INTEGRATED CIRCUITS 74F521 8-bit identity comparator Product specification IC15 Data Handbook 1990 May 15 Philips Semiconductors Philips Semiconductors Product specification 8-bit identity comparator 74F521 FEATURES • Compares two 8-bit words in 6.
5ns typical • Expandable to any word length DESCRIPTION The 74F521 is an expandable 8-bit comparator.
It compares two words of up to 8 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.
TYPICAL PROPAGATION DELAY 7.
0ns TYPICAL SUPPLY CURRENT (TOTAL) 24mA PIN CONFIGURATION IA=B 1 A0 B0 A1 B1 A2 B2 A3 B3 2 3 4 5 6 7 8 9 20 VCC 19 QA=B 18 B7 17 A7 16 B6 ...

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