TC74ACT521F comparator equivalent, 8-bit equality comparator.
* High speed: tpd = 6.4 ns (typ.) at VCC = 5 V
* Low power dissipation: ICC = 8 μA (max) at Ta = 25°C
* Compatible with TTL outputs: VIL = 0.8 V (max)
VIH = 2.
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