onsemi

MC14490PG

MC14490PG Description

The MC14490PG from onsemi is a hex contact bounce eliminator IC designed to mitigate signal noise and mechanical switch bounce in digital circuits. Part of the 4000 series, this through-hole-mounted device operates across a wide supply voltage range (3V to 18V), making it versatile for both low and high-voltage applications. Housed in a 16-pin DIP package, it integrates six independent debounce circuits, each capable of filtering transient signals from mechanical switches, relays, or sensors. With REACH Unaffected status and Moisture Sensitivity Level (MSL) 1, it is suitable for industrial and consumer electronics requiring robust performance.

MC14490PG Features

• Logic Type: Contact Bounce Eliminator – Ensures clean signal transitions by suppressing switch bounce.
• Wide Voltage Range (3V–18V): Compatible with TTL, CMOS, and other logic families.
• Six Independent Channels: Processes multiple switch inputs simultaneously.
• High Noise Immunity: Ideal for electrically noisy environments.
• Through-Hole (DIP) Packaging: Simplifies prototyping and legacy system integration.
• Low Power Consumption: Efficient for battery-operated devices.
• Obsolete Status: Still valuable for maintenance, repairs, or niche designs requiring proven reliability.

MC14490PG Applications

• Industrial Controls: Debounces switches in PLCs, motor controls, and instrumentation.
• Consumer Electronics: Keypad interfaces, appliance controls, and gaming peripherals.
• Automotive Systems: Signal conditioning for dashboard switches or sensors.
• Retro Computing: Replaces or replicates vintage logic in legacy equipment.
• Test & Measurement Equipment: Ensures accurate signal readings in lab environments.

Conclusion of MC14490PG

The MC14490PG excels in applications demanding noise-free switching signals, offering six-channel debouncing with broad voltage compatibility. While obsolete, its durability and simplicity make it a pragmatic choice for repairs or designs prioritizing reliability over cutting-edge integration. Engineers value its ease of use in through-hole designs and proven performance in harsh electrical environments. For legacy systems or cost-sensitive projects, this IC remains a functional solution despite newer alternatives.