SCHS136F August 1997 – February 2022 CD54HC85 , CD54HCT85 , CD74HC85 , CD74HCT85
PRODUCTION DATA
- 1 Features
- 2 Description
- 3 Revision History
- 4 Pin Configuration and Functions
- 5 Specifications
- 6 Parameter Measurement Information
- 7 Detailed Description
- 8 Power Supply Recommendations
- 9 Layout
- 10Device and Documentation Support
- 11Mechanical, Packaging, and Orderable Information
Package Options
Refer to the PDF data sheet for device specific package drawings
Mechanical Data (Package|Pins)
- J|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information
2 Description
The ’HC85 and ’HCT85 are high speed magnitude comparators that use silicon-gate CMOS technology to achieve operating speeds similar to LSTTL with the low power consumption of standard CMOS integrated circuits.
These 4-bit devices compare two binary, BCD, or other monotonic codes and present the three possible magnitude results at the outputs (A > B, A < B, and A = B). The 4-bit input words are weighted (A0 to A3 and B0 to B3), where A3 and B3 are the most significant bits.
| PART NUMBER | PACKAGE(1) | BODY SIZE (NOM) |
|---|---|---|
| CD54HC85F3A | CDIP (16) | 24.38 mm × 6.92 mm |
| CD54HCT85F3A | CDIP (16) | 24.38 mm × 6.92 mm |
| CD74HC85M | SOIC (16) | 9.90 mm × 3.90 mm |
| CD74HCT85M | SOIC (16) | 9.90 mm × 3.90 mm |
| CD74HC85E | PDIP (16) | 19.31 mm × 6.35 mm |
| CD74HCT85E | PDIP (16) | 19.31 mm × 6.35 mm |
| CD74HC85NS | SO (16) | 6.20 mm × 5.30 mm |
| CD74HC85PW | TSSOP (16) | 5.00 mm × 4.40 mm |
Functional
Diagram