The Texas Instruments ACT573 is a high-performance, octal D-type transparent latch with 3-state outputs designed to provide efficient and reliable solutions for a wide range of digital storage applications. This integrated circuit is part of Texas Instruments' Advanced CMOS Technology (ACT) family, which is renowned for its speed and low power consumption.

Key Features

• Logic Type: Octal D-Type Transparent Latch
• Output Type: 3-State
• Operating Voltage: 4.5V to 5.5V
• High-Speed Performance: Typically operates at frequencies up to 125 MHz
• Low Power Consumption: I<sub>CC reduced by 50%
• Compatibility: Inputs are Ioff supported which ensures no damaging current backflow through the device when it is powered down

Applications

The ACT573 is an ideal component for temporary data storage, and it can be used in a variety of applications, including:

• Buffer/Storage Registers
• Bus Drivers
• Address Registers
• Memory Address Latches

Design and Functionality

The device features eight D-type transparent latches with 3-state true outputs. The latches are 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 inputs at the time of the transition is latched. The 3-state outputs are controlled by the output enable (OE) input. When OE is low, the outputs are active and reflect the data that is currently latched. When OE is high, the outputs are in a high impedance state, which is particularly useful in bus-oriented applications.

Quality and Reliability

Texas Instruments is committed to delivering high-quality products. The ACT573 is no exception, with rigorous testing and quality control measures in place to ensure reliability across various conditions. The device is available in multiple package types, including the space-saving 20-pin SSOP that is ideal for applications where board space is at a premium.