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4-bit Magnitude Comparator IC - 74HC85
4-bit Magnitude Comparator IC - 74HC85
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- Serial or parallel expansion without extra gating
- Magnitude comparison of any binary words
- Output capability: standard
- ICC category: MSI
4-bit Magnitude Comparator IC - 74HC85
The 74HC Series 74HC85 are high-speed Si-gate CMOS devices and are pin-compatible with low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC85 IC are 4-bit magnitude comparators that can be expanded to almost any length. They perform the comparison of two 4-bit binary, BCD, or other monotonic codes and present the three possible magnitude results at the outputs (QA>B, QA=B and QAB, IA=B and IAB = = LOW and IA=B = HIGH. For words greater than 4-bits, units can be cascaded by connecting outputs QAΒ and QA=B to the corresponding inputs of the significant comparator.
Pinout:

Package Includes:
- 1 x IC - 74HC85
Specifications:
Operating Voltage Range | 2.0 to 6.0 V |
Package | DIP−16 |
Input Current | 1 uA |
Powering Current | 160 uA |
Output Current at VCC | 4 mA |
Fan-Out | 10 LS-TTL Load |
Propagation Delay | 13 ns |
Temperature Range | -65 °C to +150 °C |
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What is 4-bit comparator IC 7485?
- The 4-bit comparator is mostly available in IC form, with the most common type being 7485. By grounding I (A>B), I (A as analog-to-digital converters (ADCs), and I (A as relaxation oscillators, this IC can be used to compare two 4-bit binary words.
What is the application of IC 7485?
- The IC 7485 compares the magnitude of two binary numbers. The two 4-bit numbers are applied to the A3,A2,A1,A0 and B3,B2,B1,B0 inputs. Where A3 and B3 are the most significant bits of the two 4-bit operands under consideration.
What is comparator used for?
- A comparator is made up of a highly specialised high-gain differential amplifier. They are commonly used in analog-to-digital converters (ADCs) and relaxation oscillators, which measure and digitise analogue signals.
This comparator IC consistently delivers accurate results when monitoring sensor outputs. I've used it in many projects, and it's been great.