ON Semiconductor MC74VHCT373ADTR2 Octal Transparent Latch

The MC74VHCT373ADTR2 is a high-performance, octal transparent latch from ON Semiconductor that combines the low power dissipation of CMOS with the high speed and drive capabilities of bipolar transistors. This integrated circuit is designed for use in applications requiring the capture and retention of multiple bits of data, with the added benefit of 3-state outputs for bus-oriented applications.

The device features eight latches with three-state outputs for bus organized systems. Each latch is D-type and has a separate D-input and Q-output. The common transparent latch enable (LE) input activates the latches. When LE is high, the Q-outputs follow the D-inputs. Conversely, when LE is low, the latches store the information that was present at the D-inputs a setup time preceding the high-to-low transition of LE.

The MC74VHCT373ADTR2 operates at a voltage range of 4.5V to 5.5V, which allows for interfacing with standard 5V logic families. This makes the device suitable for a wide range of applications, including computers, telecommunications, and instrumentation systems where high-speed, low-power latch functions are required.

With its advanced high-speed CMOS technology, the MC74VHCT373ADTR2 offers a balanced propagation delay and transition times, providing significant power savings while maintaining high-speed operation. The device also features a low input pin capacitance, which minimizes loading on the driving circuits. This IC is also equipped with bus-hold data inputs, which eliminate the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level.

ON Semiconductor's commitment to quality ensures that the MC74VHCT373ADTR2 meets the stringent requirements for reliable operation. The device is available in a TSSOP-20 package, which is ideal for space-constrained applications. The MC74VHCT373ADTR2 is also characterized for operation from -55°C to +125°C, making it suitable for even the most demanding environmental conditions.

For designers looking for a reliable, high-speed octal latch, the MC74VHCT373ADTR2 from ON Semiconductor provides an excellent solution that combines performance, power efficiency, and versatility in a compact form factor.