SN54ALS33A_15 Datasheet, PDF (1/9 Pages) Texas Instruments – QUADRUPLE 2-INPUT POSITIVE-NOR BUFFERS WITH OPEN-COLLECTOR OUTPUTS

SN54ALS33A, SN74ALS33A
QUADRUPLE 2ĆINPUT POSITIVEĆNOR BUFFERS
WITH OPENĆCOLLECTOR OUTPUTS
SDAS034C − APRIL 1982 − REVISED FEBRUARY 2009
D 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-NOR buffers with open-collector outputs.
Open-collector outputs require resistive pullup to
perform correctly. They can deliver higher V_OH
levels and commonly are used in wired-AND
applications. These devices perform the Boolean
functions Y = A • B or Y = A + B in positive logic.
The SN54ALS33A is characterized for operation
over the full military temperature range of − 55°C
to 125°C. The SN74ALS33A is characterized for
operation from 0°C to 70°C.
FUNCTION TABLE
(each gate)
INPUTS
A
B
OUTPUT
Y
H
X
L
X
H
L
L
L
H
SN54ALS33A . . . J PACKAGE
SN74ALS33A . . . D OR N PACKAGE
(TOP VIEW)
1Y 1
1A 2
1B 3
2Y 4
2A 5
2B 6
GND 7
14 V_CC
13 4Y
12 4B
11 4A
10 3Y
9 3B
8 3A
SN54ALS33A . . . FK PACKAGE
(TOP VIEW)
1B
3 2 1 20 19
4
18
4B
NC ₅
17 ^NC
2Y ₆
16 4A
NC 7
15 NC
2A 8
14 3Y
9 10 11 12 13
NC − No internal connection
logic symbol^†
logic diagram (positive logic)
2
1A
≥1
3
1B
5
2A
6
2B
8
3A
9
3B
11
4A
12
4B
1
1Y
4
2Y
10
3Y
13
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.
2
1A
3
1B
5
2A
6
2B
8
3A
9
3B
11
4A
12
4B
1
1Y
4
2Y
10
3Y
13
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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