74HC123DB,112

Overview

The Nexperia 74HC123DB,112 is a dual retriggerable monostable multivibrator housed in a 16-lead SSOP package (SOT338-1). It operates on a supply voltage range of 2.0 V to 6.0 V with an operating temperature range of -40 °C to +125 °C. The device features Schmitt-trigger inputs for noise immunity and includes direct reset functionality. Propagation delay typically ranges from 19 ns to 83 ns depending on voltage conditions.

Feature Summary

• Dual retriggerable monostable multivibrator architecture
• Schmitt-trigger action on trigger inputs for slow signal tolerance
• Direct reset input capability to terminate output pulses
• Wide supply voltage operation from 2.0 V to 6.0 V

Applications

• Pulse width generation and timing circuits
• Frequency division and pulse stretching applications
• Debouncing switches or contacts
• Timing delays in digital logic systems

Procurement Notes

Verify the specific ordering suffix '112' against current Nexperia documentation to confirm the SSOP-16 package type. Confirm availability status as older revisions may indicate end-of-life transitions. Ensure design compliance with JEDEC standards and RoHS directives prior to procurement.

Selection Notes

Select this component when dual independent monostable circuits are required within a single package. Verify that the external timing resistor and capacitor values align with the specified pulse width formulas. Consider the 16-SSOP footprint constraints during PCB layout planning.

Part Context

This part belongs to the 74HC/HCT123 family of monostable multivibrators. It provides two identical circuits capable of generating precise output pulses triggered by edge signals. The HC variant ensures CMOS compatibility and low power consumption suitable for general-purpose digital applications.

Replacement Considerations

Public confirmed substitutes include the 74HCT123PW,118 and SN74AHCT123ADBR.