MC74HC373AF

Latches Overview

The MC74HC373AF is an octal D-type transparent latch manufactured by onsemi, featuring three-state outputs. It operates within a supply voltage range of 2V to 6V and supports surface-mount installation in a 20-SOIC package. The device provides high-level and low-level output currents of 7.8mA each, with a propagation delay of 21ns. It functions across an extended operating temperature range from -55°C to 125°C.

Latches Feature Summary

• Octal D-type transparent latch architecture with independent data inputs
• Three-state outputs suitable for bus-oriented applications
• Extended industrial temperature rating for harsh environments

Latches Applications

• Bus-oriented memory mapping
• Registering and buffering digital signals
• Data storage in microprocessor systems

Latches Procurement Notes

Verify the specific suffix 'AF' against the official onsemi datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the component meets RoHS3 compliance requirements for your assembly process. Cross-reference the manufacturer part number with distributor catalogs to confirm current production status and availability.

Latches Selection Notes

Select this component when an octal latch with wide voltage operation and industrial temperature range is required. Compare the 21ns propagation delay and 7.8mA drive capability against system timing constraints. Consider the 20-SOIC package size for PCB layout compatibility relative to alternative packages like TSSOP or DIP.

Latches Part Context

This device belongs to the 74HC logic family, known for high-speed CMOS operation. It is functionally compatible with other 74HC373 variants but distinguished by its specific packaging and temperature rating. It serves as a standard solution for parallel data retention in digital logic circuits.

Latches Replacement Considerations

Direct substitutes include MM74HC373MTC and MC74HC373ADTG. Verify pinout compatibility and electrical parameters before substitution.