MC14490 Hex Contact Bounce Eliminator IC – DIP-16

Description

The MC14490 is a hex contact bounce eliminator (also known as a debouncer) designed to clean up digital signals coming from mechanical switches, relays, or keyboards. Mechanical contacts typically produce “bouncing” when closed or opened, which can lead to multiple false triggers in digital logic circuits. The MC14490 uses an internal clock and a shift register-based logic to verify the stability of an input signal before passing it to the output.

This IC features six independent channels, making it a highly efficient solution for multi-switch interfaces. By ensuring that only stable, debounced signals are processed by your microcontroller or digital system, the MC14490 eliminates the need for complex software debouncing algorithms and external RC filter networks.

Note: Product images are for reference only. The actual product may vary in appearance or manufacturer marking depending on stock availability.

Features

• Hex Configuration: Includes six independent debounce channels in a single package.
• Reliable Signal Processing: Effectively eliminates multiple trigger events caused by switch bouncing.
• Logic Compatibility: Compatible with CMOS logic levels.
• Internal Clock: Eliminates the need for external timing components for the debounce logic.
• Package: Industry-standard 16-pin dual-in-line (DIP-16) package for easy through-hole PCB assembly.

Benefits

• Simplifies circuit design by replacing complex software or discrete RC debouncing circuits.
• Improves system reliability by preventing false triggers from mechanical inputs.
• Handles up to six switches simultaneously, saving board space.
• Provides clean, stable logic signals for microcontrollers and FPGA inputs.

Applications

• Mechanical Keyboard Interfacing
• Industrial Switch and Button Input Debouncing
• Relay Contact Clean-up
• Control Panels for Consumer Appliances
• User Interface Logic for Microcontroller Systems

Package Includes

• 1 x MC14490 Hex Contact Bounce Eliminator IC (DIP-16)

Specifications