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 DS100...

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