ON Semiconductor MC74VHCT573ADTRG Octal Latch

The MC74VHCT573ADTRG from ON Semiconductor is an advanced high-speed CMOS octal latch with three-state outputs. It is designed to interface directly with high-speed microprocessors and can be utilized in a wide range of applications including memory address latching, data storage, and multiplexing. This device is characterized for operation from -55°C to 125°C, making it suitable for industrial and automotive environments where reliability and performance are critical.

This octal latch is fabricated with silicon gate CMOS technology which ensures that it has the high noise immunity and low power consumption characteristic of CMOS integrated circuits, along with speeds similar to LSTTL devices. It possesses an 8-bit memory which is ideal for storing data. The MC74VHCT573ADTRG is equipped with eight latches with three-state standard outputs. The three-state feature allows the outputs to be set to a high impedance state, effectively disconnecting the output from the circuit, which is a useful feature when interfacing with bus-oriented systems.

The latch operation is governed by two control inputs: the Latch Enable (LE) and the Output Enable (OE). When LE is held high and OE is held low, the latches transparently pass data from the inputs to the outputs. If LE is taken low, the data that was present on the inputs at that time is captured and held in the latches, even if the input changes afterward. The outputs can be disabled by taking OE high, placing the outputs in a high impedance state.

Offered in a TSSOP-20 package, the MC74VHCT573ADTRG provides a compact footprint for space-constrained applications. It is also compatible with TTL levels, allowing for easy integration into existing designs without the need for level-shifting devices. The device's performance is guaranteed over a voltage range of 4.5V to 5.5V, providing stable operation in systems with a 5V power supply.

With its robust design and versatile functionality, the MC74VHCT573ADTRG from ON Semiconductor is an excellent choice for designers looking for a reliable and efficient octal latch solution.