The CD74HCT85M is a high-speed CMOS logic 4-bit magnitude comparator designed and manufactured by Texas Instruments. This integrated circuit is engineered to compare two 4-bit words and provide outputs that dictate the magnitude relationship between them. The CD74HCT85M is a part of the HCT family, which means it is compatible with standard CMOS outputs and TTL input logic levels, ensuring ease of use in a wide range of digital applications.

Key Features:

• Logic Type: 4-Bit Magnitude Comparator
• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -55°C to 125°C
• Package / Case: SOIC-16
• Logic Family: HCT
• Propagation Delay Time: 18ns at 4.5V
• Output Current: ±4mA

Functional Description:

The CD74HCT85M performs the function of comparing two binary numbers (A and B) and indicating whether A is greater than, less than, or equal to B. It has three outputs, namely A>B, A=B, and A<B, which represent the three possible states of comparison. The device has two additional inputs for cascading purposes, allowing for the expansion of the comparison capability to 8, 12, 16 bits, or more by connecting multiple comparators in series.

Applications:

Suitable for a broad range of digital applications, the CD74HCT85M is commonly used in systems that require digital comparison, such as:

• Microprocessor or microcontroller systems
• Binary sorting algorithms
• Computers and peripherals
• Test and measurement equipment

Quality and Reliability:

Texas Instruments is renowned for its commitment to quality and reliability. The CD74HCT85M is no exception, offering stable functionality over its entire operating temperature range and adhering to the stringent standards that Texas Instruments is known for. Whether you are designing a consumer product or industrial equipment, the CD74HCT85M provides the performance and reliability you need.