SN74LV123ATPWRQ1

Overview

The SN74LV123ATPWRQ1 is a dual retriggerable monostable multivibrator from Texas Instruments, designed for automotive applications. It features Schmitt-trigger inputs to filter noisy signals and operates within a supply voltage range of 2 V to 5.5 V. The device provides two independent circuits in a 16-TSSOP package. Key electrical parameters include a propagation delay of 14 ns and output currents of ±12 mA. It supports a minimum pulse width of 5 ns and has a maximum quiescent current of 20 µA. The component is qualified to AEC-Q100 standards and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Dual retriggerable monostable multivibrator architecture with Schmitt-trigger inputs for noise immunity
• Automotive grade qualification compliant with AEC-Q100 standards for high reliability
• Wide operating supply voltage range supporting 2 V to 5.5 V systems
• Extended industrial temperature performance rated from -40°C to +125°C

Applications

• Automotive electronic control units requiring precise timing pulses
• Debouncing switches and pushbuttons in vehicle interfaces
• Generating fixed-duration timing intervals for system resets
• Frequency division and pulse widening in automotive communication buses

Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification status before integration. Ensure the TPWR package variant matches your PCB footprint requirements. Confirm RoHS3 compliance and REACH status align with regional manufacturing regulations. Cross-reference the manufacturer part number against official TI distribution channels to avoid counterfeit components.

Selection Notes

Select this component when automotive reliability and wide voltage operation are required. The dual circuit design allows cost-effective implementation of multiple timing functions. Verify that the 14 ns propagation delay meets your system's timing constraints. Consider the TSSOP-16 package dimensions for thermal management and board space limitations compared to SOIC alternatives.

Part Context

This part belongs to the SN74LV123 family of monostable multivibrators. The 'A' indicates enhanced specifications over previous generations. The 'T' denotes tape and reel packaging. The 'Q1' suffix signifies automotive qualification. It is part of Texas Instruments' broader LV logic portfolio designed for low-voltage digital applications.

Replacement Considerations

SN74LV123APWRQ1 is a direct pin-compatible alternative within the same automotive series. SN74LV123ADRQ1 offers the same functionality in a 16-SOIC package. Non-automotive equivalents like SN74LV123APWR lack Q1 qualification. Verify package compatibility and temperature ratings when substituting.