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News Media Alert

27 Jul 2011

Keil Supports the New Holtek HT32F1251x Family

Cambridge, UK: Keilannounces immediate support for the Holtek HT32F125x family in the Keil MDK-ARM.

The HT32F125x family, of the ARM® Cortex-M3-based devices, are supplied in 48-pin LQFP package type with up to 32 GPIO pins. The family consist of 8KB – 32KB of Flash Program Memory, 2KB – 8KB of SRAM Data Memory together with an 8-channel 12-bit 1Msp high speed A/D converter and multiple General Purpose Timer Modules. The devices include multiple power management modes, a power-on-reset (POR), Programmable Low Voltage Detector (LVD), and brownout detection (BOD). Additional functions include fully integrated real time clock, operational amplifiers and comparators, USART interface, SPI interface, I2C interface.

Application areas for this new range of devices could include medical products, computer peripherals, home appliances, personal health care products and portable devices etc.


The latest version of MDK-ARM supports the Holtek device family. It includes Holtek set-up files, flash programming support, device-specific views, and compilation support.

MDK features the industry-standard compiler from ARM, the Keil µVision®4 IDE/debugger,the full featured RTX RTOS, and sophisticated analysis tools. It is specifically optimized for single-chip, high performance devices such as the Holtek MCU, of the Cortex-M3 family, and analysis tools as well as target debugging with advanced trace capabilities for all Cortex-M processor-based devices.


The MDK v4.21 is available now.

You may download MDK v4.21 as an Evaluation or as a product Update.

About Keil

The Keil products from ARM include C/C++ compilers, debuggers, integrated environments, RTOS, simulation models, and evaluation boards for ARM, Cortex-M, Cortex-R4, 8051, C166, and 251 processor families.

About ARM

ARM designs the technology that lies at the heart of advanced digital products, from wireless, networking and consumer entertainment solutions to imaging, automotive, security and storage devices. ARM's comprehensive product offering includes 32-bit RISC microprocessors, graphics processors, video engines, enabling software, cell libraries, embedded memories, high-speed connectivity products, peripherals and development tools. Combined with comprehensive design services, training, support and maintenance, and the company's broad Partner community, they provide a total system solution that offers a fast, reliable path to market for leading electronics companies. More information on ARM is available at

ARM and µVision are registered trademarks of ARM Limited. Keil, MDK-ARM, MCB11U10, and Cortex are trademarks of ARM Limited. All other brands or product names are the property of their respective holders. "ARM" is used to represent ARM Holdings plc; its operating company ARM Limited; and the regional subsidiaries ARM INC.; ARM KK; ARM Korea Ltd.; ARM Taiwan Limited; ARM France SAS; ARM Consulting (Shanghai) Co. Ltd.; ARM Belgium Services BVBA; ARM Germany GmbH; ARM Embedded Technologies Pvt. Ltd.; ARM Norway AS and ARM Sweden AB.

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