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ST MCU with CAN, LIN interfaces in TQFP32 package

Posted: 08 Dec 2004 ?? ?Print Version ?Bookmark and Share

Keywords:stmicroelectronics? st? st72f561? microcontroller? mcu?

STMicroelectronics (ST) announced volume production of its ST72F561 8bit microcontroller (MCU), which integrates can (lin Slave" target=_blank>controller area network) and LIN (Local Interconnect Network) bus interfaces, plus 60KB of flash memory.

According to the company, this device is the smallest MCU in the market to offer a CAN bus and two SCI (Serial Communications Interface) interfaces with its TQFP32 7-by-7mm package.

The ST72F561 uses an industry-standard 8bit core with an enhanced instruction set, and is designed for applications that can benefit from its low power consumption and choice of package options. Power consumption in Standby mode is typically <1?A, and is <50?A when using its associated Auto Wake-Up feature.

This new MCU is the lead product in a family of car networking devices addressing CAN and LIN bus applications. It addresses a broad range of automotive body applications, including the door module, window lift, dashboard, seat modules, sun roof, climate control, hands-free mobile phone and exhaust-gas recycling control. In addition, ST said, its low cost, low power requirement and flexible package options make it ideal for many industrial and consumer applications needing CAN or UART (Universal Asynchronous Receiver-Transmitter) communication.

The MCU family is produced in 60KB and 32KB flash memory variants, with 60k, 48k and 32KB ROM versions to be made available shortly. All version feature a powerful CAN cell fully supporting 29bit identifiers, with enhanced message filtering, to reduce software overhead and CPU load even in complex CAN networks, and to provide higher-than-normal network performance. Additionally, the Window Watchdog provides more robust system monitoring than a traditional simple watchdog module. Two LINSCI interfaces, with built-in LIN protocol frame break support, provide LIN communication with reduced CPU load compared to a UART-based solution.

Development support is provided by third-party high-end emulators from Hitex and iSystem, and by ST's new low-end emulatorthe DVP3 Development Kit, which is priced at approximately $1,000. An inDART Starter Kit for the device is available from SofTec, and the introduction of a network prototyping kit from Phytec, with ready-to-use software examples and driver, is planned for the end of 2004. ST's programming board for the ST72F561 is already available.

The range of packages for the ST72F561 includes TQFP64, TQFP44 and the 7-by-7mm TQFP32. The flash MCU, in the TQFP64 package with 60KB of program memory, is already available in volume and is priced at $3.75 each for quantities of 25,000. Volume production of the 60KB ROM version is scheduled for Q2 2005.

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