NXP HCS12X 16-bit MCU, S912XD128F2MAL-FR, 80 MHz core, 128 KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 91 I/O, CANbus/LINbus/SCI/SPI/I²C, -40 to 125°C, 112-LQFP.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.35V ~ 2.75V |
| Operating temperature | -40°C ~ 125°C (TA) |
| Speed | 80MHz |
| Package | Tray |
| RAM size | 8K x 8 |
| Core size | 16-Bit |
| EEPROM size | 2K x 8 |
| Peripherals | LVD, POR, PWM, WDT |
| Connectivity | CANbus, EBI/EMI, I²C, IrDA, LINbus, SCI, SPI |
| Number of i (O) | 91 |
| Core processor | HCS12X |
| Case | 112-LQFP |
| Data converters | A/D 16x10b SAR |
| Program memory size | 128KB (128K x 8) |
The NXP S912XD128F2MAL-FR is a 16-bit microcontroller built around the HCS12X core, running at 80 MHz. It carries 128 KB of Flash program memory, 8K x 8 of RAM, and 2K x 8 of EEPROM — enough for moderate firmware loads in body control, sensor fusion, or motor drive applications.
It is ROHS3 compliant.
The HCS12X core runs at 80 MHz. That is the headline throughput for this 16-bit MCU; bus timing and peripheral clock dividers are derived from it.
A functional peer is the NXP MK51DX128CMC7, a 32-bit ARM Cortex-M4 MCU with 128 KB Flash and 72 MHz core. The architecture differs (ARM vs HCS12X), so code is not portable, but the memory density and peripheral set overlap for similar control applications.
Programming is done via the standard HCS12 background debug module (BDM) interface. Most NXP toolchains and third-party programmers (PEmicro, Segger) support the HCS12X family. The 128 KB Flash is organized as 128K x 8 and can be programmed in-page or mass-erase mode.