The SN74ALS563BDWRE4 is a high-performance, octal D-type transparent latches with 3-state outputs designed by Texas Instruments. This integrated circuit is part of the advanced low-power Schottky (ALS) family, which is renowned for its balance between speed and power consumption, making it an ideal choice for interfacing with bus-oriented systems.

Key Features

• Logic Type: Octal D-Type Latch
• Output Type: 3-State
• Number of Channels: 8
• Operating Voltage: 4.5V to 5.5V
• High-Speed Performance: Typical tpd of 15 ns
• Package: 20-SOIC

The device features eight D-type latches with 3-state output controls in a single monolithic chip, providing a high degree of flexibility for bus-oriented applications. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the levels that were set up at the D inputs.

A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the latter mode, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.

OE does not affect the internal operations of the latch. Old data can be retained or new data can be entered while the outputs are off. The SN74ALS563BDWRE4 is characterized for operation from 0°C to 70°C, making it suitable for commercial applications.

Applications

• Bus Interface Storage
• Buffer/Storage Registers
• Memory Address Registers
• Parity Checkers/Generators

With its robust design and versatile functionality, the SN74ALS563BDWRE4 from Texas Instruments is a reliable and efficient solution for a wide range of digital logic applications.