SN74AHCT123APWR

Overview

The SN74AHCT123APWR is a dual retriggerable monostable multivibrator from the Texas Instruments AHCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and features Schmitt-trigger inputs for noise immunity. The device provides two independent circuits in a 16-pin TSSOP package, with propagation delays typically ranging from 24.1 ns to 14 ns depending on load conditions. It supports output currents of up to 8 mA and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual retriggerable monostable multivibrator architecture
• Schmitt-trigger gated inputs for signal conditioning
• Compatible with standard CMOS logic families

Applications

• Pulse width modulation generation
• Timing delay circuits
• Debouncing switches

Procurement Notes

Verify the specific suffix APWR corresponds to the TSSOP-16 package and tape-and-reel orientation. Confirm RoHS compliance status and ensure the AHCT voltage compatibility matches the target system's 5V logic levels before integration.

Selection Notes

Select this component when precise timing intervals are required with retriggering capability. The AHCT series ensures compatibility with 5V CMOS systems while offering improved switching characteristics compared to older LS or HC families. Verify thermal requirements for high-frequency operation.

Part Context

This part belongs to the SN74AHCT123A series of dual retriggerable monostable multivibrators. It shares functional similarities with other members like the SN74AHC123 but differs in input threshold voltages optimized for 5V CMOS operation. The APWR designation indicates surface-mount packaging suitable for automated assembly processes.

Replacement Considerations

SN74AHCT123ADBR is listed as a similar alternative by manufacturers.