74F521

General 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 I_A=B also serves as an active-Low enable input.

Features

• Compares two 8-bit words in 6.5ns typical
• Expandable to any word length

Block diagrams/pinning

Design support

Application Notes

AN216; Arbitration in shared resource systems (1988-07-18)

AN203; Test Fixtures for High Speed Logic (1998-04-02)

AN202; Testing and specifying FAST logic (1987-06-01)

AN2021; Thermal considerations for FAST logic products (1995-03-13)

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Disclaimers

• General product disclaimer
• Quality and reliability disclaimer