MM912I637AV1EPR2

Application Specific Microcontrollers Overview

The MM912I637AV1EPR2 is a fully integrated LIN battery monitoring device based on NXP SMARTMOS and S12 MCU technology. It features an embedded 96 kB flash microcontroller, precision current measurement via an external shunt resistor, and precise battery voltage measurement at the positive pole. The device includes an internal temperature sensor and supports LIN 2.1 communication. Key electrical parameters include a maximum input voltage of 42 V, an operating temperature range of -40 °C to 105 °C, and a 48-pin QFN-EP package.

Application Specific Microcontrollers Feature Summary

• Integrated S12 microcontroller with 96 kB Flash, 6.0 kB RAM, and 4.0 kB Data Flash.
• Precise battery voltage and current measurement using external components.
• LIN 2.1 interface for sensor feedback transmission.
• On-chip temperature measurement with optional external sensor support.

Application Specific Microcontrollers Applications

• 12 V Lead-acid battery monitoring systems.

Application Specific Microcontrollers Procurement Notes

Verify the R2 suffix indicates tape-and-reel packaging as specified in the ordering information. Confirm the AV1 variant corresponds to the -40 °C to 105 °C temperature range and Analog Option 1 (no external wake-up or temperature sensor options). Ensure compatibility with the 48 QFN-EP package dimensions.

Application Specific Microcontrollers Selection Notes

Select this part for applications requiring integrated battery sensing with LIN bus connectivity. The I637 variant provides 96 kB of flash memory, suitable for standard firmware requirements. Consider the J637 variant if 128 kB of flash is needed. Verify that the analog option 1 configuration meets system requirements regarding external wake-up and temperature sensing capabilities.

Application Specific Microcontrollers Part Context

This component belongs to the MM912_637 family of intelligent integrated precision battery sensors. It combines analog front-end capabilities with an S12 microcontroller core. The device revision 'V1' denotes specific manufacturing characteristics within this series, distinct from other revisions like M2.

Application Specific Microcontrollers Replacement Considerations

For pin-compatible alternatives within the same family, consider the MM912J637AV1EPR2 which offers increased flash memory (128 kB) while maintaining the same package and feature set. Ensure software compatibility when migrating between variants with different memory sizes.