HT32F1251B
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Core
Cortex-M3, 72 MHz
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Family
HT32F12xx Series
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Sub-Family
HT32F1251B/51/52/53
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CMSIS Pack
HT32_DFP
The HOLTEK HT32F125x series of devices are high performance, low power consumption 32-bit microcontrollers based on the Arm Cortex-M3 rocessor core. The Cortex-M3 is a next-generation processor core which is tightly coupled with a Nested Vectored Interrupt Controller (NVIC), SysTick timer and advanced debug support.
The HT32F125x device operates at a frequency of up to 72MHz with a Flash accelerator to obtain maximum efficiency. It provides up to 32KB of embedded Flash memory for code/data storage and up to 8 KB of embedded SRAM memory for system operation and application program usage. A variety of peripherals, such as ADC, I2C, USART, SPI, SW-DP (Serial Wire Debug Port), etc., are also implemented in this device series. Several power saving modes provide the flexibility for maximum optimisation between wakeup latency and power consumption, an especially important consideration in low power applications.
The above features make the HT32F125x device suitable for a wide range of applications, especially in areas such as white goods and application control, power monitor and alarm systems, consumer and handheld equipment, data logging applications and so on.
| Core |
Processor Cortex-M3 |
|---|---|
| Maximum Clock Frequency | 72 MHz |
| Memory Protection Unit | NO_MPU |
| Floating Point Unit | NO_FPU |
| Trust Zone | |
| Digital Signal Processor | |
| CortexM Vector Extensions | |
| Endian | Little-endian |
| Features | View features |
Processor
Cortex-M3, 72 MHz
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I/O IO Pins 30 IO Pins External Interrupts 16 External Interrupts Analog to Digital Converter 8-channel x 12-bit Analog to Digital Converter OPA/Comparator 2 x OPA/Comparator -
Package LQFP 48-lead LQFP -
Clock External Crystal Oscillator 4 MHz .. 16 MHz External Crystal Oscillator Internal RC Oscillator 8 MHz Internal RC Oscillator -
Power Operating Voltage 2.7 V .. 3.6 V Operating Voltage Run,Sleep,Deep-Sleep1,Deep-Sleep2,Power-Down 5 Run,Sleep,Deep-Sleep1,Deep-Sleep2,Power-Down -
Spec Operating Temperature Range -40 °C .. +85 °C Operating Temperature Range -
Timer GPTM with Quadrature Decoder 2 x 16-bit GPTM with Quadrature Decoder Watchdog Timer 1 x Watchdog Timer -
Communication Universal Synchronous Asynchronous Receiver Transmitter 1 x 0 bit/s Universal Synchronous Asynchronous Receiver Transmitter Serial Peripheral Interface 1 x 0 bit/s Serial Peripheral Interface Inter-Integrated Circuit 1 x Inter-Integrated Circuit