MM912KS812AMAF

Application Specific Microcontrollers Overview

The MM912KS812AMAF is a System in Package (SiP) integrating an S12XS microcontroller and MC33812 analog driver. It features 256 kB flash, 12 kB RAM, and operates from -40°C to +125°C. The device supports VPWR from ~4.7 V to 36 V with a 5.0 V pre-regulator for the MCU. Key outputs include a 4.0 A relay/injector driver, 1.5 A lamp driver, and dual ignition outputs. It includes an ISO-9141 K-Line transceiver, watchdog timer, and fault feedback signals.

Application Specific Microcontrollers Feature Summary

• Integrated S12XS MCU with 256 kB Flash and 12 kB RAM
• MC33812 SMARTMOS IC providing high-current drivers
• Injector/Relay driver rated at 4.0 A typical current limit
• ISO-9141 K-Line transceiver for diagnostic communication

Application Specific Microcontrollers Applications

• Motorcycle engine control units
• Single cylinder small engine management systems
• Ignition and fuel injection driver circuits

Application Specific Microcontrollers Procurement Notes

Verify orderable part numbers via NXP official channels as suffixes determine packaging. The 'R2' suffix indicates Tape & Reel availability. Confirm lead times and stock status directly with authorized distributors or sales representatives due to potential supply constraints.

Application Specific Microcontrollers Selection Notes

Select MM912KS812AMAF for applications requiring 256 kB program memory. Compare against MM912JS812AMAF if 128 kB flash is sufficient. Ensure thermal management meets the 1.7 W dissipation requirement at 25°C ambient. Verify external pass transistor compatibility for the VCC regulator circuit.

Application Specific Microcontrollers Part Context

This component belongs to the MM912_S812 family of SMARTMOS ICs. It combines the S12XS core with the MC33812 power stage. The 'K' designation specifically denotes the 256 kB flash memory variant within the package.

Application Specific Microcontrollers Replacement Considerations

MM912JS812AMAF offers identical functionality with 128 kB flash and 8 kB RAM. Calibration tools include MC9S12XEP100 for MCU-only testing and PV912NE812AMAF for combined calibration.