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Part Number
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SN54ALS21A |
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Manufacturer
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Texas Instruments |
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Description
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Dual 4-Input Positive-AND Gate |
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Published
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Dec 10, 2020 |
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Detailed Description
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SN54ALS21A, SN54AS21, SN74ALS21A, SN74AS21 DUAL 4ĆINPUT POSITIVEĆAND GATES
• Package Options Include Plastic
Small-Outl...
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Datasheet
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SN54ALS21A
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Overview
SN54ALS21A, SN54AS21, SN74ALS21A, SN74AS21 DUAL 4ĆINPUT POSITIVEĆAND GATES
• 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 two independent 4-input positive-AND gates.
They perform the Boolean functions Y = A • B • C • D or Y = A + B + C + D in positive logic.
The SN54ALS21A and SN54AS21 are characterized for operation over the full military temperature range of − 55°C to 125°C.
The SN74ALS21A and SN74AS21 are characterized for operation from 0°C to 70°C.
FUNCTION TABLE (each gate)
INPUTS
OUTPUT
A
B
C
D
Y
H
H
H
H
H
L
X
X
X
L
X
L
X
X
L
X
X
...
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