NLV14490DWR2G

Specialty Logic Overview

The NLV14490DWR2G is a discontinued Hex Contact Bounce Eliminator constructed with complementary MOS enhancement mode devices. It eliminates extraneous level changes from mechanical contacts by generating a clean digital signal four clock periods after input stabilization. The device features an internal R-C oscillator adjustable via an external capacitor or driven by an external clock source. It operates within a supply voltage range of 3.0 V to 18 V and supports an ambient temperature range of -55°C to +125°C.

Specialty Logic Feature Summary

• Diode protection on all inputs
• Internal pullups on all data inputs
• Schmitt trigger on clock input
• TTL compatible data inputs/outputs

Specialty Logic Applications

• Digital integrator
• System synchronizer
• Delay line

Specialty Logic Procurement Notes

This component carries the NLV prefix, indicating qualification for automotive applications requiring unique site and control change requirements, including AEC-Q100 certification and PPAP capability. Verify current availability status as the datasheet lists this specific part number as discontinued and not recommended for new designs.

Specialty Logic Selection Notes

Select this device when interfacing directly with mechanical contacts such as relays and push buttons. It requires only a single signal lead input due to built-in pullup resistors. Ensure the clock frequency allows four clock periods to pass during any false input states to guarantee bounce-free output signals.

Specialty Logic Part Context

The NLV14490DWR2G belongs to the MC14490 series of logic ICs. It is packaged in a 16-lead SOIC (DW suffix) format. The device contains six independent bounce eliminators, each utilizing a 4-1/2-bit static shift register to process input signals against timing pulses generated by the internal oscillator or external clock.

Specialty Logic Replacement Considerations

MC14490DWR2G