The CD74HC688PWT is a high-performance, CMOS integrated circuit from Texas Instruments, designed to offer precision 8-bit magnitude comparator functionality. This IC is part of the HC family, which is known for its high-speed operation comparable to the equivalent LSTTL while maintaining the CMOS low power dissipation.

Key Features

• Logic Type: 8-Bit Magnitude Comparator
• Supply Voltage Range: 2V to 6V
• Operating Temperature: -55°C to 125°C
• Package / Case: TSSOP-20
• Logic Family: HC
• Propagation Delay Time: 13ns at 5V
• Output Type: Differential
• Mounting Type: Surface Mount

Functionality

The CD74HC688PWT compares two 8-bit binary or BCD words and provides a high-level output voltage when the two words match exactly. The device has a total of 16 inputs (P0-P7, Q0-Q7) where two sets of eight inputs each are designated for the two words to be compared. An additional input is provided for cascading purposes, allowing the expansion of the comparison length virtually without limit.

Applications

This comparator is suitable for a wide range of applications across various industries. It can be used in microprocessor systems for address decoding, memory block decoding, and data routing applications. Its high-speed operation makes it ideal for use in systems that require fast and accurate data comparisons, such as:

• Computer systems
• Data communications
• Instrumentation
• Control systems

Quality and Reliability

Texas Instruments is known for its commitment to quality and reliability. The CD74HC688PWT is no exception, with its robust design and stringent quality control, ensuring reliable performance in the most demanding environments. The device is also RoHS compliant, adhering to environmental standards and regulations.