The 74ACT573 from STMicroelectronics is a high-speed CMOS octal latch with 3-state outputs designed for use in bus-oriented applications. This integrated circuit is part of the 74ACT series, which is known for its high-speed performance while maintaining the power efficiency of CMOS technology.

Key Features

• High-Speed Operation: The 74ACT573 offers a significant improvement in speed, with propagation delay times far less than those of the standard 74LS series.
• Octal D-Type Latch: It features an 8-bit D-type latch with 3-state output buffers. The latch is transparent with the latch enable (LE) input high and stores the data presented on its inputs when LE is taken low.
• 3-State Outputs: The outputs can be put in a high-impedance state, allowing for bus-oriented applications where multiple outputs can share the same connection.
• Bus Compatible: The inputs and outputs are designed to withstand -0.5V to +7.0V, ensuring compatibility with multiple bus management systems.
• Low Power Consumption: It combines the high speed of the 74ACT series with the low power features of CMOS technology, resulting in a reduced power footprint for your circuits.

Applications

The 74ACT573 is ideal for applications that require high-speed data storage and transfer while minimizing power consumption. It is commonly used in:

• Bus interface/storage
• Data storage and retrieval systems
• Communication systems
• Embedded systems
• Microprocessor or microcontroller interface

Technical Specifications

The device operates from a 4.5V to 5.5V power supply and is characterized for operation from -55°C to 125°C, making it suitable for industrial temperature ranges. The 74ACT573 is available in multiple package options, including DIP, SOP, and TSSOP, providing flexibility for various PCB layouts and assembly processes.

For more detailed information, please refer to the official datasheet of the 74ACT573 from STMicroelectronics.