STM32 Connectivity Line microcontrollers built on the ARM Cortex-M3 processor

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The STM32 Connectivity Line allows developers to take advantage of industry-standard 32-bit processing in designs requiring simultaneous Ethernet, USB, CAN and audio-class I2S capabilities...

STMicroelectronics has confirmed full production availability of its latest STM32 Connectivity Line microcontrollers built on the ARM Cortex-M3 processor, as forecast when the company announced its new devices in March at Embedded World 2009.

The STM32 Connectivity Line allows developers to take advantage of industry-standard 32-bit processing in designs requiring simultaneous Ethernet, USB, CAN and audio-class I2S capabilities. Two variants are available, including the STM32F105 series combining a Full-Speed USB 2.0 Host/Device/OTG peripheral and two CAN2.0B controllers with advanced filtering capabilities. The STM32F107 family adds a complete 10/100 Ethernet MAC with hardware support for the IEEE1588 Precise Time Protocol, enabling Ethernet connectivity for real-time applications. Dedicated buffers allow the USB OTG, the two CAN controllers and the Ethernet interfaces to operate simultaneously to satisfy communication-gateway applications, as well as a host of challenges r

equiring flexible, industry-standard connectivity.

Both families also support audio-class I2S communications which, combined with USB host and SPI capability, allows the micro to read music files from external storage such as a USB mass-storage device, an MP3 player or SD card, and decode and output audio via the I2S. Such features are required in home-audio products such as docking systems, alarm-clock/music players, and home theaters. The high processing power of the ARM Cortex-M3 allows developers to implement important functions such as the audio codec and human-interface functions such as display-data handling and the Play and Stop buttons in software, thereby saving additional external components.

Our considerable expertise with ARM Cortex-M3 allows us to quickly introduce new products delivering the advantages of power-efficient operation, solid real-time performance, and innovative shared peripherals to an industry-standard core,\" said Jim Nicholas, STMic