MC74VHC157(2011) Просмотр технического описания (PDF) - ON Semiconductor
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MC74VHC157 Datasheet PDF : 7 Pages
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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 Pb−Free and are RoHS Compliant
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
VHC157G
AWLYWW
1
8
TSSOP−16
DT SUFFIX
CASE 948F
16
9
VHC
157
ALYW G
G
1
8
VHC157 = Specific Device Code
A
= Assembly Location
WL, L = Wafer Lot
Y
= Year
WW, W = Work Week
G or G = Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping
MC74VHC157DR2G SOIC−16 2500 Units/Reel
MC74VHC157DTR2G TSSOP−16 2500 Units/Reel
© Semiconductor Components Industries, LLC, 2011
1
May, 2011 − Rev. 6
Publication Order Number:
MC74VHC157/D
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