SN54ALS15A Datasheet, PDF (1/4 Pages) Texas Instruments – TRIPLE 3-INPUT POSITIVE-NAND GATES WITH OPEN-COLLECTOR OUTPUTS

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description
These devices contain three independent 3-input
AND gates with open-collector outputs. These
gates perform the Boolean functions Y = A•B•C or
Y = A+B+C in positive logic. 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 SN54ALS15A is characterized for operation
over the full military temperature range of − 55°C
to 125°C. The SN74ALS15A is characterized for
operation from 0°C to 70°C.
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
ABC
Y
HHH
H
LXX
L
XLX
L
XXL
L
logic symbol^†
1A ¹
1B ²
1C ¹³
2A ³
2B ⁴
2C ⁵
3A ⁹
3B ¹⁰
3C ¹¹
&
12 _1Y
6 _2Y
8 _3Y
† _{This symbol is in accordance with ANS/EEE Std 91-1984 and}
IEC Publication 617-12
Pin numbers shown are for D, J, and N packages.
SN54ALS15A, SN74ALS15A
TRIPLE 3ĆINPUT POSITIVEĆAND GATES
WITH OPENĆCOLLECTOR OUTPUTS
SDAS016A − MARCH 1984 − REVISED MAY 1986
SN54ALS15A . . . J PACKAGE
SN74ALS15 . . . D OR N PACKAGE
(TOP VIEW)
1A ₁
1B ₂
2A ₃
2B ₄
2C ₅
2Y ₆
GND ₇
14 V_CC
13 1C
12 ^1Y
11 ^3C
10 ^3B
9 ^3A
8 ^3Y
SN54ALS15A . . . FK PACKAGE
(TOP VIEW)
2A
3 2 1 20 19
4
18
1Y
NC ₅
17 ^NC
2B 6
16 3C
NC 7
15 NC
2C 8
14 3B
9 10 11 12 13
NC −No internal connection
logic diagram (positive logic)
1A
1B
1Y
1C
2A
2B
2Y
2C
3A
3B
3Y
3C
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  1986, Texas Instruments Incorporated
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