MM912G634DV2APR2

Application Specific Microcontrollers Overview

The MM912G634DV2APR2 is a 16-bit microcontroller integrating an HCS12 CPU with a SMARTMOS analog control IC in a single package. It features 48 kB P-FLASH, 6 kB RAM, and 4 kB D-FLASH, operating at a maximum bus frequency of 16 MHz. The device includes a LIN 2.1 physical layer interface, two high-side outputs, and two low-side outputs for driving inductive loads. Analog capabilities include a 10-bit ADC, current sense module, battery voltage sense, and Hall sensor supply. It operates within a temperature range of -40°C to 105°C and is housed in a 48-pin LQFP package.

Application Specific Microcontrollers Feature Summary

• Integrated HCS12 MCU with SMARTMOS analog die featuring Die-to-Die interface
• LIN 2.1 transceiver with integrated SCI and wake-up inputs
• Two protected high-side and two protected low-side outputs for relay/inductive load driving
• Current sense module with selectable gain and reverse battery protected voltage sense

Application Specific Microcontrollers Applications

• Automotive body electronics applications requiring LIN communication
• Relay driver circuits for lighting or switch control
• Systems utilizing Hall effect sensors for position or speed detection

Application Specific Microcontrollers Procurement Notes

Verify the 'R2' suffix indicates tape and reel packaging as specified in the ordering information table. Confirm the 'A2' analog option availability for specific features like current sensing and wake-up inputs against the application requirements. Ensure the LQFP48 package dimensions match the PCB footprint design constraints.

Application Specific Microcontrollers Selection Notes

Select this variant over the DM1AE if a lower temperature range (-40°C to 105°C) is sufficient and cost optimization is required. Choose the DV2AP (LQFP48) over the AE suffix (LQFP48-EP) if exposed pad grounding is not utilized in the design. Verify that the 48 kB Flash and 2 kB Data Flash/RAM limits meet the software memory requirements.

Application Specific Microcontrollers Part Context

This component belongs to the MM912_634 family, which combines S12-based microcontrollers with analog power stages. It serves as a system base chip solution, reducing component count by integrating the MCU, LIN transceiver, and motor/relay drivers into one package compared to discrete solutions.

Application Specific Microcontrollers Replacement Considerations

The MM912G634DM1AE offers similar functionality but with a wider temperature range (-40°C to 125°C), higher flash capacity options, and an exposed pad package (LQFP48-EP). Check pin compatibility and analog feature differences (Option A1 vs A2) before substitution.