ꢀꢁꢂ ꢃ ꢄꢅ ꢆ ꢂꢇ ꢈ ꢀꢁꢇ ꢃꢄ ꢅꢆ ꢂꢇ
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SCLS113D − DECEMBER 1982 − REVISED SEPTEMBER 2003
D
D
D
Wide Operating Voltage Range of 2 V to 6 V
Outputs Can Drive Up To 15 LSTTL Loads
D
D
D
Typical t = 11 ns
pd
6-mA Output Drive at 5 V
Low Power Consumption, 80-µA Max I
Low Input Current of 1 µA Max
CC
SN54HC157 . . . J OR W PACKAGE
SN74HC157 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54HC157 . . . FK PACKAGE
(TOP VIEW)
A/B
1A
V
CC
G
1
2
3
4
5
6
7
8
16
15
14
13
3
2
1
20 19
18
4A
4B
NC
1B
1Y
NC
2A
2B
4
5
6
7
8
1B
4A
4B
17
16
1Y
2A
12 4Y
15 4Y
14
9 10 11 12 13
11
10
9
2B
3A
3B
3Y
3A
2Y
GND
NC − No internal connection
description/ordering information
These data selectors/multiplexers contain inverters and drivers to supply full data selection to the four output
gates. A separate strobe (G) input is provided. A 4-bit word is selected from one of two sources and is routed
to the four outputs. The ’HC157 devices present true data.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
†
T
A
PACKAGE
PDIP − N
PACKAGE
Tube of 25
Tube of 40
SN74HC157N
SN74HC157N
SN74HC157D
Reel of 2500
Reel of 250
Reel of 2000
Reel of 2000
Tube of 90
SN74HC157DR
SN74HC157DT
SN74HC157NSR
SN74HC157DBR
SN74HC157PW
SN74HC157PWR
SN74HC157PWT
SNJ54HC157J
SNJ54HC157W
SNJ54HC157FK
SOIC − D
HC157
SOP − NS
HC157
HC157
−40°C to 85°C
SSOP − DB
Reel of 2000
Reel of 250
Tube of 25
TSSOP − PW
HC157
CDIP − J
CFP − W
LCCC − FK
SNJ54HC157J
SNJ54HC157W
SNJ54HC157FK
Tube of 150
Tube of 55
−55°C to 125°C
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright 2003, Texas Instruments Incorporated
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