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ꢆ ꢊꢋ ꢌꢊ ꢍꢈ ꢎꢄꢏꢄꢈꢀ ꢐꢅ ꢐꢑꢏꢋ ꢒꢀꢓ ꢔꢕ ꢅꢏ ꢖ ꢗꢅ ꢐꢘ ꢐ ꢒꢀ
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SDAS205A − APRIL 1982 − REVISED DECEMBER 1994
SN54ALS151 . . . J PACKAGE
SN74ALS151, SN74AS151 . . . D OR N PACKAGE
(TOP VIEW)
• 8-Line to 1-Line Multiplexers Can Perform
as:
Boolean Function Generators
Parallel-to-Serial Converters
Data Source Selectors
D3
D2
D1
D0
Y
W
G
GND
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
D4
D5
D6
D7
A
• Input Clamping Diodes Simplify System
Design
• Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
B
C
description
SN54ALS151 . . . FK PACKAGE
(TOP VIEW)
These data selectors/multiplexers provide full
binary decoding to select one-of-eight data
sources. The strobe (G) input must be at a low
logic level to enable the inputs. A high level at the
strobe terminal forces the W output high and the
Y output low.
3
2
1
20 19
18 D5
D1
D0
NC
Y
4
5
6
7
8
17
16
15
14
D6
NC
D7
A
The SN54ALS151 is characterized for operation
over the full military temperature range of −55°C
to 125°C. The SN74ALS151 and SN74AS151 are
characterized for operation from 0°C to 70°C.
W
9 10 11 12 13
NC − No internal connection
FUNCTION TABLE
INPUTS
OUTPUTS
SELECT
STROBE
G
C
X
L
B
X
L
A
X
L
Y
W
H
H
L
L
L
L
L
L
L
L
L
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
L
L
H
L
L
H
H
L
L
H
L
H
H
H
H
L
H
L
H
H
H
H = high level, L = low level, X = irrelevant
D0, D1, . . . D7 = the level of the respective D input
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Copyright 1994, Texas Instruments Incorporated
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ꢡ ꢥ ꢢ ꢡꢚ ꢛꢯ ꢝꢜ ꢠ ꢨꢨ ꢦꢠ ꢞ ꢠ ꢟ ꢥ ꢡ ꢥ ꢞ ꢢ ꢪ
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1
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