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SN54ALS33A Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN54ALS33A
Description  QUADRUPLE 2-INPUT POSITIVE-NOR BUFFERS WITH OPEN-COLLECTOR OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54ALS33A Datasheet(HTML) 1 Page - Texas Instruments

   
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SN54ALS33A, SN74ALS33A
QUADRUPLE 2-INPUT POSITIVE-NOR BUFFERS
WITH OPEN-COLLECTOR OUTPUTS
SDAS034B – APRIL 1982 – REVISED DECEMBER 1994
Copyright
© 1994, Texas Instruments Incorporated
1
POST 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-NOR buffers with open-collector outputs.
Open-collector outputs require resistive pullup to
perform correctly. They can deliver higher VOH
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
OUTPUT
A
B
Y
H
X
L
X
HL
L
L
H
logic symbol
logic diagram (positive logic)
2
1A
3
1B
5
2A
6
2B
8
3A
9
3B
11
4A
12
4B
1Y
1
2Y
4
3Y
10
4Y
13
≥1
1Y
3
2Y
6
3Y
8
4Y
11
1
2
1A
1B
4
5
2A
2B
9
10
3A
3B
12
13
4A
4B
† 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.
SN54ALS33A ...J PACKAGE
SN74ALS33A ...D OR N PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1Y
1A
1B
2Y
2A
2B
GND
VCC
4Y
4B
4A
3Y
3B
3A
SN54ALS33A . . . FK PACKAGE
(TOP VIEW)
32
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
4B
NC
4A
NC
3Y
1B
NC
2Y
NC
2A
NC – No internal connection
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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