S9S12VR48AF0VLCR Description

The MC9S12VR-Family is a range of 16-bit automotive microcontrollers that has been tuned for cheap cost, excellent performance, and few pins. This family incorporates a relay driver, high-side driver outputs, wake up inputs, an S12 microcontroller with a LIN Physical interface, a 5V regulator system to power the microcontroller, and analog blocks to control other system components that work at the vehicle battery level. Target markets for the MC9S12VR-Family include general automotive applications that demand single node LIN communications. These applications typically include, among others, sunroof modules, seat modules, and window lift modules.

Many of the features found on the MC9S12G family are also used by the MC9S12VR family. These features include error correction code (ECC) on flash memory, EEPROM for diagnostic or data storage, a quick analog-to-digital converter (ADC), and a frequency modulated phase locked loop (IPLL) that enhances EMC performance. By combining a number of essential system components into a single device, the MC9S12VR-Family optimizes system architecture and achieves significant space savings. The MC9S12VR-Family maintains the low cost, power consumption, EMC, and code-size efficiency advantages now experienced by users of Freescale's existing 8-bit and 16-bit MCU families while delivering all the benefits and efficiencies of a 16-bit MCU.

S9S12VR48AF0VLCR Features

• HCS12 CPU core

• 64 or 48 Kbyte on-chip flash with ECC

• 512 byte EEPROM with ECC

• 2 Kbyte on-chip SRAM

• Phase locked loop (IPLL) frequency multiplier with internal filter

• 1 MHz internal RC oscillator with +/-1.3% accuracy over rated temperature range

• 4-20 MHz amplitude controlled pierce oscillator

• Internal COP (watchdog) module (with separate clock source)

• Timer module (TIM) supporting input/output channels that provide a range of 16-bit input capture, output compare and counter (up to 4 channels)

• Pulse width modulation (PWM) module (up to 8 x 8-bit channels)

• 10-bit resolution successive approximation analog-to-digital converter (ADC) with up to 6 channels available on external pins

• One serial peripheral interface (SPI) module

• One serial communication interface (SCI) module supporting LIN communications (with RX connected to a timer channel for internal oscillator calibration purposes, if desired)

• Up to one additional SCI (not connected to LIN physical layer)

• One on-chip LIN physical layer transceiver fully compliant with the LIN 2.2 standard & SAE J2602-2 LIN standard

• On-chip voltage regulator (VREG) for regulation of input supply and all internal voltages

• Autonomous periodic interrupt (API) (combination with cyclic, watchdog)

• Two protected low-side outputs to drive inductive loads

• Up to two protected high-side outputs

• 4 high-voltage inputs with wake-up capability and readable internally on ADC

• Up to two 10mA high-current outputs

S9S12VR48AF0VLCR Applications

• Window lift modules

• Door modules

• Seat controllers

• Smart actuators

• Sun roof modules