Active production, 8-bit HC08 core with 32 KB FLASH
The MC908MR32VBE is an active-production 8-bit microcontroller from NXP's HC08 series, built around the HC08 core running at 8 MHz. The 32 KB on-chip FLASH (32K x 8) and 768 bytes of RAM (768 x 8) provide enough code and data space for moderate-complexity control applications — think motor commutation loops, sensor fusion, or serial protocol bridges. The 56-PSDIP through-hole package (56-SDIP, 0.600" body width, 15.24 mm pitch) makes this part a natural fit for prototyping runs, rework-friendly designs, or legacy board spins where a QFP or BGA would complicate the assembly process. The through-hole body also handles repeated thermal cycling better than fine-pitch SMD packages in high-vibration environments.
Peripheral set and I/O budget for sensor-actuator control
36 general-purpose I/O lines give this MCU enough headroom to interface with a keypad, a small character LCD, and a handful of discrete sensors without an external port expander. The 10-channel, 10-bit ADC captures analog signals from potentiometers, thermistors, or current-sense resistors directly — no external ADC needed for 10-bit resolution applications. On-chip peripherals include Low-Voltage Detect (LVD) for brown-out protection, Power-On Reset (POR) for clean startup, and a PWM module for driving small DC motors, solenoids, or LED dimming. The SCI (UART) and SPI serial interfaces handle communication with external EEPROM, digital potentiometers, or a host controller over a simple two-wire or four-wire bus. For applications requiring tighter timing accuracy, an external clock source can still be fed into the oscillator input.
Supply range and temperature grade for industrial deployment
ROHS3 compliance means the part is fully lead-free and compatible with current RoHS assembly processes — no special handling or exemption paperwork needed for EU-market products.
Sourcing posture for volume and MRO replenishment
The active status also means NXP continues to support this device with datasheets, application notes, and errata documentation.