MC74VHC373DWR2G

Latches Overview

The MC74VHC373DWR2G is an octal D-type latch with 3-state outputs fabricated using silicon gate CMOS technology. It operates within a supply voltage range of 2.0 V to 5.5 V and supports an operating temperature from -40°C to +85°C. The device features balanced propagation delays, achieving typical values of 5.0 ns at 5.0 V. Quiescent supply current is maximized at 4.0 µA at 25°C. It provides high noise immunity with dynamic input voltages of 1.5 V to 3.5 V and low output noise of 0.9 V maximum.

Latches Feature Summary

• Octal transparent latch configuration with independent data inputs and non-inverting outputs controlled by latch enable and output enable signals.
• High-speed operation comparable to Bipolar Schottky TTL while maintaining low power dissipation characteristics inherent to CMOS technology.
• Outputs enter a high-impedance state when the output enable signal is active, allowing for bus-driven applications.
• Internal circuitry includes a buffer output stage designed to provide high noise immunity and stable signal transmission.

Latches Applications

• Registering and buffering digital data in high-speed logic systems
• Interfacing between different voltage domains due to wide supply range compatibility
• Bus-oriented memory and I/O systems requiring tri-state control

Latches Procurement Notes

Verify the specific ordering suffix corresponds to the SOIC-20 package and tape & reel shipping format. Confirm RoHS compliance and lead-free status as indicated by the 'G' suffix. Ensure moisture sensitivity level 3 handling procedures are followed during assembly to prevent damage.

Latches Selection Notes

Select this component for designs requiring octal latching with tri-state capability in a compact surface-mount package. The VHC series offers superior speed compared to standard AC/ACT families while maintaining low power consumption. Verify that the 2.0 V to 5.5 V supply range aligns with the system's power architecture.

Latches Part Context

This part belongs to the MC74VHC373 family of advanced high-speed CMOS logic devices. It is functionally compatible with other standard logic families but optimized for lower voltage operation and higher speed. The device is manufactured by onsemi and is available in SOIC-20 and TSSOP-20 packages.

Latches Replacement Considerations

MC74VHCT373ADWR2G (TTL-compatible input version)

Latches FAQ

What is the difference between MC74VHC373 and MC74VHCT373A?

The MC74VHC373 inputs are compatible with standard CMOS levels, whereas the MC74VHCT373A inputs are compatible with TTL levels. Both share the same pinout and functionality otherwise.

How does the device handle power-down conditions?

The device provides power-down protection, preventing device destruction caused by supply voltage mismatches or hot insertion scenarios.