NXP 74HC85D 4-bit Magnitude Comparator

The NXP 74HC85D is a high-speed Si-gate CMOS device designed to provide a comparison of two 4-bit binary, BCD, or other monotonic codes and present the three possible magnitude results. This integrated circuit is part of the 74HC/HCT family, known for its robust performance and compatibility with TTL (Transistor-Transistor Logic) levels.

The 74HC85D features four magnitude comparator sections, each with two 4-bit words (A and B) inputs, and three outputs that indicate less than (<), equal to (=), and greater than (>) conditions. These outputs can be connected to the inputs of the next comparator in a series for the comparison of words longer than four bits.

Key Features:

• Logic Type: 4-bit Magnitude Comparator
• Supply Voltage Range: 2.0 to 6.0 V
• Operating Temperature: -40°C to +125°C
• Package: SOIC-16
• Logic Case Style: SOIC
• No. of Pins: 16 pins
• Propagation Delay: Typically 8ns at 5V
• Power Dissipation: Low power consumption
• Compatibility: TTL input level compatible

The 74HC85D can be used in a variety of applications that require digital comparison, including digital data processing systems, computers, portable electronics, and control systems. Its ability to operate across a wide range of voltages and temperatures makes it versatile for use in different environments and systems.

With its standard SOIC-16 package, the 74HC85D is easy to integrate into PCB designs and is suitable for automated surface-mount assembly processes. Its low power consumption and fast propagation delay characteristics make it ideal for battery-operated devices and high-speed digital systems, ensuring efficient and reliable performance in a compact form factor.

Overall, the NXP 74HC85D is a reliable and functional choice for designers looking to implement magnitude comparison in their digital logic circuits with the assurance of quality and performance that comes with NXP's reputation in the semiconductor industry.