SN54HCT08, SN74HCT08
QUADRUPLE 2-INPUT POSITIVE-AND GATES
SCLS063B – NOVEMBER 1988 – REVISED MAY 1997
SN54HCT08 . . . J OR W PACKAGE
SN74HCT08 . . . D, DB, N, OR PW PACKAGE
(TOP VIEW)
Inputs Are TTL-Voltage Compatible
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Shrink Small-Outline (PW), and
Ceramic Flat (W) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
1A
1B
V
CC
1
2
3
4
5
6
7
14
13
12
11
4B
4A
4Y
1Y
2A
2B
10 3B
description
9
8
2Y
3A
3Y
GND
These devices contain four independent 2-input
AND gates. They perform the Boolean function
Y
A • B or Y
A
B
in positive logic.
SN54HCT08 . . . FK PACKAGE
(TOP VIEW)
The SN54HCT08 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74HCT08 is characterized for
operation from –40°C to 85°C.
3
2
1
20 19
18
4A
NC
4Y
1Y
NC
2A
4
5
6
7
8
17
16
FUNCTION TABLE
(each gate)
15 NC
14
9 10 11 12 13
NC
2B
INPUTS
OUTPUT
Y
3B
A
B
H
X
L
H
L
H
L
L
X
NC – No internal connection
†
logic symbol
1
1A
2
&
3
1Y
1B
4
2A
5
6
2Y
2B
9
3A
8
10
3Y
3B
4A
4B
12
13
11
4Y
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, DB, J, N, PW, and W packages.
logic diagram (positive logic)
A
B
Y
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.
Copyright 1997, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265