The Holtek HT32F67041/67051 devices are high performance, low power consumption 32-bit microcontrollers based around an Arm® Cortex®-M0+ processor core.
The devices operate at a frequency of up to 60 MHz with a Flash accelerator to obtain maximum efficiency. It provides up to 128 KB of embedded Flash memory for code/data storage and 8 KB of embedded SRAM memory for system operation and application program usage. A variety of peripherals, such as PDMA, AES-128, Hardware Divider DIV, SPI, UART, I²C, GPTM, SCTM, BFTM, CRC-16/32, RTC, WDT, ADC, 2.4GHz RF Transceiver and SW-DP (Serial Wire Debug Port), etc., are also implemented in the devices. Several power saving modes provide the flexibility for maximum optimization between wakeup latency and power consumption, an especially important consideration in low power applications.
The fully integrated 2.4GHz RF transceiver is a high performance RF GFSK transceiver and is operated in the worldwide frequency band at 2.4 GHz for Industrial, Scientific, and Medical applications. The frequency band is programmable at 2.402~2.480 GHz and incorporates a baseband modem with programmable data rates of 125 Kbps and 250 Kbps. The output transmitting power can be up to +6 dBm (Max.).