In today's smart home era, intuitive control and compact design have become essential features in consumer electronics. Holtek's BS84B04C capacitive touch MCU delivers exactly that — combining excellent noise immunity, compact packaging, and powerful integrated peripherals, making it an ideal solution for a wide range of intelligent devices.

Why Choose BS84B04C?

The BS84B04C is part of Holtek’s BS84xxxC series, renowned for their robust anti-interference performance. It retains pin compatibility with the BS83x04C series (in 8/10-pin packages), while offering enhanced system resources and a new 16-pin WLCSP ultra-compact package, catering to design upgrades in space-constrained products.

This MCU is optimized for applications requiring touch sensing, measurement, and control, including:

*  Smart electric kettles

*  Rechargeable LED desk lamps

*  RGB ambient mood lights

*  Reading lamps with color temperature and brightness adjustment

Key Features at a Glance

*  4 capacitive touch keys with CS (Conductive Susceptibility) dynamic testing up to 10V

*  Operating voltage: 1.8V to 5.5V, suitable for battery and USB-powered designs

*  Memory: 2K×16 Flash ROM and 256×8 RAM

*  Peripherals:

    *  4 Timer Modules

    *  12-bit ADC with built-in reference voltage

    *  I²C communication interface

    *  Up to 14 general-purpose I/Os

    *  Flexible package options:

        *  8-pin SOP

        *  10-pin MSOP/DFN

        *  16-pin NSOP/WLCSP

These features make the BS84B04C suitable for both compact product designs and feature-rich control environments.

Fast Development, Easy Integration

Holtek provides a complete capacitive touch function library, along with user-friendly software and hardware development tools, allowing developers to implement reliable touch functionality quickly and effectively. Whether you're developing a simple touch lamp or a multi-mode smart appliance, BS84B04C helps reduce time-to-market and engineering costs.

Looking for a compact, reliable MCU for your next touch-enabled product?
Contact us today to learn more about how the BS84B04C can empower your design.