V Operating Range
• Low Noise: VOLP = 0.8 V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300 mA
• ESD Performance: HBM > 2000 V; Machine Model > 200 V
• Chip Complexity: 82 FETs
• These devices are available in Pb--free package(s). Specifications herein
apply to both standard and Pb--free devices. Please see our website at
www.onsemi.com for specific Pb--free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
S1
A0 2
B0 3
Y0 4
A1 5
B1 6
Y1 7
GND 8
16 VCC
15 E
14 A3
13 B3
12 Y3
11 A2
10 B2
9 Y2
Figure 1. Pin Assignment
http://onsemi.com
MARKING
DIAGRAMS
SOIC--16
D SUFFIX
CASE 751B
16
9
VHC157
AWLYYWW
1
8
TSSOP--16
DT SUFFIX
CASE 948F
16
9
VHC
157
ALYW
1
8
16
9
74VHC157
SOIC EIAJ--16
ALYW
M SUFFIX
CASE 966
1
8
A
L, WL
Y, YY
W, WW
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
Package
Shipping
MC74VHC157D
SOIC--16 48 Units/Rail
MC74VHC157DR2 SOIC--16 2500 Units/Reel
MC74VHC157DT TSSOP--16 96 Units/Rail
MC74VHC157DTR2 TSSOP--16 2500 Units/Reel
MC74VHC157M
MC74VHC157MEL
SOIC
EIAJ--16
SOIC
EIAJ--16
50 Units/Rail
2000 Units/Reel
© Semiconductor Components Industries, LLC, 2006
1
March, 2006 -- Rev. 5
Publication Order Number:
MC74VHC157/D