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MCU family offers flexibility for automotive apps

Posted: 22 Mar 2007 ?? ?Print Version ?Bookmark and Share

Keywords:automotive? SRAM? DSP? Infineon? MCU?

Infineon Technologies has unveiled a new MCU family designed to meet the strong flexibility requirement of present and future automotive body and gateway applications.

The XC2200 family, including more than 60 products, offers designers the scalability to select the MCU with the combination of memory, peripheral set, temperature and packaging to match their application's requirements, both during and after their design cycle without any changes to the PCB design.

30% cost savings
Once the software is compiled for XC2200, it can be used for various body and gateway applications within different model platforms of a car manufacturer. Overall cost savings in development, qualification, validation and testing can be up to 30 percent of the usual hardware and software efforts for designs, such as a Body Central Mode. The product features a high-performing CPU that provides 80MIPS; a peripheral set offering, among others, automatic CAN gateway functionality and light bulb supervision ability without engaging the CPU load. Other characteristics include AUTOSAR compliance, memory headroom of up to 1.28 Mbytes and low power consumption in standby mode to preserve battery life.

The XC2200 family operates at up to 80MHz,consumes less than 60mA power at maximum performance and 50?A in standby mode with a running on-chip voltage regulator. This includes brown-out detection, an ultralow power clock for a short wake-up time, a wake-up timer and standby SRAM. Additionally, the family features a peripheral set that reduces CPU load and offers automatic CAN gateway functionality, as well as light bulb supervision without engaging the CPU load. Peripherals include two synchronizable ADCs with 30 channels, optional data pre-processing and a conversion time down to 1.2?s. The ADC is triggered by the flexible PWM unit and is then handed over to the CPU to initiate the reaction needed on a different peripheral.

The flexible USICs of the XC2200 family can be used as UART interface, LIN interface, buffered SPI, IIC Bus interface and IIS interface. A MultiCAN Interface (Rev. 2.0B active) provides up to 256 flexibly assignable message objects on up to six CAN nodes and gateway functionalities. Infineon supports software standardization for interfaces and software modules for automotive systems by offering AUTOSAR software drivers for all XC2200 products.

Software-, pin-compatibility
All family members are software- and pin-compatible. They are based on the C166S V2 architecture and offer DSP-level performance. The products come in a wide range of memory configurations from 32Kbyte to 1,280Kbyte embedded flash, allowing easy upgrades when the application is short of memory or I/O functionality.

"There is a clear trend in body applications towards AUTOSAR compliancy and flexibility to serve the different body architectures with one MCU family," said Dr. Christopher Hegarty, VP and general manager of the MCU business unit at Infineon Technologies. "Providing a flexible family with 32bit performance is key for Infineon. Our new body/gateway XC2200 family addresses the need for plug-and-play exchangeability through devices with compatible software and pins. The family concept provides scalability in memory, peripherals, functionality, performance, temperature range and packaging."

Infineon has introduced the first five members of the XC2200 family: the XC2264, XC2267, XC2285, XC2286 and XC2287. A total of 60 derivatives are available with variations of the five members in the flash memory size (448-, 576- and 768Kbytes), operating frequency (66/80MHz), peripheral set for low-end door modules/complex high-end BCM or gateway modules, automotive temperature range (-40C to 125C) and Pb-free LQFP package options (LQFP-100/-144). Further versions with a flash memory size of 32-1,280Kbytes, operating also at 40MHz frequency and additional LQFP-packages with 64 and 176 pins will be introduced later in 2007.

The XC2200 family is supported by a full suite of development tools, including evaluation boards, debuggers, compilers and documentation. Samples are available for automotive customers. Volume production of all family members is scheduled to start April 2008. Sample pricing varies according to product specification. For instance, the XC2267 with 448Kbytes of flash memory is priced at approximately $ 7.35 per piece in quantities of 20,000.

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