74FCT521 Fast CMOS 8-Bit Identity Comparator

The INTEGRATED DEVICE TECHNOLOGY (IDT) IDT54/74FCT521/A/B/C are 8-bit identity comparators built using an advanced dual metal CMOS technology. These devices 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.

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74FCT521AD	74FCT521AP	74FCT521APC	74FCT521APDT
74FCT521AS0	74FCT521ASCX	74FCT521ASO	74FCT521ASO8
74FCT521B50	74FCT521BSO	74FCT521CSO	74FCT521D
74FCT521P	74FCT521PQ	74FCT521SO	74FCT521ZATQ
74FCT521ZATSO	74FCT521ZCTQ	74FCT521ZCTSO