16-bit HCS12 core at 25 MHz — control-loop headroom
The S9S12G128F0MLH runs a 16-bit HCS12 core at 25 MHz, delivering enough throughput for real-time control loops in automotive body electronics, industrial actuators, and sensor hubs. The 128 KB on-chip flash (128K x 8) and 8 KB SRAM (8K x 8) support a CANopen stack, a bootloader, and application code without external memory. 4 KB EEPROM (4K x 8) stores calibration and configuration data across power cycles.
Industrial temperature grade and wide supply
The supply range spans 3.13 V to 5.5 V, allowing direct connection to a 5 V automotive battery rail or a 3.3 V regulated bus — no external LDO needed. The 64-LQFP (10x10 mm) package provides 54 GPIOs for parallel sensor inputs, display segments, or actuator drivers.
NXP lists the S9S12G128F0MLH as Active (current production) with ROHS3 compliance. The HCS12 family has a long production history, and the 64-LQFP footprint is shared with other S12G derivatives, simplifying second-source planning.
Peripheral set for CAN/LIN node designs
On-chip peripherals include LVD, POR, PWM, and WDT for brown-out protection and watchdog supervision. Connectivity covers CANbus, IrDA, LINbus, SCI, and SPI — covering the common automotive and industrial fieldbus interfaces. The 12-channel 10-bit ADC (A/D 12x10b) handles analog sensor inputs without an external converter.