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74AC521 - 8-Bit Identity Comparator

Download the 74AC521 datasheet PDF. This datasheet also covers the 74AC variant, as both devices belong to the same 8-bit identity comparator family and are provided as variant models within a single manufacturer datasheet.

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 74AC521MTC 74AC521PC 74ACT521SC 74ACT521SJ 74ACT521MTC 74ACT521PC Package Number M20B M20D MTC20 N20A M20B M20D MTC20 N20A Package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (74AC-521SJ.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Fairchild (now onsemi)

Part Number Description
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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.

View original datasheet text
www.DataSheet4U.com 74AC521 • 74ACT521 8-Bit Identity Comparator November 1988 Revised March 2005 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.