Freescale announces MM912F634, Integrated S12 Based Relay Driver with LIN

Freescale announced the availability of MM912F634 family, the latest addition to Freescale’s S12-based intelligent distributed control (IDC) family. The MM912F634 is a network-enabled controller for automotive applications that integrates an HCS12 microcontroller and a SMARTMOS analog control IC into a single package.

Freescale MM912F634 Integrated S12 Based Relay Driver with LIN

The analog die combines System Basis Chip (SBC) functionality and application specific functions, which include a Local Interconnect Network (LIN) transceiver, relay drivers a DC motor current sense circuit, and a selection of high and low side digital I/O. Control of the analog die is via a new high performance internal Die to Die interface (D2D), which seamlessly integrates the analog IC registers into the MCU registermap, to provide faster access than SPI based systems.

Product features:

• Freescale’s high-performance 16-bit S12 CPU with 32kb flash memory and 2k RAM;
• An internal RC oscillator, two autonomous window watchdogs with dedicated oscillators and a real-time interrupt module;
• Cascaded low-drop-out voltage regulators (5V and 2.5V) with fault detection and low-voltage reset (LVR) circuitry;
• LIN 2.1 physical layer interface;
• Two protected low-side outputs to drive inductive loads, two protected high-side outputs, six high-voltage inputs (shared digital and analog inputs, with wake-up capability);
• Battery voltage sense with low-battery warning, reverse battery protection, configurable cyclic sense and a forced wake-up feature;
• Current sense module with selectable gain;
• Chip temperature sensor (readable via ADC channel);
• Hall sensor supply implemented as switchable 18V voltage regulator;
• Six digital (5V) general purpose input/output shared with SPI, three 5V digital/2.5V analog I/Os shared with 16-bit Timer, 2-channel PWM, 10-bit ADC and SCI with selectable pull-up resistor per terminal.

Price of MM912F634 starts at $4.07 for 10K unit qty.

More information about Freescale MM912F634 Integrated S12 Based Relay Driver with LIN: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MM912F634