SN54ALS38B_14 Datasheet, PDF (1/16 Pages) Texas Instruments – QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS WITH OPEN-COLLECTOR OUTPUTS

SN54ALS38B, SN74ALS38B
QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS
WITH OPEN-COLLECTOR OUTPUTS
SDAS196B – APRIL 1982 – REVISED DECEMBER 1994
• 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-NAND buffers with open-collector
outputs. They perform the Boolean functions
Y = A • B or Y = A + B in positive logic. The
open-collector outputs require pullup resistors to
perform correctly. These outputs may be
connected to other open-collector outputs to
implement active-low wired-OR or active-high
wired-AND functions. Open-collector devices
often are used to generate higher V_OH levels.
The SN54ALS38B is characterized for operation
over the full military temperature range of – 55°C
to 125°C. The SN74ALS38B is characterized for
operation from 0°C to 70°C.
FUNCTION TABLE
(each gate)
SN54ALS38B . . . J PACKAGE
SN74ALS38B . . . D OR N PACKAGE
(TOP VIEW)
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
14 V_CC
13 4B
12 4A
11 4Y
10 3B
9 3A
8 3Y
SN54ALS38B . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
1Y 4
18 4A
NC 5
17 NC
2A 6
16 4Y
NC 7
15 NC
2B 8
14 3B
9 10 11 12 13
INPUTS
A
B
H
H
OUTPUT
Y
L
NC – No internal connection
L
X
H
X
L
H
logic symbol^†
1
1A
&
2
1B
4
2A
5
2B
9
3A
10
3B
12
4A
13
4B
3
1Y
6
2Y
8
3Y
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, J, and N packages.
logic diagram (positive logic)
1
1A
2
1B
4
2A
5
2B
9
3A
10
3B
12
4A
13
4B
3
1Y
6
2Y
8
3Y
11
4Y
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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Copyright © 1994, Texas Instruments Incorporated
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