74AHCT123APW-Q100J

Overview

The Nexperia 74AHCT123APW-Q100J is a dual retriggerable monostable multivibrator with reset, housed in a 16-lead TSSOP package (SOT403-1). It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features TTL input levels and includes Schmitt-trigger action for high noise immunity. Propagation delay typically reaches 5.0 ns at 5.0 V with 15 pF load capacitance. It provides active HIGH and LOW outputs and accepts direct reset signals.

Feature Summary

• Dual retriggerable monostable multivibrator architecture with independent external timing components
• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Overvoltage tolerant inputs allowing operation in mixed voltage environments up to 5.5 V
• Direct reset functionality terminates output pulses immediately upon receiving a low-going edge

Applications

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

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the automotive grade designation aligns with project reliability requirements. Ensure the TTL input logic level compatibility is suitable for the driving source voltage. Check for any recent product change notices regarding manufacturing site or material composition updates.

Selection Notes

Select this component when TTL-compatible inputs are required alongside automotive reliability standards. The AHCT series ensures compatibility with standard TTL logic families while offering improved noise margins compared to older HC variants. Verify that the external resistor and capacitor values selected fall within the recommended operating conditions for the desired pulse width duration.

Part Context

This part belongs to the Nexperia 74AHC(A)HCT123A-Q100 family of dual monostable multivibrators. It shares functional similarities with other members like the 74AHC123AD-Q100 but differs in package type and input logic thresholds. The Q100 suffix indicates automotive qualification, distinguishing it from commercial grade counterparts.

Replacement Considerations

Check for pin-compatible alternatives such as the 74AHC123AD-Q100 if SOIC packaging is preferred. Verify electrical parameter equivalence before substituting with non-Nexperia equivalents.