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參數(shù)資料
| 型號(hào)： | SN54F157A |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Quadruple 1-Of-2 Data Selectors(四2選1數(shù)據(jù)選擇器) |
| 中文描述： | 四重1 - 2數(shù)據(jù)選擇器（四2選1數(shù)據(jù)選擇器） |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 101K |
| 代理商： | SN54F157A |
SN54F157A, SN74F157A
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
SDFS053A – MARCH 1987 – REVISED OCTOBER 1993
Copyright
1993, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Buffered Inputs and Outputs
Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
description
The
′
F157A is a quadruple 2-input data
selector/multiplexer featuring a common strobe
(G) input. When the strobe is high, all outputs are
low. When the strobe is low, a 4-bit word is
selected from one of two sources and is routed to
the four outputs. The
′
F157A provides true data.
The SN54F157A is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74F157A is characterized for
operation from 0
°
C to 70
°
C.
FUNCTION TABLE
INPUTS
OUTPUT
Y
G
H
A/B
X
A
X
B
X
L
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
SN54F157A . . . J PACKAGE
SN74F157A . . . D OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
4A
4B
NC
4Y
3A
1B
1Y
NC
2A
2B
SN54F157A . . . FK PACKAGE
(TOP VIEW)
1
A
N
3
3
G
2
G
N
NC – No internal connection
V
C
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A/B
1A
1B
1Y
2A
2B
2Y
GND
V
CC
G
4A
4B
4Y
3A
3B
3Y
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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