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Freescale S12XE Family of 16-bit Automotive Microcontroller Doubles Memory Size

Significantly Increases Functionality, Performance and System Integrity

(PresseBox) (AUSTIN, Texas, ) Freescale Semiconductor (NYSE:FSL) (NYSE:FSL.B) is bringing enhanced system integrity and higher integration to designers of automotive body and multiplexing applications by extending its high-performance S12X 16-bit microcontroller (MCU) range. With more memory options, the advanced S12XE MCU family was designed to provide greater functionality in one package and reduce overall system costs.

The lead device, S12XEP100, doubles the memory size at the top of the S12X range to 1MB and significantly increases MCU performance for applications including central body control, instrumentation, door modules and chassis nodes. The advanced 208 MAP BGA package option delivers many more input/output ports than previously available.

Based on the popular HCS12 product line, the S12XE's advanced features are designed to enable current HCS12 users to retain the value of their investment in software and systems design, while providing the leap in functionality required by the next generation of vehicle electronics systems. With 16K to 1MB flash, the S12X MCU memory range is one of the broadest on the market. The S12XE family's leading-edge 0.18 micron process technology allows larger memory areas and more peripheral modules to fit on smaller die sizes.

The S12XE family includes a memory protection unit (MPU), which guards against systematic errors in software. The MPU tackles the potential problems of different modules incorrectly interacting with each other. This feature is crucial in automotive design as it helps to minimize the spreading of system failures within the automobile.

"System integrity in the product range reaches new levels with the introduction of self-correcting flash memory and a new MPU," said Kevin Klein of Freescale's Microcontroller Division. "The MPU is a particularly sought-after feature for today's market, where it is increasingly common for MCU software modules to be supplied by multiple vendors."

The S12XE family features the performance-boosting XGATE co-processor module which has become an indispensable component in many automotive S12X projects, providing such functions as display driving, sophisticated pulse with modulation (PWM) capability and interrupt handling. The XGATE significantly offloads the CPU, allowing it to focus on critical system activities and resulting in improved response time. The versatility of the XGATE enables manufacturers to add more innovative features to their designs.

MC9S12XE features:

-- 1MB of flash memory with error correction code (ECC)

-- 50MHz S12X enhanced CPU

-- XGATE module

-- 64 KB of RAM, 4 KB of EEPROM (capable of 1 million cycles)

-- 5x CAN, 8x LIN, 3x SPI, 2x IIC communication interfaces

-- Advanced interrupt features

-- 32 channels of 12-bit analog-to-digital converters and eight-channel PWM

-- Eight-channel timer with prescalers; four 16-bit internal counters

-- Non-multiplexed external bus interface option

-- On-chip single wire debug module (BDM) with trace buffer

-- 208-, 144-, 112- and 80-pin versions qualified from -40 to +125 degrees Celsius

Speeding system development

Third-party hardware and software tools are available from multiple vendors. Designers can also use existing HCS12 tools for S12XE development.

In addition to demonstration and development tools, Freescale offers comprehensive technical support, including reference designs, application notes and online tutorials, all of which are designed to reduce development time. Additional design information and software are available on the Freescale Web site, www.freescale.com/files/pr/s12xe.html.

Product Availability

Freescale Semiconductor offers a full range of S12X devices with various quantities of flash and application-specific functionality. The one-megabyte S12XEP100 device is sampling now and allows up to 100 percent emulation of the whole S12XE family, down to 128K. An array of development tools including evaluation boards and C-compilers is also expected to be available later this month.

For a print quality photos, visit www.freescale.com/mediacenter. Click on "Graphics/Products."

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