STMicroelectronics M74HC373B1 Octal D-Type Latch

The M74HC373B1 is a high-speed CMOS device that belongs to a family of octal D-type transparent latches and features low power consumption. Designed and manufactured by STMicroelectronics, this integrated circuit is characterized by its versatility and reliability in a wide array of digital applications. The M74HC373B1 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working memory due to its robust latch functionality.

This device has eight latches with three-state outputs in a 20-pin package. Each latch is D-type, meaning that the input data is captured by the latch on the rising edge of the clock input when the latch-enable (LE) input is HIGH. The data is held stable on the output when the LE input is LOW, making the device transparent. The octal latch is particularly useful when interfacing with buses, as the three-state outputs can be placed in a high-impedance state, effectively disconnecting the latch from the bus.

One of the key features of the M74HC373B1 is its high noise immunity, which is achieved by a silicon gate CMOS fabrication. This ensures stable operation in noisy environments, making it a reliable choice for complex electronic systems. The device also supports a wide operating voltage range from 2V to 6V, which provides flexibility in terms of power supply requirements and compatibility with other logic families.

Additional attributes of the M74HC373B1 include a balanced propagation delay and transition times, which contribute to its high-speed performance. The device is also designed with low power dissipation, conserving energy in power-sensitive applications. Furthermore, the M74HC373B1 is compatible with JEDEC standard no. 7A requirements, ensuring interoperability with other standard logic devices.

STMicroelectronics provides the M74HC373B1 in a DIP20 (Dual In-line Package) or SO20 (Small Outline Package), making it suitable for both through-hole and surface-mount technology (SMT) assembly processes. This flexibility in packaging allows designers to incorporate the M74HC373B1 into a variety of PCB layouts and designs. With its robust latch features and high-performance characteristics, the M74HC373B1 is an excellent choice for designers looking for a reliable and efficient octal D-type latch solution.