SN74F373DBR

Overview

The SN74F373DBR is an octal D-type transparent latch manufactured by Texas Instruments, belonging to the 74F logic series. It features eight non-inverting outputs with three-state capability and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides a low-level output current of 24 mA and a high-level output current of -3 mA. Propagation delay is specified at 8.6 ns. It is housed in a 20-SSOP package and supports surface-mount installation.

Feature Summary

• Transparent latch operation allows data to pass directly from input to output when the latch enable signal is active.
• Three-state outputs facilitate direct connection to system buses for efficient data transfer management.
• High drive capability ensures reliable signal integrity across digital circuits.

Applications

• Parallel-to-serial data conversion systems
• Register file storage in microprocessor interfaces
• Bus-oriented memory mapping applications

Procurement Notes

Verify the specific ordering suffix to confirm the package type and environmental compliance status. Ensure the component matches the required 20-SSOP form factor for your PCB layout. Confirm RoHS3 compliance if restricted substances are a constraint for your manufacturing process.

Selection Notes

Select this component when fast propagation speeds are required compared to standard TTL or LS families. The SSOP package is suitable for space-constrained surface-mount designs. Verify that the 5V operating voltage aligns with your system's power distribution network.

Part Context

This part belongs to the Texas Instruments 74F (FAST) logic family, known for high-speed performance. It serves as a functional equivalent to other octal latches but offers faster switching characteristics than legacy variants like the 74LS series.

Replacement Considerations

SN74F373DR is available as a SOIC package alternative. SN74F373N offers a PDIP through-hole option. SN74F373NSR provides a narrow SOIC variant.