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8bit MCUs combine CAN interface, EEPROM, debug tools

Posted: 16 Nov 2007 ?? ?Print Version ?Bookmark and Share

Keywords:8bit MCU? automotive application? industrial control?

Freescale has unveiled the S08D family of 8bit MCUs, touted to be first to integrate a CAN interface, EEPROM and on-chip emulation/debug tools.

The embedded CAN interface offers suitable connectivity solution for many automotive and industrial control applications. The embedded EEPROM enhances system design flexibility by enabling data to be written and erased with ease and eliminates the need for external serial EEPROM. Integrated development tools with on-chip debug enable designers to debug quickly in real-time resulting in fast time to market. Each of these integrated capabilities is available across the full automotive temperature range of -40C to 125C.

The S08D family encompasses a scalable array of 8bit MCU options optimized for a wide range of automotive and industrial control applications. In the automotive market, the S08D family targets body, chassis, safety and powertrain control. Prime industrial control applications include factory and building automation, security systems, medical monitoring equipment, and aircraft and aerospace electronics.

"As market demand for embedded intelligence and connectivity increases and as system cost and power budgets continue to shrink, it's essential to help customers get the utmost performance and value from their 8-bit designs," said Aiden Mitchell, consumer and industrial MCU product manager for Freescale's microcontroller solutions group. "By integrating essential connectivity and memory capabilities within a single-chip architecture, Freescale's next-generation S08D family is designed to enhance system performance while reducing board space, power consumption, development time and system cost."

The S08D family currently features the following three product lines:

  • 9S08DZ: The flagship line within the S08D family, with high-performance, full-featured devices offering both integrated CAN and EEPROM
  • 9S08DN: Product line featuring embedded EEPROM without the CAN module, making it an ideal fit for non-networked and/or local interconnect network (LIN)-based applications and industrial applications that require memory flexibility
  • 9S08DV: A cost-optimized product line featuring integrated CAN connectivity without EEPROM.

    The three S08D product lines give developers the scalability, compatibility and design freedom to choose the optimal device for their specific application and system requirements. Pin compatibility across the three product lines and package scalability eliminate the need to add costly I/O expanders. A system engineer can easily migrate from one line product line up to another to expand system-level capabilities or migrate down to minimize costs.

    Additionally, the S08D family offers an upward migration path from Freescale's 68HC05 and 68HC08 architectures for applications requiring enhanced peripherals and higher performance at lower costs. Engineers now have a pin-compatible portfolio of 8-bit MCUs that embrace customer constraints from cost to power consumption.

    Manufactured on Freescale's 0.25? process technology and providing 40MHz core speed and 20MHz bus speed, the S08D family is designed to deliver high performance within a low power envelope. By keeping power consumption low, the S08D family allows automotive design engineers to continue increasing vehicle electronics content within existing 12V battery capacities. This low-power functionality makes S08D family devices ideal for power-sensitive automotive applications, such as sunroof and seat control, steering and chassis systems.

    The S08D family is supported by a comprehensive set of software development tools, such as CodeWarrior Development Studio, background debug mode, Multilink and Cyclone Pro, and hardware development tools, including evaluation boards, demonstration boards and programming adaptors. In addition to these tools, Freescale has enabled software development to get a head start on their project by making available many of the required low level software drivers for things like CAN and LIN communication and many others.

    Samples of the S08D family devices will be available this month. The suggested price for the 9S08DZ line starts at $2.52; the 9S08DV at $2.57; and the 9S08DN at $2.28 all for 10,000-piece quantities. Demonstration boards for the S08D family are priced at $78; evaluation boards at $285; and a programming adaptor at $199.

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