C912ZVML31L0WKFR

Overview

The C912ZVML31L0WKFR is a 16-bit microcontroller from the NXP S12ZVM MagniV family, designed for automotive motor control applications. It features an enhanced S12Z core with a maximum clock frequency of 50 MHz and integrates 32 kB of Flash memory, 4 kB of RAM, and 128 B of EEPROM. The device operates within a voltage range of 1.72 V to 1.98 V and supports temperatures from -40°C to +150°C. Key peripherals include dual 12-bit ADCs, six PWM channels, and integrated LIN physical layer capabilities.

Feature Summary

• Integrated high-voltage analog modules including gate drive units (GDU) for driving up to six external power MOSFETs
• Enhanced S12Z core optimized for efficient code size and low power consumption in embedded environments
• Built-in functional safety support through SafeAssure program compliance with ISO 26262 standards
• Synchronized programmable trigger unit (PTU) enabling simultaneous conversion on dual 12-bit ADCs

Applications

• Three-phase sensorless BLDC motor control for fuel pumps, water pumps, and oil pumps
• Brushed DC motor control for reversible wipers and tailgate openers
• HVAC blower and engine cooling fan drives in automotive systems
• Electric vehicle battery cooling fan applications

Procurement Notes

Verify the specific suffix L0WKFR against official NXP documentation to confirm package type, temperature grade, and tape-and-reel configuration. Ensure compatibility with existing PCB footprints and thermal management requirements for the LQFP-EP package. Confirm that the 1.72 V to 1.98 V supply range aligns with your system's power architecture before integration.

Selection Notes

Select this component when designing automotive motor drives requiring integrated high-side and low-side gate drivers alongside precise current sensing. The inclusion of a LIN physical layer makes it suitable for networked motor applications. Consider the 50 MHz processing speed and 32 kB Flash capacity for complex control algorithms while maintaining cost efficiency compared to higher-end MCUs.

Part Context

This part belongs to the S12ZVM mixed-signal MCU family, which combines standard 16-bit microcontroller functionality with specialized high-voltage analog blocks. The series is engineered to reduce system complexity by integrating components typically found in discrete solutions, such as regulators and gate drivers, into a single chip for space-constrained automotive designs.

Replacement Considerations

Check NXP documentation for direct pin-to-pin replacements within the S12ZVM family, such as variants with different memory sizes or package options. Verify if older S12ZVL or S12ZVC series parts offer backward compatibility for firmware migration.