74LVC373AMTR

Latches Overview

The STMicroelectronics 74LVC373AMTR is an octal D-type transparent latch featuring 3-state outputs, housed in a 20-SOIC package. It operates within a supply voltage range of 1.65V to 3.6V and supports inputs up to 5.5V. The device provides symmetrical output impedance with drive currents of ±24mA at 3.0V to 3.6V. Propagation delay is maximized at 8.2ns at 3.6V with 50pF load. It includes power-down protection on inputs and outputs, ensuring high impedance when VCC is zero.

Latches Feature Summary

• Features 5-volt tolerant inputs and outputs for direct interfacing with mixed logic environments.
• Includes power-down protection on both inputs and outputs to maintain high impedance states during low-power conditions.
• Provides symmetrical output impedance characteristics for balanced signal transmission.

Latches Applications

• High-speed data buffering in digital systems
• Interface translation between 3.3V CMOS and 5V TTL/NMOS components
• PCI bus level applications requiring guaranteed drive levels

Latches Procurement Notes

Verify the specific ordering suffix 'AMTR' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 20-SOIC mechanical dimensions align with the target PCB footprint specifications. Ensure the component meets RoHS compliance standards if applicable to the manufacturing environment.

Latches Selection Notes

Select this component for designs requiring octal latching with 3-state control in low-voltage environments. It is suitable for applications needing direct compatibility with 5V logic signals while operating at lower core voltages. Consider the propagation delay specifications relative to system timing requirements.

Latches Part Context

This part belongs to the 74LVC series of low-voltage CMOS logic devices. It is functionally compatible with the standard 74LS373 pinout but offers improved speed and lower power consumption. The device utilizes sub-micron silicon gate technology for enhanced performance in portable and battery-operated electronics.

Latches Replacement Considerations

Direct substitutes include SN74LVC373ADWR from Texas Instruments and MC74LCX373DWR2G from onsemi. Verify pin compatibility and electrical specifications before substitution.

Latches FAQ

What is the maximum input voltage supported by the 74LVC373AMTR?

The device supports input voltages up to 5.5V, allowing it to interface directly with 5V logic families.

How does the device behave when VCC is removed?

Power-down protection ensures that inputs and outputs remain in a high-impedance state when VCC is zero, preventing current leakage.