8-bit MCU with integrated EEPROM and CAN for harsh environments
The NXP MC9S08DZ128MLH is an 8-bit microcontroller from the S08 family, built around a 40 MHz S08 core with 128 KB of Flash program memory, 8 KB RAM, and 2 KB on-chip EEPROM. It integrates a 24-channel 12-bit ADC, a CAN 2.0 A/B controller, LIN, I²C, SPI, and two SCI (UART) modules, plus peripherals including LVD, POR, PWM, and WDT. The wide 2.7 V to 5.5 V supply range and -40°C to 125°C operating temperature qualify it for automotive body electronics, industrial motor drives, and outdoor control nodes where both temperature extremes and communication buses are present.
On-chip EEPROM eliminates external parameter storage
The 2 KB EEPROM is a practical differentiator: calibration constants, fault logs, or configuration tables live on-chip, removing the need for a separate serial EEPROM and its associated I²C or SPI bus traffic. For a motor-drive node storing winding-resistance compensation values or a body controller holding VIN-specific trim data, that saves a component and a PCB trace.
The 64-pin LQFP (10x10 mm body) brings out 53 general-purpose I/O pins. That count supports parallel LCD data buses, keypad matrices, or multiple chip-select lines alongside the serial interfaces.