50 MHz ColdFire V1 core for control applications
The MCF51JF64VHS is a 32-bit single-core microcontroller built around the ColdFire V1 processor, running at 50 MHz. This core architecture is a direct descendant of the ColdFire family, offering a straightforward migration path for designs moving from 16-bit to 32-bit performance without rewriting the control algorithm from scratch. With 64 KB of on-chip Flash program memory and 16 KB of RAM, this MCU handles moderate firmware footprints typical of motor-control loops, sensor fusion, or USB-bridged data acquisition. The 16 KB RAM provides enough headroom for a real-time operating system kernel plus a few hundred bytes of stack per task.
Peripheral set for industrial and USB connectivity
This combination suits it for applications that need to talk to a host PC via USB while simultaneously polling sensors over I²C or driving a small display over the parallel bus. The DMA controller offloads the CPU during high-rate ADC conversions or serial data transfers, preserving core cycles for the main loop.
This covers outdoor telecom enclosures, engine-bay-adjacent electronics, and factory-floor controllers that see seasonal temperature swings. The wide range also accommodates a single Li-ion cell (3.0-4.2 V) with margin on both ends.
Active lifecycle and compliance status
The part is ROHS3 compliant, meeting the latest restriction-of-hazardous-substances directive for European and global markets. No additional compliance documentation beyond the standard NXP declaration is needed for most commercial and industrial builds.
Housed in a 48-lead LQFP with a 7x7 mm body (0.50 mm pitch), the MCF51JF64VHS fits on a standard two-layer PCB with careful fan-out.