MC14490DWG

Specialty Logic Overview

The MC14490DWG is a hex bounce eliminator integrated circuit manufactured by onsemi, belonging to the 4000 series of CMOS logic devices. It operates within a supply voltage range of 3V to 18V and features a 16-pin SOIC surface-mount package with a width of 7.50mm. The device provides six independent channels for contact bounce elimination, ensuring clean digital signals from mechanical switches. It supports a maximum power dissipation of 500mW and exhibits a propagation delay of up to 570ns. The component is rated for an extended operating temperature range from -55°C to +125°C and holds AEC-Q100 automotive qualification.

Specialty Logic Feature Summary

• Provides six independent channels for eliminating mechanical switch contact bounce
• Operates reliably across a wide supply voltage range from 3V to 18V
• Designed for high-temperature environments with an extended industrial range
• Automotive qualified under AEC-Q100 standards for robust performance

Specialty Logic Applications

• Mechanical switch debouncing in automotive control modules
• Input signal conditioning for microcontroller interfaces
• Industrial equipment keypads and operator panels
• Consumer electronics requiring reliable button input detection

Specialty Logic Procurement Notes

Verify the specific suffix 'DWG' confirms the RoHS-compliant tape-and-reel packaging variant. Confirm the manufacturer is onsemi, as legacy parts may carry different branding. Check for AEC-Q100 certification if automotive reliability is required. Ensure the 16-SOIC footprint matches the target PCB design. Validate current production status against obsolete variants like MC14490DWR2.

Specialty Logic Selection Notes

Select this component when six-channel debounce functionality is required without external discrete components. The wide voltage tolerance suits systems with varying power rails. Consider the SOIC package dimensions for space-constrained layouts. Verify thermal requirements against the 500mW dissipation limit. Compare propagation delays if timing-critical applications are involved.

Specialty Logic Part Context

This part belongs to the MC14490 family of dedicated logic ICs designed specifically for switch interface applications. It replaces older discrete resistor-capacitor networks or multi-gate solutions. The device integrates timing circuits to filter out transient noise caused by mechanical contacts. It is part of onsemi's broader portfolio of automotive-grade logic products.

Specialty Logic Replacement Considerations

• MC14490DWR2G

Specialty Logic FAQ

What is the maximum number of switch inputs supported?

The MC14490DWG supports six independent switch inputs through its internal hex channel architecture.

Is this component suitable for harsh automotive environments?

Yes, it is AEC-Q100 qualified and rated for operation between -55°C and +125°C.