74AHC123ABQ-Q100X

Overview

The Nexperia 74AHC123ABQ-Q100X is a dual retriggerable monostable multivibrator with reset, qualified to AEC-Q100 Grade 1 for automotive use. It operates within a supply voltage range of 2.0 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features Schmitt-trigger inputs for high noise immunity and overvoltage tolerance up to 5.5 V. Packaged in DHVQFN-16 (SOT763-1), it includes side-wettable flanks for automatic optical inspection.

Feature Summary

• Dual retriggerable monostable multivibrator architecture with direct reset functionality
• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Overvoltage tolerant inputs enabling operation in mixed voltage environments
• DHVQFN package design with side-wettable flanks facilitating automated optical inspection

Applications

• Timing pulse generation circuits
• Debouncing switches or contacts
• Frequency division applications
• Pulse width modulation systems

Procurement Notes

Verify the specific suffix 'X' against the manufacturer's current ordering information to confirm packaging details such as reel size or tape specifications. Ensure the component matches the required temperature grade and package variant for your specific application constraints before finalizing procurement orders.

Selection Notes

Select this component when dual independent timing channels are required in an automotive environment. The AHC series offers higher speed compared to standard HC logic while maintaining CMOS power consumption. Verify that external timing components (REXT/CEXT) are selected to achieve the desired pulse width within the specified operating voltage range.

Part Context

This part belongs to the Nexperia 74AHC123A-Q100 family of dual retriggerable monostable multivibrators. The 'BQ' designation specifically identifies the DHVQFN16 package type (SOT763-1). The 'X' suffix typically denotes the tape and reel packaging format used for surface-mount assembly processes.

Replacement Considerations

Direct functional equivalents include the 74AHCT123ABQ-Q100X for TTL-compatible input levels. Other packages in the same family, such as SO16 (74AHC123AD-Q100) or TSSOP16 (74AHC123APW-Q100), offer pin-compatible alternatives if different form factors are required.