SN74ACT563PW

Overview

The SN74ACT563PW is an octal transparent latch manufactured by Texas Instruments, belonging to the 74ACT logic family. It features eight D-type inputs and corresponding inverted outputs with tri-state capability. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 11.5 ns, static current of 4 uA, low-level output current of 32 mA, and high-level output current of -24 mA. It supports through-hole or surface-mount installation depending on the package variant, with an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides eight-bit data storage with transparent latch functionality for direct input-to-output transmission when enabled.
• Features tri-state outputs that allow connection to shared bus structures without signal contention.
• Delivers inverted logic outputs compatible with standard TTL and CMOS interfaces.

Applications

• Parallel data buffering in digital communication systems
• Temporary storage registers in microprocessor-based designs
• Bus holding circuits for data isolation

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and pinout compatibility. Ensure the ordering code matches the required lead time and environmental compliance standards. Cross-reference manufacturer part numbers to avoid confusion between similar variants in the ACT series.

Selection Notes

Select this component for applications requiring high-speed octal latching with tri-state control. Consider the 74ACT series performance characteristics for compatibility with existing system logic levels. Evaluate thermal management requirements based on the specified operating temperature range and power dissipation limits.

Part Context

This component is part of the broader 74ACT logic family, designed for high-speed CMOS applications. It serves as a fundamental building block for sequential logic circuits. The SN74ACT563 variant specifically addresses needs for multi-bit data retention with controlled output states in complex digital architectures.

Replacement Considerations

Compatible substitutes include SN74ACT563DWR and SN74ACT563DBR. Verify pin compatibility and electrical parameters before substitution. Ensure the alternative package meets physical space constraints.