SN74HCT373AN

Overview

The SN74HCT373AN is an octal transparent D-type latch featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range of -40°C to 85°C. The device utilizes CMOS HCT technology for compatibility with TTL-driven interfaces. It is housed in a 20-pin DIP package.

Feature Summary

• Octal configuration providing eight independent D-type latches
• Three-state outputs allowing direct bus driving connections
• Transparent latch operation where output follows input when enabled
• CMOS HCT technology ensuring TTL logic level compatibility

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory register implementations
• Temporary storage of digital data in processing systems
• Interface buffering between microprocessors and peripheral devices

Procurement Notes

Verify the specific suffix 'AN' against the manufacturer's current datasheet to confirm pinout and electrical specifications match your design requirements. Ensure the component meets RoHS compliance standards if required by your manufacturing process. Cross-reference the package type to ensure mechanical fit within your assembly constraints.

Selection Notes

Select this component when an octal latch with high-impedance states is required for bus applications. The HCT series ensures compatibility with standard 5V logic families. Consider the DIP package for prototyping or through-hole designs where surface mount options are not feasible. Verify voltage levels align with system power supplies.

Part Context

This part belongs to the SN74HCT family of logic integrated circuits from Texas Instruments. The HCT series is designed to interface directly with transistor-transistor logic (TTL) circuits while offering CMOS low power consumption. The SN74HCT373 specifically provides octal latching capabilities with tri-state control for efficient data management in digital systems.

Replacement Considerations

Compatible substitutes include SN74HC373 variants, though HC technology may require different voltage considerations compared to HCT. Other manufacturers produce equivalent octal latches such as the MC16L373 or HD74HC373. Verify pin compatibility and electrical characteristics before substitution.