MC74VHC257
Quad 2-Channel Multiplexer
with 3-State Outputs
The MC74VHC257 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 (OE) inputs. When (OE) 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 inputs tolerate voltages up to 7 V, allowing the interface of 5 V
systems to 3 V systems.
http://onsemi.com
MARKING DIAGRAMS
16
9
VHC257G
AWLYWW
SO−16
D SUFFIX
CASE 751B
1
8
• High Speed: t = 4.1 ns (Typ) at V = 5.0 V
PD
CC
• Low Power Dissipation: I = 4.0 mA (Max) at T = 25°C
CC
A
16
9
• High Noise Immunity: V
= V
= 28% V
NIH
NIL CC
VHC
257
• Power Down Protection Provided on Inputs
• Balanced Propagation Delays
TSSOP−16
DT SUFFIX
CASE 948F
ALYWG
G
• Designed for 2.0 V to 5.5 V Operating Range
1
8
• Low Noise: V
= 0.8 V (Max)
OLP
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300 mA
A
= Assembly Location
L, WL = Wafer Lot
• ESD Performance: HBM > 2000 V; Machine Model > 200 V
• Chip Complexity: FETs = 100; Equivalent Gates = 25
• These Devices are Pb−Free and are RoHS Compliant
Y, YY = Year
W, WW = Work Week
G or G = Pb−Free Package
ORDERING INFORMATION
V
S
1
2
16
15
CC
Device
Package
SO−16
SO−16
Shipping
48 Units/Rail
2500 Units/Reel
A0
OE
A3
B3
MC74VHC257DG
MC74VHC257DR2G
MC74VHC257DTG
B0
Y0
3
4
14
13
TSSOP−16 96 Units/Rail
MC74VHC257DTR2G TSSOP−16 2500 Units/Reel
A1
B1
Y3
A2
5
6
12
11
B2
Y2
7
8
10
9
Y1
GND
Figure 1. Pin Assignment
© Semiconductor Components Industries, LLC, 2014
1
Publication Order Number:
September, 2014 − Rev. 6
MC74VHC257/D