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74ACT521 - 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.

Key Features

  • s ICC reduced by 50% s Compares two 8-bit words in 6.5 ns typ s Expandable to any word length s 20-pin package s Outputs source/sink 24 mA s ACT521 has TTL-compatible inputs Ordering Code: Order Number 74AC521SC 74AC521SJ 74AC521PC 74ACT521SC 74ACT521SJ 74ACT521PC Package Number M20B M20D N20A M20B M20D N20A Package.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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74AC521 • 74ACT521 8-Bit Identity Comparator November 1988 Revised November 1999 74AC521 • 74ACT521 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 s ICC reduced by 50% s Compares two 8-bit words in 6.5 ns typ s Expandable to any word length s 20-pin package s Outputs source/sink 24 mA s ACT521 has TTL-compatible inputs Ordering Code: Order Number 74AC521SC 74AC521SJ 74AC521PC 74ACT521SC 74ACT521SJ 74ACT521PC Package Number M20B M20D N20A M20B M20D N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.