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Holtek HT32F50231_33QFN

ARM Cortex-M0+, 20 MHz, 32 kB ROM, 4 kB RAM

The HOLTEK HT32F502xx device is a high performance, low power consumption 32-bit microcontroller based around an ARM Cortex M0+ processor core. The Cortex M0+ is a next-generation processor core which is tightly coupled with Nested Vectored Interrupt Controller (NVIC), SysTick timer and including advanced debug support. TThe devices operate at a frequency of up to 20 MHz for HT32F502xx with a Flash accelerator to obtain maximum efficiency. It provides up to 64 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 ADC, DIV, PDMA, I2C, USART, UART, SPI, MCTM, GPTM, SCTM, CRC-16/32, RTC, WDT, SW-DP (Serial Wire Debug Port), etc., are also implemented in the device series. 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 electronic organs, digital pianos, electronic drums, electric guitars, electric accordions and so on.

Core ARM Cortex-M0+, 20 MHz
  • Processor:Cortex-M0+, 20 MHz
Memory 4 kB RAM, 32 kB ROM
  • ROM:32 kB
  • RAM:4 kB
Clock & Power 2.50 V .. 5.50 V, 20 MHz
  • External Oscillator:4 MHz 20 MHz External Crystal Oscillator
  • Internal RC:20 MHz Internal RC Oscillator
  • Supply Voltage:2.50 V .. 5.50 V Operating Voltage
  • Power Modes:4 Power Modes: Run,Sleep,Deep-Sleep1,Deep-Sleep2
  • Maximum Clock Frequency:20 MHz,
  • RTC:32 kHz
Communication SPI, I2C, UART, USART
  • SPI:2 x SPI
  • I2C:2 x I2C
  • UART:2 x UART
  • USART:1 x USART
Timer/Counter/PWM 2 x 32-bit Timer, 2 x 16-bit Timer, 1 x 16-bit Timer, 1 x 16-bit Timer
  • Watchdog:1 x Watchdog Timer
  • Timer/Counter:2 x 32-bit BFTM
  • Timer/Counter:2 x 16-bit PWM
  • Timer/Counter:1 x 16-bit GPTM with Quadrature Decoder
  • Timer/Counter:1 x 16-bit MCTM with Complementary Outputs
Analog 12-channel 12 bit ADC
  • ADC:12-channel x 12 bit ADC
I/O & Package -40 °C .. 85 °C, 33-QFN
  • Operating Temperature Range:-40 °C .. 85 °C Operating Temperature Range
  • I/Os:26 Inputs/Outputs
  • External Interrupts:16 External Interrupts
  • Package, QFN:33-pad QFN
  • Other:1 x CRC
  • Other:1 x DIV
Development Tools
CMSIS Drivers No CMSIS-Driver in Device Family Pack.
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