The HOLTEK HT32F12345 device is a high performance, low power consumption 32-bit microcontroller based around an Arm® Cortex®-M3 processor core. The Cortex®-M3 is a next-generation processor core which is tightly coupled with Nested Vectored Interrupt Controller (NVIC), SysTick timer, and includes advanced debug support.

The device operates at a frequency of up to 96 MHz with a Flash accelerator to obtain maximum efficiency. It provides 64 KB of embedded Flash memory for code/data storage and 16 KB of embedded SRAM memory for system operation and application program usage. A variety of peripherals, such as ADC, I2C, USART, UART, SPI, I2S, PDMA, GPTM, MCTM, EBI, CRC-16/32, SDIO, USB2.0 FS and SWJ-DP (Serial Wire Debug Port), etc., are also implemented in the device. 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 above features ensure that the device is suitable for use in a wide range of applications, especially in areas such as white goods application control, power monitors, alarm systems, consumer products, handheld equipment, data logging applications, motor control, fingerprint recognition and so on.

Features:

• 32-bit Arm®Cortex®-M3 processor core
• up to 96 MHz operating frequency
• 24-bit SysTick timer
• 64 KB on-chip Flash memory for instruction/data and option storage
• 16 KB on-chip SRAM
• single VDD power supply: 2.0V~3.6V
• integrated 1.5V LDO regulator for CPU core, peripherals and memories power supply

Specification:

• max. frequency: 96 MHz
• VDD: 2.0 ~ 3.6V
• flash: 64 KB
• SRAM: 16 KB
• PDMA: 12 CH
• ADC: 1Msps, 12-bit x12
• timers: BFTMx2, GPTMx2, MCTMx2
• interface: USARTx2, UARTx2, SPIx2, I2Cx2, I2Sx1
• others: CRC, EBI, SDIO
• I/O: 51
• package: LQFP48