SN54ALS08, SN54AS08, SN74ALS08, SN74AS08
QUADRUPLE 2-INPUT POSITIVE-AND GATES

SDAS191A – APRIL 1982 – REVISED DECEMBER 1994
Copyright  1994, Texas Instruments Incorporated
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
• Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs

description
These devices contain four independent 2-input
positive-AND gates. They perform the Boolean
functions Y = A • B or Y = A + B in positive logic.
The SN54ALS08 and SN54AS08 are
characterized for operation over the full military
temperature range of –55°C to 125°C. The
SN74ALS08 and SN74AS08 are characterized for
operation from 0°C to 70°C.
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
A B
Y
H H H
L XL
XLL
logic symbol
†
logic diagram (positive logic)
1
1A
2
1B
4
2A
5
2B
9
3A
10
3B
12
4A
13
4B
&
1Y
3
2Y
6
3Y
8
4Y
11
1
1A
2
1B
1Y
3
4
2A
5
2B
2Y
6
9
3A
10
3B
3Y
8
12
4A
13
4B
4Y
11
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
SN54ALS08, SN54AS08 ...J PACKAGE
SN74ALS08, SN74AS08 ...D OR N PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1B
1Y
2A
2B
2Y
GND
V
CC
4B
4A
4Y
3B
3A
3Y
SN54ALS08, SN54AS08 . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
4A
NC
4Y
NC
3B
1Y
NC
2A
NC
2B
1B 1A NC
3Y 3A
V 4B
2Y
NC
CC
NC – No internal connection
GND
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.