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Part Number
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SN74ALS521 |
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Manufacturer
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Texas Instruments |
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Description
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8-BIT IDENTITY COMPARATORS |
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Published
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Oct 20, 2019 |
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Detailed Description
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SN54ALS520, SN74ALS518, SN74ALS520, SN74ALS521 8-BIT IDENTITY COMPARATORS
• Compare Two 8-Bit Words • Choice of Totem-P...
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Datasheet
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SN74ALS521
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Overview
SN54ALS520, SN74ALS518, SN74ALS520, SN74ALS521 8-BIT IDENTITY COMPARATORS
• Compare Two 8-Bit Words • Choice of Totem-Pole or Open-Collector
Outputs
• SN74ALS518 and ′ALS520 Have 20-kΩ
Pullup Resistors on Q Inputs
• Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic (N)
and Ceramic (J) 300-mil DIPs
TYPE
INPUT PULLUP RESISTOR
OUTPUT FUNCTION AND
CONFIGURATION
SN74ALS518
Yes P = Q open collector
′ALS520
Yes P = Q totem pole
SN74ALS521‡
No
P = Q totem pole
‡ SN74ALS521 is identical to ′ALS688.
description
These identity comparators perform comparisons on two 8-bit binary or BCD words.
The SN74ALS518 provides P = Q outputs,...
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