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The Game-Changer in Embedded Systems: The Holtek BH67F5255


In the world of embedded systems, attention to detail is paramount. Whether you're measuring temperature in a climate-controlled room or dimming the lights in a smart home, precision is key. Traditional microcontrollers can do the job, but when you require extremely accurate data conversion along with LED control, you need something more specialised. Enter 24-bit A/D Flash MCUs with LED Drivers. These powerful chips offer a level of precision and control that's simply unparalleled.

Image depicting the function of an Analogue to Digital Converter

Why a 24-bit A/D Flash MCU with LED Driver?

Unmatched Precision

When you're dealing with applications that require high-precision analog-to-digital conversion, 24-bit A/D converters are your go-to option. These provide a significantly higher number of gradations between the digital and analog world compared to their 8-bit or 16-bit counterparts.

Seamless LED Control

In modern electronics, LED control is ubiquitous, and it's not just about turning a light on and off. It's about variable brightness levels, pattern controls, and sometimes even colour mixing. An MCU with a built-in LED driver allows for seamless and efficient LED control.

Introducing the Holtek BH67F5255

Image of the Holtek BH67F5255 IC

Holtek, a name synonymous with application specific, reliable and efficient microcontrollers, has recently launched the BH67F5255. This chip isn't just a 24-bit A/D Flash MCU; it's a complete solution designed to bring high precision and versatility to your projects.

Key Features

  • 24-bit Delta-Sigma A/D Converter: For extremely accurate data conversion.

  • Built-in LED Driver: Control up to 8 channels of LEDs.

  • LCD Driver: On-chip LCD driver for better user interface possibilities.

Features and Specifications

Let's dive into the specifics to know what makes this chip a powerhouse:

CPU Features

  • 16 MHz Operating Frequency

  • 32K x 16 Flash Program Memory

Peripheral Features

  • Two 16-bit Timer/Counters

  • 8-channel PWM Output

  • Watchdog Timer

Power Management

  • Low Power Modes

  • Built-in LDO

A/D Converter

  • 24-bit Delta-Sigma architecture

  • Up to 8 differential channels

LED Driver

  • 8-channel LED driver

  • Constant current output

Possible Applications

Industrial Automation

The high-precision A/D conversion can be invaluable in industrial settings, where even the tiniest discrepancy can result in significant losses.

Smart Home Systems

With built-in LED control, this chip can manage various lighting situations in a smart home, from dimming to mood lighting.

Image showing electronic medical devices

Medical Devices

In medical electronics, accuracy is non-negotiable. The BH67F5255's 24-bit A/D converter ensures that medical measurements are spot on.

Energy Management Systems

Accurate data conversion makes it a strong candidate for systems that need to constantly monitor electrical parameters.

Automotive Control Units

The MCU's multiple I/O options and high-precision A/D conversion make it ideal for real-time monitoring systems in vehicles.

Laboratory Equipment

The 24-bit A/D conversion can be invaluable in lab equipment where precise measurements are the norm rather than the exception.


The Holtek BH67F5255 is a powerhouse of features packed into a single chip. If you're looking to push the boundaries of what's possible in your next project, this MCU deserves your attention.

Ready to take the next step? Don’t hesitate to contact Ineltek for a deeper dive into how the BH67F5255 can transform your next project.



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