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SN74F521N - 8-Bit Identity Comparators

Download the SN74F521N datasheet PDF. This datasheet also covers the SN74F521 variant, as both devices belong to the same 8-bit identity comparators family and are provided as variant models within a single manufacturer datasheet.

General Description

These identity comparators perform comparisons on two 8-bit binary or BCD words.

They provide P = Q outputs.

55°C to 125°C.

The SN74F521 is characterized for operation from 0°C to 70°C.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SN74F521-etcTI.pdf) that lists specifications for multiple related part numbers.

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
• Compares Two 8-Bit Words • Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs description These identity comparators perform comparisons on two 8-bit binary or BCD words. They provide P = Q outputs. The SN54F521 is characterized for operation over the full military temperature range of − 55°C to 125°C. The SN74F521 is characterized for operation from 0°C to 70°C. FUNCTION TABLE INPUTS P, Q OE OUTPUT P=Q P=Q L L P≠Q X H X H H logic symbol† 1 OE 2 P0 4 P1 6 P2 8 P3 11 P4 13 P5 15 P6 17 P7 3 Q0 5 Q1 7 Q2 9 Q3 12 Q4 14 Q5 16 Q6 18 Q7 COMP 0 P 7 1P = Q 0 Q 7 19 P=Q † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.