SN74AHC123APWRG4

Overview

The SN74AHC123APWRG4 is a dual retriggerable monostable multivibrator from the Texas Instruments SNx4AHC123A series. It operates within a supply voltage range of 2V to 5.5V and features Schmitt-trigger circuitry on A, B, and CLR inputs for slow input transition rates. The device supports edge triggering from active-high or active-low gated logic inputs and provides glitch-free power-up reset on outputs. It is housed in a TSSOP-16 package.

Feature Summary

• Dual retriggerable monostable multivibrators designed for 2V to 5.5V VCC operation
• Schmitt-trigger circuitry on A, B, and CLR inputs for slow input transition rates
• Edge triggered from active-high or active-low gated logic inputs
• Glitch-free power-up reset on outputs

Applications

• Pulse generation circuits
• Timing delay applications
• Frequency division circuits
• Widowmaker timer circuits

Procurement Notes

Verify the specific ordering suffix 'G4' indicates RoHS compliance and green material status as per TI documentation. Confirm the package type matches the required PCB footprint. Ensure the operating temperature range meets system requirements. Check for any recent lifecycle changes or obsolescence notices directly from the manufacturer.

Selection Notes

Select this component when dual independent monostable multivibrators are needed with Schmitt-trigger inputs for noise immunity. Consider the wide supply voltage range suitable for various digital logic families. Evaluate external timing components for desired pulse duration. Verify thermal performance if high ambient temperatures are expected.

Part Context

This part belongs to the SNx4AHC123A family of dual retriggerable monostable multivibrators. It shares functional characteristics with other members like SN74AHC123ADBR and SN74AHC123ADR but differs in packaging. The 'PW' suffix denotes the TSSOP package, while 'G4' signifies environmental compliance.

Replacement Considerations

SN74AHC123ADBR (SSOP-16), SN74AHC123ADR (SOIC-16), SN74AHC123ADGVR (TVSOP-16). Verify pin compatibility and package dimensions before substitution.