74AHC123APW,118

Overview

The Nexperia 74AHC123APW,118 is a dual retriggerable monostable multivibrator with reset in a TSSOP16 package. It operates on a supply voltage range of 2.0 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features Schmitt-trigger inputs for high noise immunity and overvoltage tolerance up to 5.5 V. Pulse width is programmed via external components (REXT and CEXT), allowing for very long pulses up to 100% duty factor. Direct reset functionality terminates output pulses immediately.

Feature Summary

• Dual retriggerable monostable multivibrator architecture
• Wide supply voltage range from 2.0 V to 5.5 V
• Overvoltage tolerant inputs up to 5.5 V
• Schmitt-trigger action at all inputs

Applications

• Pulse generation circuits
• Timing delay applications
• Debouncing switches
• Frequency division

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature rating. Confirm that the component meets RoHS compliance standards for your region. Ensure the supplier provides valid traceability documentation. Check for any recent product change notices regarding labeling or assembly processes before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel monostable solution is required within space-constrained designs utilizing TSSOP packages. Consider the AHC series for lower power consumption compared to standard HC logic. Verify input voltage levels match the CMOS requirements rather than TTL levels found in AHCT variants. Ensure external timing components are rated for the intended operating temperature range.

Part Context

This part belongs to the Nexperia 74AHC123A family of dual retriggerable monostable multivibrators. The APW suffix specifically denotes the TSSOP16 plastic thin shrink small outline package variant. It shares functional characteristics with other members of the 74AHC123A series but differs in physical footprint and pin configuration suitable for surface-mount assembly.

Replacement Considerations

Direct replacements include the 74AHCT123AD,118 for SOIC-16 packaging or the 74AHCT123APW,118 for identical TSSOP-16 form factors. Cross-vendor equivalents such as SN74AHCT123ADR from Texas Instruments may be considered if pin compatibility and electrical specifications align with system requirements.