General Description
The AC/ACT520 are expandable 8-bit comparators. They compare two words of up to eight bits each and provide 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
■ Compares two 8-bit words in 6.5ns typ.
■ Expandable to any word length
■ 20-pin package
■ Outputs source/sink 24mA
■ ACT520 has TTL-compatible inputs