SN54F38_08 Datasheet, PDF (1/5 Pages) Texas Instruments – QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS

SN54F38, SN74F38
QUADRUPLE 2ĆINPUT POSITIVEĆNAND BUFFERS
WITH OPENĆCOLLECTOR OUTPUTS
SDFS013A − MARCH 1987 − REVISED OCTOBER 1993
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
description
These devices contain four independent 2-input
NAND buffer gates with open-collector outputs.
They perform the Boolean functions Y = A • B or
Y = A + B in positive logic.
SN54F38 . . . J PACKAGE
SN74F38 . . . 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
The open-collector outputs require pullup
resistors to perform correctly. They may be
connected to other open-collector outputs to
implement active-low wired-OR or active-high
wired-AND functions. Open-collector devices are
often used to generate higher V_OH levels.
The SN54F38 is characterized for operation over
the full military temperature range of − 55°C to
125°C. The SN74F38 is characterized for
operation from 0°C to 70°C.
FUNCTION TABLE
(each gate)
SN54F38 . . . FK PACKAGE
(TOP VIEW)
1Y
3 2 1 20 19
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
L
X
X
L
OUTPUT
Y
L
H
H
NC − No internal connection
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.
Copyright  1993, Texas Instruments Incorporated
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