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54ACT520 View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
54ACT520 8-Bit Identity Comparator National-Semiconductor
National ->Texas Instruments National-Semiconductor
54ACT520 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
September 1998
54AC520 54ACT520
8-Bit Identity Comparator
General Description
The ’AC/’ACT520 are expandable 8-bit comparators. They
compare two words of up to eight bits each and provide a
LOW output when the two words match bit for bit. The ex-
pansion input IA = B also serves as an active LOW enable in-
n Compares two 8-bit words in 6.5 ns typ
n Expandable to any word length
n 20-pin package
n Outputs source/sink 24 mA
n ’ACT520 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
54AC520: 5962-90916
54ACT520: 5962-89793
Logic Symbols
Pin Names
A0– A7
B0– B7
TA = B
OA = B
Word A Inputs
Word B Inputs
Expansion or Enable Input
Identity Output
FACTis a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100234
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