ON Semiconductor MC74VHCT373ADT Octal Transparent Latch

The MC74VHCT373ADT from ON Semiconductor is a high-performance, octal transparent latch integrated circuit that is designed to operate at exceptional speed while maintaining low power consumption. This device is part of ON Semiconductor's VHCT family, which is known for combining the high noise immunity of CMOS technology with the speed and drive capabilities of bipolar transistors.

The MC74VHCT373ADT features eight latches with three-state outputs for bus-oriented applications. Each latch is transparent, meaning that when the latch enable (LE) input is high, the Q outputs will follow the data (D) inputs. When LE is taken low, the data that was present at the D inputs when the transition occurred is stored in the latch, and the Q outputs will remain at this state as long as LE remains low, regardless of subsequent changes to the D inputs.

The device also includes an active-low output enable (OE) function, which, when low, allows the stored data to be presented on the outputs. When OE is high, the outputs go into a high-impedance state, which is essential for interfacing with bus lines in a multi-master environment.

With a wide operating voltage range from 4.5V to 5.5V, the MC74VHCT373ADT is compatible with TTL levels, making it suitable for use in mixed 5V and 3.3V systems. It also boasts fast propagation delay times and reduced power consumption, which are critical for high-speed data processing and low-power applications.

Manufactured in a TSSOP-20 package, the MC74VHCT373ADT is designed for surface-mount technology (SMT), which allows for efficient assembly and space-saving on printed circuit boards (PCBs). This device is typically used in a variety of digital applications, including data storage, communication systems, and complex computing machinery where reliable data latching is required.

ON Semiconductor ensures that the MC74VHCT373ADT meets stringent quality and reliability standards, making it a trusted choice for designers and engineers seeking a robust octal latch solution.