SN74LVC1G123DCUR

Overview

The SN74LVC1G123DCUR is a single retriggerable monostable multivibrator from the LVC logic series, housed in an 8-pin VSSOP package. It operates within a supply voltage range of 1.65 V to 5.5 V and supports standard voltages including 1.8 V, 2.5 V, 3.3 V, and 5 V. The device features a maximum propagation delay of 18.6 ns and a maximum quiescent current of 20 µA. Output drive capability is specified at 32 mA for both high and low states. It functions across an extended temperature range from -40°C to +125°C.

Feature Summary

• Retriggerable operation allows output pulse extension up to 100% duty cycle upon subsequent triggers.
• Schmitt trigger inputs on A and B terminals provide noise immunity and handle slow input transition rates without jitter.
• Supports mixed-mode voltage operation with all ports accepting voltages up to 5.5 V while operating at lower VCC levels.
• Includes glitch-free power-on reset on outputs and Ioff support for partial power-down and hot-insertion protection.

Applications

• Audio and video receivers
• Blu-ray players and home theater systems
• Digital cameras (DVC)
• GPS personal navigation devices
• Solid-state drives (SSD)

Procurement Notes

Verify the complete part number against official Texas Instruments documentation to ensure correct suffix identification. Confirm that the specific package variant matches design requirements. Cross-reference electrical specifications with the latest datasheet revision to account for potential updates. Ensure compatibility with system voltage levels and thermal constraints before integration.

Selection Notes

Select this component when a compact, single-channel timing solution is required for low-voltage digital systems. The wide supply voltage range facilitates interface between different logic families. Consider the Schmitt trigger inputs for environments with noisy signals or slow-rising edges. Verify that the external RC timing components meet the desired pulse width requirements and temperature stability needs.

Part Context

This device belongs to the SN74LVC1G123 family of single retriggerable monostable multivibrators. It is designed for applications requiring precise timing control in space-constrained designs. The LVC series offers improved performance over previous generations with lower power consumption and faster switching speeds suitable for modern portable and computing electronics.

Replacement Considerations

SN74LVC1G123DCTT