CD74HCT373MG4 Octal Transparent D-Type Latches by Texas Instruments

The CD74HCT373MG4 from Texas Instruments is a high-performance, CMOS logic-level octal transparent D-type latch designed for use in systems that demand robust and reliable components. This integrated circuit is a member of the high-speed CMOS HCT family, which ensures compatibility with older TTL logic while providing the benefits of CMOS technology, such as lower power consumption and reduced noise.

Featuring eight latches with three-state outputs, the CD74HCT373MG4 provides a convenient way to interface 8-bit data with systems requiring bus-driving capability. Each latch is transparent, meaning that when the latch-enable (LE) input is high, the Q outputs will follow the data (D) inputs. As soon as LE returns to low, the last data presented at the inputs is latched and held stable at the outputs, regardless of further changes at the D inputs.

The three-state outputs, which can be put into a high-impedance state, are essential for bus-oriented applications. This feature allows multiple devices to share the same data lines without the risk of contention or data corruption. The OE (Output Enable) input controls the three-state outputs and ensures that the outputs are only active when required, reducing power consumption and preventing damage to other components on the bus.

Manufactured in a 20-pin SOIC package, the CD74HCT373MG4 is designed for a wide operating voltage range of 4.5V to 5.5V, making it suitable for interfacing with both 5V logic levels and the needs of mixed-voltage systems. The device also boasts a wide operating temperature range, from -55°C to +125°C, ensuring reliable operation even in the most demanding environmental conditions.

With its fast propagation delay and low power consumption, the CD74HCT373MG4 is an excellent choice for a variety of applications, including computers, data storage, avionics, and industrial control systems. Texas Instruments' commitment to quality and performance makes this latch an indispensable component for designers looking to create stable and efficient digital systems.