SN74F373N

Overview

The SN74F373N is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the F (FAST) logic series. It features eight non-inverting outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides a low-level output current of 32 mA and a high-level output current of -3 mA at 5 V. Propagation delay is specified at 7 ns under 5 V conditions. It supports through-hole mounting in a PDIP-20 package and functions reliably across an operating temperature range from 0°C to +70°C.

Feature Summary

• Octal transparent latching architecture with independent data input and enable control
• High-speed switching performance characteristic of the FAST logic family
• Robust low-level sink current capability for driving heavy loads

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory register storage
• Temporary data holding in digital processing systems

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to confirm pinout compatibility and electrical specifications. Ensure the procurement source provides valid RoHS compliance information as required for the application environment. Cross-reference datasheet revisions to guarantee functional equivalence with existing system designs before finalizing orders.

Selection Notes

Select this component when fast propagation delays are critical for system timing requirements. The standard TTL-compatible input levels simplify interface design with other logic families. Consider the PDIP-20 package constraints regarding board space and thermal dissipation capabilities during the layout phase.

Part Context

This device belongs to the SN74F373 product line, representing a standard octal latch configuration within the broader Texas Instruments logic portfolio. It serves as a fundamental building block for sequential logic applications requiring rapid data capture and storage without complex programming overhead.

Replacement Considerations

The SN74F573N is functionally identical but utilizes a broadside pinout configuration. Verify pin mapping differences carefully to ensure physical compatibility with existing PCB footprints before substituting.