ON Semiconductor MC74AC573 Octal Latch

The MC74AC573 is a high-performance, octal transparent latch integrated circuit from ON Semiconductor, renowned for its reliability and efficiency in a wide range of digital applications. This device is part of the AC series, which is fabricated with advanced CMOS technology to achieve high-speed operation while maintaining CMOS low power dissipation.

Featuring eight latches with three-state outputs, the MC74AC573 is designed to be used as a temporary storage device for eight-bit data. It can also be utilized as a buffered output type latch which operates in a transparent mode when the Latch Enable (LE) input is high. When the LE is taken low, the data that was present at the inputs at the time of the transition is retained at the outputs until the LE is returned high again.

The device also includes an Output Enable (OE) feature, which, when high, forces the outputs to assume a high impedance state. This state is crucial for allowing multiple devices to be connected to a common bus line without the risk of bus contention. When OE is low, the device's internal latches are presented at the outputs, allowing for seamless data flow in a controlled manner.

Key specifications of the MC74AC573 include:

• Logic Type: Octal Transparent Latch
• Number of Circuits: 8
• Output Type: 3-State
• Operating Voltage Range: 2V to 6V
• Current - Output High, Low: 24mA, 24mA
• Propagation Delay Time: 4.5ns at 5V
• Operating Temperature: -40°C to 85°C

The MC74AC573 is available in multiple package types, including the standard DIP and SOIC, which are suitable for a variety of board layouts and assembly techniques. This device is commonly used in applications such as memory address latching, data storage, and bus interface, where the integrity and stability of data are of paramount importance.

ON Semiconductor's commitment to quality ensures that the MC74AC573 meets stringent standards, providing designers with a robust and dependable component for their digital systems.