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Motorola combines MCUs with analog ICs

Posted: 30 Sep 2003 ?? ?Print Version ?Bookmark and Share

Keywords:motorola? semiconductor products sector? microcontroller? mcu? smatmos?

Motorola Inc.'s Semiconductor Products Sector has developed a series of devices that combine flash microcontrollers (MCUs) with SMARTMOS analog ICs in a single package. The company claims that its MM908E624 and MM908E625 Intelligent Distributed Control devices integrate virtually all of the features needed for a LIN node into a single 54-lead SOIC package.

Designed to help automotive suppliers incorporate power and control functions into systems such as seat, mirror and window lift controls, door locks and other automotive electronics, the devices include the LIN physical layer coupled with a flash MCU that integrates an enhanced serial communications Interface for flexible management of the LIN protocol.

The HC908 MCU provides intelligence for demanding motion control decisions while its flash memory enables on-the-fly programming and production flexibility. Additional MCU features include dual timer channels, a 10-bit ADC, and serial peripheral interface. The analog ICs on the MM908E624 and the MM908E625 are manufactured using the company's SMARTMOS process that enables the combination of high-density/high-speed logic with precision analog and high-voltage/high-current power circuitry.

The MM908E624 includes the drivers and inputs necessary for dc motor control using low-cost relays, and its analog IC features include three high-side outputs that allow direct control of automotive relays with minimum external components.

With an analog IC that features four half-bridges and one high-side output, the MM908E625 allows for direct control of the motors used in door locks and other small motor control applications. It can be configured to run bipolar stepper motors in current control mode up to 500mA in size.

Sample quantities of the Intelligent Distributed Control devices are available with suggested prices of $3.95 for the MM908E624 and $4.95 for the MM908E625 in 10,000-piece quantities. The KIT908EINTFCEVB, KIT908E624DWBEVM, and KIT908E625DWBEVM evaluation kits are available for $100.

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