MC74VHCT157A Datasheet, PDF (1/8 Pages) ON Semiconductor – Quad 2-Channel Multiplexer

MC74VHCT157A
Quad 2-Channel Multiplexer
The MC74VHCT157A 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 VHCT inputs are compatible with TTL levels. This device can be
used as a level converter for interfacing 3.3 V to 5.0 V because it has full
5 V CMOS level output swings.
The VHCT157A input structures provide protection when voltages
between 0 V and 5.5 V are applied, regardless of the supply voltage. The
output structures also provide protection when V_CC = 0 V. These input and
output structures help prevent device destruction caused by supply
voltage—input/output voltage mismatch, battery backup, hot insertion, etc.
The inputs tolerate voltages up to 7 V, allowing the interface of 5 V
systems to 3 V systems.
• High Speed: t_PD = 4.1ns (Typ) at V_CC = 5 V
• Low Power Dissipation: I_CC = 4µA (Max) at T_A = 25°C
• TTL–Compatible Inputs: V_IL = 0.8 V; V_IH = 2.0 V
• Power Down Protection Provided on Inputs and Outputs
• Balanced Propagation Delays
• Designed for 2 V to 5.5 V Operating Range
• Low Noise: V_OLP = 0.8 V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300mA
• ESD Performance: HBM > 2000 V; Machine Model > 200 V
• Chip Complexity: 82 FETs or 20 Equivalent Gates
http://onsemi.com
MARKING DIAGRAMS
SO–16
D SUFFIX
CASE 751B
16
9
VHCT157A
AWLYWW
1
8
TSSOP–16
DT SUFFIX
CASE 948F
16
9
VHCT157A
ALYW
1
8
EIAJ SO–16
M SUFFIX
CASE 966
16
9
VHCT157A
ALYW
1
8
A
L, WL
Y
W, WW
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
MC74VHCT157AD
Package
SO–16
Shipping
48 Units/Rail
MC74VHCT157ADR2 SO–16 2500 Tape & Reel
MC74VHCT157ADT TSSOP–16 96 Units/Rail
MC74VHCT157ADTR2 TSSOP–16 2500 Tape & Reel
MC74VHCT157AM EIAJ–SO–16 50 Units/Rail
MC74VHCT157AMEL EIAJ–SO–16 2000 Tape & Reel
© Semiconductor Components Industries, LLC, 2001
1
April, 2001 – Rev. 1
Publication Order Number:
MC74VHCT157A/D