Holtek has launched the new 5V wide voltage Arm^® Cortex®-M0+ Touch microcontroller HT32F542xx series, with a maximum frequency of 60MHz, providing up to 28 touch keys, and can undergo CS (Conductive Susceptibility) 10V dynamic testing. Additionally, it features an LED controller with automatic scanning capability. It is suitable for various electrical products such as air fryers, rice cookers, smart door locks, washing machine panels, etc.

The HT32F54231/54241 series has a Flash capacity of 32KB/64KB and an SRAM capacity of 4KB/8KB, providing up to 24 touch keys, and supports automatic detection in deep sleep mode 1 / deep sleep mode 2, making it suitable for low-power product applications. It also offers rich peripheral resources, such as USART, UART, I^²C, SPI, and a 10-channel 1Msps SAR ADC. The package options include 28SSOP, 32/46QFN, and 48LQFP.

The HT32F54243/54253 series has a Flash capacity of 64KB/128KB, an SRAM capacity of 8KB/16KB, and provides up to 28 touch keys. The peripheral resources cover the HT32F542x1 series and additionally provide 6-channel PDMA and 2 sets of comparators, suitable for a wider range of applications. The package options include 32/46QFN and 48/64LQFP.

In addition to supporting professional IDE vendors such as IAR and Keil, Holtek also provides a learning board (Starter Kit), ICE tool e-Link32 Pro, peripheral driver libraries (Firmware Library), touch key libraries, application example code, etc. Coupled with Holtek’s ISP (In-System Programming) and IAP (In-Application Programming) technology solutions, firmware upgrades can be easily performed, assisting customers in shortening product development cycles.