MM912F634DV2AE

Application Specific Microcontrollers Overview

The MM912F634DV2AE is an integrated single-package solution combining an HCS12 microcontroller with a SMARTMOS analog control IC. It features a 16-bit S12 CPU with 32 kB FLASH and 2.0 kB RAM, operating at a maximum bus frequency of 20 MHz. The device includes a LIN 2.1 physical layer interface with integrated SCI, six high-voltage/wake-up inputs (L0–L5), three low-voltage GPIOs, and two protected low-side outputs for inductive loads. Analog Option 2 excludes the current sense module. It operates within a temperature range of -40 to 105 °C and utilizes a 48-pin LQFP package.

Application Specific Microcontrollers Feature Summary

• Integrated HCS12 MCU with 16-bit S12 CPU, 32 kB Flash, and 2.0 kB RAM
• LIN 2.1 physical layer interface with integrated Serial Communication Interface (SCI)
• Six high-voltage/wake-up inputs (L0–L5) and two protected low-side drivers for relays
• Die-to-Die Interface (D2D) providing transparent memory mapping between MCU and analog die

Application Specific Microcontrollers Applications

• Automotive relay driver systems
• LIN network node implementations
• Inductive load control applications

Application Specific Microcontrollers Procurement Notes

Verify that the specific derivative requires Analog Option 2, which omits the current sense module and associated ISENSEL/ISENSEH pins. Confirm the package variant matches the required thermal dissipation needs; the AE suffix denotes an exposed pad LQFP-EP, while AP denotes a non-exposed pad LQFP. Ensure the ordering suffix aligns with the desired tape and reel or tube packaging configuration as specified in the official documentation.

Application Specific Microcontrollers Selection Notes

Select this component when a combined MCU and analog driver solution is required for automotive environments. The DV2AE variant is appropriate if the application does not require the on-chip current sense module found in Option 1. The device supports up to 20 MHz bus frequency and provides extensive high-voltage input capabilities for direct battery monitoring and switch detection without external level shifting.

Application Specific Microcontrollers Part Context

This part belongs to the Freescale/NXP S12 MagniV product family, designed for mixed-signal automotive applications. It integrates the digital processing capabilities of the HCS12 core with the power management and driver functions of a SMARTMOS analog die. The D2D interface allows the MCU to control analog peripherals with lower latency compared to SPI-based architectures.

Application Specific Microcontrollers Replacement Considerations

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