74F521

74F521 8-Bit Identity Comparator

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74F521 8-Bit Identity Comparator

April 1988 Revised October 2000

74F521 8-Bit Identity Comparator
General Description
The 74F521 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
s Compares two 8-bit words in 6.5 ns typ s Expandable to any word length s 20-pin package

Ordering Code:
Order Number 74F521SC 74F521SJ 74F521MSA 74F521PC Package Number M20B M20D MSA20 N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.

Logic Symbols

Connection Diagram

IEEE/IEC

2000 Fairchild Semiconductor Corporation

DS009545

www.fairchildsemi.com