SN74HC573ADWG4

Overview

The SN74HC573ADWG4 is an octal transparent D-type latch with three-state outputs manufactured by Texas Instruments. It belongs to the HC logic series and operates within a supply voltage range of 2 V to 6 V. The device features eight channels in a 20-pin SOIC package, designed for through-hole or surface-mount installation. Key electrical parameters include a propagation delay of 40 ns at 4.5 V and 34 ns at 6 V, with a maximum static current of 8 uA. Output drive capabilities are specified at 32 mA low-level and -7.8 mA high-level current. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Octal configuration providing eight independent D-type latches within a single integrated circuit
• Three-state output architecture enabling direct bus system interfacing and signal isolation
• Transparent data transfer mode allowing input signals to pass directly to outputs when enabled

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory address latching
• General-purpose register applications in digital systems

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and package dimensions. Ensure the procurement channel provides valid traceability for automotive or industrial grade requirements if applicable. Cross-reference the ordering information with the latest datasheet revision to avoid discrepancies in electrical specifications or environmental compliance status.

Selection Notes

Select this component for designs requiring multiple parallel data storage elements with shared control lines. The HC series offers standard CMOS performance suitable for general-purpose logic applications. Consider the SOIC-20 package constraints regarding board space and thermal dissipation. Verify that the system voltage aligns with the 2 V to 6 V operational range to ensure correct switching thresholds and output drive strength.

Part Context

This part is a member of the Texas Instruments SN74HC573A family of octal latches. It shares functional characteristics with other variants in the series but differs in packaging and specific manufacturing revisions. The device is categorized under logic ICs and serves as a fundamental building block for sequential logic circuits requiring data retention and controlled output states.

Replacement Considerations

SN74HC573ADWRG4