Holtek is delighted to announce the release of its new Touch Key A/D Flash MCU, the BS84D20CA. This new device continues to incorporate all the benefits of predecessor devices such as excellent anti-interference characteristics but includes an expanded range of system resources such as an 8×8 LED controller and up to 46 I/Os. These features combine to ensure the device is suitable for use in applications which require multiple touch keys and other complex functions for home appliances such as air fryers, air purifiers, kitchen scales and coffee machines, etc.
This new device provides 20 touch keys which have an automatic detection function. All of the touch keys have passed the conductivity susceptibility dynamic 10V test. It has a wide 1.8V~5.5V operating voltage and with regards to memory has 8K×16 of Flash Program Memory, 768×8 of Data Memory and a 512×8 EEPROM. Other functions include a 12-bit A/D converter with a high accuracy reference voltage up to ±1%, a high speed UART interface and additional SPI/I2C interfaces.
The device is suitable for use as a master MCU, which when used together with a suitable power board can implement full product applications. Holtek also fully supports the device with a comprehensive suite of hardware and software development tools as well as a touch key function library which will assist designers with their rapid product development. The device is supplied in 28-pin SOP/SSOP and 48-pin LQFP package types.