74HCT123DB,118

Multivibrators Overview

The Nexperia 74HCT123DB,118 is a dual retriggerable monostable multivibrator with reset housed in an SO16 (SOT109-1) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features TTL-compatible input levels and includes Schmitt-trigger action on trigger inputs for noise immunity. Propagation delays reach up to 77 ns at maximum operating conditions.

Multivibrators Feature Summary

• Dual independent monostable circuits with direct reset functionality
• Retriggerable operation allowing pulse extension up to 100% duty factor
• Schmitt-trigger inputs provide tolerance to slow rise and fall times
• Built-in input clamp diodes enable interfacing with voltages exceeding VCC

Multivibrators Applications

• Timing generation and pulse width modulation
• Debouncing switches or contacts
• Frequency division and pulse stretching

Multivibrators Procurement Notes

Verify the specific ordering suffix against current Nexperia documentation to confirm package type and temperature grade. Confirm RoHS compliance status as required by project specifications. Check for any product change notices regarding assembly or labeling updates before finalizing procurement plans.

Multivibrators Selection Notes

Select this component when dual monostable timing is required with TTL logic compatibility. Ensure external timing components are rated for the intended operating temperature range. Verify that the SO16 package dimensions fit the available PCB footprint constraints.

Multivibrators Part Context

This part belongs to the 74HCT123 family of dual retriggerable monostable multivibrators. It utilizes HCT CMOS technology to ensure compatibility with standard TTL logic families while maintaining low power dissipation characteristics typical of modern CMOS devices.

Multivibrators Replacement Considerations

Nexperia offers alternative packages such as TSSOP16 (74HCT123PW,118). Cross-manufacturer equivalents may require verification of pinout compatibility and electrical parameter alignment.