MC74VHC373DT

Latches Overview

The MC74VHC373DT is an octal D-type latch manufactured by onsemi, belonging to the 74VHC logic family. It features eight non-inverting D-type latches with three-state outputs in a 20-TSSOP package. The device operates within a supply voltage range of 2 V to 5.5 V and supports a maximum quiescent current of 4 µA. Propagation delay specifications are typically 14.9 ns at 3.3 V and 9.2 ns at 3.3 V. It provides high noise immunity and includes power-down protection on all inputs.

Latches Feature Summary

• Octal configuration providing eight independent D-type latches with three-state output control.
• High-speed operation characteristic of the 74VHC logic family for efficient data handling.
• Low power consumption with minimal quiescent current draw during standby states.
• Integrated power-down protection mechanisms on input pins to prevent unintended current flow.

Latches Applications

• Data storage modules requiring parallel-to-serial conversion interfaces.
• Register banks in microprocessor-based system architectures.
• Buffering applications for address and data buses in embedded systems.

Latches Procurement Notes

Verify the specific suffix 'DT' against the manufacturer's official datasheet to confirm the exact tape-and-reel packaging quantity and moisture sensitivity level. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the part number with authorized distributors to confirm current availability status, as legacy logic families may have limited stock or end-of-life implications.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required for bus holding or register functions. The 74VHC series offers superior speed compared to standard HC logic while maintaining CMOS low-power characteristics. Verify that the operating voltage range of 2 V to 5.5 V aligns with the system's power rails. Consider the 20-TSSOP package dimensions for PCB layout constraints and thermal management requirements.

Latches Part Context

This part belongs to the 74VHC series of high-speed CMOS logic devices produced by onsemi. The 74VHC373 variant specifically implements an octal D-type latch structure. It is designed for applications demanding fast switching speeds and low power dissipation. The device is compatible with standard TTL logic levels when operated at appropriate voltages, facilitating integration into mixed-voltage digital systems.

Latches Replacement Considerations

Publicly confirmed substitute part numbers include MC74VHC373DTRG and MC74VHC373MTC. These alternatives share the same logical function and pinout but may differ in packaging format or manufacturing lot specifications. Verify electrical parameters and package dimensions before substitution.