Posted on May 17, 2011 at 12:35Hi all,
ST has added 28 new devices to the STM32 family, including devices in 36-pin packages at the low end and 144-pin packages at the high end. Compatibility of pin assignments, peripherals and software across all STM32 devices remains a core technical feature throughout this extended family of microcontrollers. The latest MCUs provide 256 Kbytes, 384 Kbytes or 512 Kbytes of embedded Flash for code and data storage, enabling developers to implement new features and enhance the capabilities of existing product platforms. Embedded SRAM has also been increased, to 64 Kbyte for the 72MHz Performance Line variants, and 48 Kbytes for the 36MHz Access Line devices. The Access Line is engineered to encourage entry to 32-bit design for cost-constrained applications, or 16-bit designs.
Extra peripherals embedded in MCUs with 256 Kbytes and larger Flash memories include a Flexible Static-Memory Controller (FSMC) supporting NOR and NAND Flash, SRAM, and CompactFlash memories. The FSMC also supports Intel 8080 and Motorola 6800 modes for parallel interface with LCD controllers. These MCUs also feature a host interface for removable media including SD (Secure Digital), SDIO (Secure Digital Input/Output) and MMC (MultiMediaCard), meeting MultiMediaCard System Specification 4.42 for 8-bit data transfer at 48MHz.
In addition, an I2S port supporting master and slave modes and audio-sampling frequencies from 8kHz to 48kHz has been added, as well as a 2-channel 12-bit DAC and an Embedded Trace Macrocell (ETM) to enhanced debug capabilities. Additional standard peripherals are included with a combination of up to five UARTs/USARTs and three SPI and two I2C bus interfaces. This new combination of peripherals allows the STM32 family to address new markets that require superior connectivity and additional control.
The new STM32 devices are available in LQFP64, LQFP/BGA100 and LQFP144/BGA144 packages. For lower memory-density versions, featuring 32 Kbytes or 64 Kbytes of Flash, a new QFN36, the smallest 6 x 6mm package in the STM32 family, has also been introduced, thereby supporting extended platform scalability for developers seeking a cost-effective common-hardware strategy for multiple market opportunities.
In addition, the new Performance Line MCUs, with 256 Kbytes to 512 Kbytes of Flash, now include an extra PWM timer, offering two timers with seven outputs and dead-time control. These two PWM timers combine up to four standard 16-bit timers to allow support of up to twenty-eight PWM signals using the largest package. With an extra 12-bit ADC, these devices provide up to 21 channels of ADC with triple sample-and-hold capability. This gives the STM32 dual motor-control capabilities, to enable it to drive two 3-phase brushless motors at the same time for air-conditioning units and applications requiring four-wheel drive, for example. All Performance Line MCUs also include a USB port and CAN interface.
In all, the STM32 product range now comprises 46 different Performance Line and Access Line devices. The STM32 environment allows developers to build applications on a standard core, drawing on a large ecosystem of software and tools. Support for developers includes a new ST evaluation board for the latest models introduced, software and firmware libraries, and a wide variety of compatible third-party tools.
http://www.st.com/stonline/frags.v5/splash/stm32_extends.swf
Cheers,
STOne-32
