½½-bit ½RM Co½tex™-M½ MCU
HT½½F1½51/51B/5½/5½
1
General Description
The Holtek HT32F125x series of devices are high performance, low power consumption 32-bit
microcontrollers based on the ARM
®
Cortex™-M3 processor 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, I
2
C, 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.
General Description
Rev. 1.10
6 of ½5
½½½i½ 1½½ ½01½
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
