74AHC123APW-Q100J

Overview

The Nexperia 74AHC123APW-Q100J is a dual retriggerable monostable multivibrator with reset, qualified to AEC-Q100 Grade 1. It operates on a supply voltage of 2.0 V to 5.5 V and features Schmitt-trigger inputs for high noise immunity. The device provides independent timing control via external components (REXT and CEXT) and supports direct pulse termination through the nRD input. Packaged in a 16-TSSOP format, it ensures reliable performance across an ambient temperature range of -40 °C to +125 °C.

Feature Summary

• Dual independent monostable circuits with edge-triggered inputs and active HIGH/LOW outputs
• Retriggerable functionality allowing output pulse extension up to 100% duty factor
• Direct reset capability via LOW-going edge on nRD input to terminate output delay
• Overvoltage tolerant inputs enabling operation as translators in mixed voltage environments

Applications

• Automotive electronic systems requiring AEC-Q100 Grade 1 qualification
• Pulse width modulation and timing generation circuits
• Frequency division and digital timing applications
• Debouncing switches or generating single pulses from mechanical triggers

Procurement Notes

Verify the specific ordering suffix matches the required package variant and temperature grade. Confirm that the automotive qualification status aligns with target application requirements. Ensure compatibility with existing PCB footprint specifications for the TSSOP16 package before finalizing procurement orders.

Selection Notes

Select this component when dual independent monostable functions are required within a single package. Consider the wide supply voltage range and overvoltage tolerance for interfacing with different logic levels. Verify that the TSSOP16 package dimensions fit the available board space constraints.

Part Context

This part belongs to the Nexperia 74AHC123A-Q100 family, which includes variants like the 74AHCT123A-Q100. The family offers multiple package options including SO16 and DHVQFN16. All variants share the same core functional characteristics but differ in physical packaging and specific electrical parameter tolerances defined by the manufacturer.

Replacement Considerations

Public confirmed substitute part numbers include SN74AHCT123ADBR from Texas Instruments.