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54AC521

National Semiconductor
Part Number 54AC521
Manufacturer National Semiconductor
Description 8-Bit Identity Comparator
Published Feb 15, 2007
Detailed Description www.DataSheet4U.com 54AC521 • 54ACT521 8-Bit Identity Comparator September 1998 54AC521 • 54ACT521 8-Bit Identity Com...
Datasheet PDF File 54AC521 PDF File

54AC521
54AC521

Overview
www.
DataSheet4U.
com 54AC521 • 54ACT521 8-Bit Identity Comparator September 1998 54AC521 • 54ACT521 8-Bit Identity Comparator General Description The AC/ACT521 is an expandable 8-bit comparator.
It compares two words of up to eight bits each and provides a LOW output when the two words match bit for bit.
The expansion input IA = B also serves as an active LOW enable input.
Features n n n n n n ICC reduced by 50% Compares two 8-bit words in 6.
5 ns typ Expandable to any word length Outputs source/sink 24 mA ACT521 has TTL-compatible inputs Standard microcircuit Drawing (SMD) 54AC521: 5962-90985 54ACT521: 5962-89793 Logic Symbols Connection Diagram Pin Assignment for DIP and CERPACK DS100291-1 IEEE/IEC DS100291-2 Pin Assignment for LCC DS100291-4 DS100291-3 Pin Descriptions Pin Names A0–A7 B0–B7 TA = B OA = B Word A Inputs Word B Inputs Expansion or Enable Input Identity Output Description FACT™ is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semicondu...


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