SN54ALS520, SN74ALS518, SN74ALS520, SN74ALS521 8-B.
Texas Instruments
SN74ALS518 - 8-BIT IDENTITY COMPARATORS
SN54ALS520, SN74ALS518, SN74ALS520, SN74ALS521 8-BIT IDENTITY COMPARATORS • Compare Two 8-Bit Words • Choice of Totem-Pole or Open-Collector Outputs .
