74HC85 4-Bit Comparator IC (7485 IC) DIP-16 Package

The 74HC85 4-Bit Comparator IC (7485) is a high-speed CMOS device in a DIP-16 package, designed to compare two 4-bit binary words. It provides outputs for greater than, equal to, and less than conditions, making it a vital component in digital systems, microcontroller interfacing, and embedded applications.

74HC85 4-Bit Comparator IC

The 74HC85 (7485) 4-Bit Magnitude Comparator IC is a high-performance CMOS digital logic device that compares two 4-bit binary inputs (A and B). It delivers three outputs: A > B, A = B, and A < B, enabling simple and efficient implementation of comparison logic in digital circuits. Packaged in a DIP-16, it is easy to use for breadboarding, prototyping, and PCB integration.

🔹 Applications

Digital logic design and comparison operations
Sorting and priority encoder circuits
Arithmetic logic unit (ALU) implementations
Microcontroller and microprocessor interfacing
Robotics and automation systems
DIY electronics and educational kits

🔹 Precautions

Do not exceed supply voltage of 7V
Ensure proper grounding to minimize noise interference
Avoid excessive soldering heat (limit to 260°C for 10s max)
Handle with care to prevent ESD damage
Always double-check pin configuration before powering

🔹 Technical Specifications

IC Type: 4-Bit Magnitude Comparator
Package: DIP-16
Logic Family: 74HC (High-Speed CMOS)
Inputs: Two 4-bit binary words (A0–A3, B0–B3)
Outputs: A > B, A = B, A < B
Supply Voltage Range (Vcc): 2V – 6V
Typical Operating Voltage: 5V
Input Leakage Current: ±1µA max
Propagation Delay: ~15ns at 5V
Fan-out: 10 LS-TTL loads
Operating Temperature Range: -40°C to +85°C
Pin Count: 16 pins

📹 Tutorial Video

Watch 74HC85 Comparator IC Tutorial

🔹 Related Categories

🔹 Summary

The 74HC85 (7485) 4-Bit Comparator IC in DIP-16 package is a fast, reliable, and versatile logic device for comparing binary numbers in digital systems. With wide operating voltage support, low power consumption, and simple interface, it is ideal for DIY electronics, robotics, and embedded applications. A must-have for IC’s collections and digital logic projects.