MM912F634DV1AER2

Application Specific Microcontrollers Overview

The MM912F634DV1AER2 is an integrated single-package solution combining an HCS12 microcontroller with a SMARTMOS analog control IC. It features a 16-bit S12 CPU, 32 kB FLASH, and 2.0 kB RAM. The device includes a LIN 2.1 physical layer interface with integrated SCI, six high-voltage/wake-up inputs (L0–L5), two protected low-side outputs, and two protected high-side outputs. It supports a maximum bus frequency of 20 MHz and operates within a temperature range of -40°C to 105°C.

Application Specific Microcontrollers Feature Summary

• Integrated HCS12 MCU with 32 kB Flash and 2.0 kB RAM
• LIN 2.1 Physical Layer Interface with integrated SCI
• Six High-Voltage/Wake-up Inputs (L0–L5) with cyclic sense capability
• Two Protected Low-Side and Two Protected High-Side Outputs

Application Specific Microcontrollers Applications

• Automotive door control modules
• Window lifters and seat control systems
• Local Interconnect Network (LIN) nodes

Application Specific Microcontrollers Procurement Notes

Verify the 'R2' suffix indicates Tape and Reel packaging as specified in the ordering information table. Confirm the Analog Option is '1', which includes the Current Sense Module and all six wake-up inputs (L0–L5). Ensure the package designation matches the 48-pin LQFP form factor required for the specific pinout configuration.

Application Specific Microcontrollers Selection Notes

Select this variant when a 20 MHz maximum bus frequency is sufficient for the application logic. Choose Analog Option 1 if current sensing via ISENSEL/ISENSEH pins or full wake-up input availability (L0–L5) is required. Verify that the -40°C to 105°C automotive temperature range aligns with the environmental constraints of the target system.

Application Specific Microcontrollers Part Context

This component belongs to the MM912F634 series, part of the S12 MagniV product family. It utilizes a Die-to-Die Interface (D2D) to transparently map the analog die registers into the MCU memory space, providing faster access than SPI-based solutions. The DV1AE derivative serves as the base model for the tape-and-reel version.

Application Specific Microcontrollers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.