SN74ACT563DWR

The SN74ACT563DWR from Texas Instruments is an octal D-type transparent latch designed for digital logic applications. This component features 3-state inverted outputs that can drive bus lines directly, offering flexibility in system design. It operates within a supply voltage range of 4.5V to 5.5V, with inputs capable of accepting voltages up to 5.5V, making it compatible with TTL logic levels.

The latch has a flow-through architecture, which helps optimize PCB layout. The output-enable (OE) input controls the state of the eight outputs, allowing them to be in a normal logic state or a high-impedance state. This high-impedance state is crucial for bus-oriented applications as it prevents the outputs from loading or driving the bus lines significantly. Old data can be retained or new data entered while the outputs are in the high-impedance state.

This specific part, the SN74ACT563DWR, comes in a 20-SOIC (Surface Mount) package with a standard operating temperature range of -40°C to 85°C. Its circuit configuration is 8:8, meaning it handles 8 data bits with 8 outputs, and it functions as a single independent latch circuit.

Key electrical characteristics include a maximum propagation delay of 8.5 ns at 5V and an output current capability of 24mA. The 'ACT563 devices are suitable for applications requiring efficient data latching and bus interfacing.