HEF4585B Datasheet PDF – 4-bit Magnitude Comparator

Part Number: HEF4585B

Function: 4-bit magnitude comparator

Package: DIP, SO 16 Pin Type

Manufacturer: Nexperia, NXP Semiconductors.


HEF4585B datasheet



The HEF4585B is a 4-bit magnitude comparator that compares two 4-bit words, A and B, and determines whether A is greater than B, A is equal to B, or A is less than B. Each word has four parallel inputs (A0 to A3 and B0 to B3) with A3 and B3 being the most significant inputs.

Three outputs are provided: A greater than B (QA>B), A less than B (QA<B) and A equal to B (QA=B). Three expander inputs (IA>B, IA<B, and IA=B) allow cascading of the devices, to compare 8, 12, 16, …, bits without external gates.

Function Diagram :



1. Fully static operation

2. 5 V, 10 V, and 15 V parametric ratings

3. Standardized symmetrical output characteristics

4. Complies with JEDEC standard JESD 13-B


Other data sheets are available within the file:

4585B, 4585BP, 4585BT, HEF4585BT, HEF4585BP


HEF4585B Datasheet PDF Download

HEF4585B pdf

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