Product Overview: CD74HCT373E from Texas Instruments
The CD74HCT373E is a high-performance CMOS Logic Octal Transparent Latch manufactured by Texas Instruments. This integrated circuit is designed to provide high-speed, low-power operation while maintaining the drive capabilities of true TTL logic. The device is part of the 74HCT family, which is compatible with standard TTL integrated circuits, making it a versatile choice for interfacing with other TTL logic components.
Featuring eight latches with three-state outputs, the CD74HCT373E is ideal for use in temporary storage of data, buffering, and bidirectional bus-oriented applications. Each latch is controlled by a latch-enable (LE) input and an output-enable (OE) input. When LE is high, the data on the D inputs are transferred into the latch. The data is held stable when LE returns to low, effectively storing the input data. The OE input, when taken low, allows the stored data to be outputted onto the bus, while a high OE input places the outputs in a high-impedance state, effectively isolating the bus.
The CD74HCT373E operates at a voltage range of 4.5V to 5.5V, which is the typical operating range for 5V digital systems. This ensures compatibility with the majority of 5V systems without the need for level-shifting components, simplifying design and reducing component count. The device also provides a balanced propagation delay and transition times, which is crucial for maintaining timing synchronization in high-speed systems.
Furthermore, this octal latch is characterized for operation from -55°C to 125°C, making it suitable for a wide range of industrial and automotive applications that require robust performance under extreme temperature conditions. The CD74HCT373E is available in a standard 20-pin DIP (Dual In-line Package), which is easy to handle and integrate into various types of printed circuit boards.
With its combination of high-speed operation, low power consumption, and compatibility with existing TTL systems, the Texas Instruments CD74HCT373E is an excellent choice for designers looking to implement reliable and efficient data storage and bus-interface functions in their digital systems.
