Holtek’s 32-bit Single Chip Solutions With the benefits of an ARMR CortexTM-M3 as the microcontroller core and a comprehensive set of peripheral functions, HT32F125x series devices form excellent and cost-effective solutions for applications requiring 32-bit processing power. The inclusion of multiple embedded functions gives rise to not only reduced external component count but also smaller application printed circuit board areas leading to reduced overall product component costs and development times. Security and safety features such as memory protection, backup power domain and real time clock functions to name but a few are provided to keep the devices running safely and securely under adverse operational conditions. Holtek’s 32-bit range is well supported by a suite of software and hardware development tools ensuring designers have their designs up and running in as short a time possible. Model No.: HT32F1251B / 1251/ 1252/ 1253 Major Functions and Features A. 32-bit ARMRCortexTM-Core with up to 72MHz Operating Frequency B. 8-32 KB of Flash Program Memory and 2-8 KB of SRAM C. Analog functions include 1Msps 12-bit A/D converter, operation amplifiers and comparators D. Up to 32 General Purpose I/O pins Development Tools A. IDE: Keil/IAR/GNU B. RTOS: ARM-ARTX / uC/OS2 / FreeRTOS / Coocox CoOS C. Firmware Library: CMSIS-compliant D. e-Link32: USB Debug Adaptor E. Technical documents