56800EX at 100 MHz — what it means for the control loop
The NXP MC56F82746VLFR is a 32-bit single-core MCU built around the 56800EX core, clocked at 100 MHz. It carries 64 KB of program Flash and 4K x 16 of RAM, enough for a moderate field-oriented control (FOC) stack or a CANopen node with local I/O. The 100 MHz rating is the real throughput ceiling for the DSP-style multiply-accumulate operations this core is designed for — expect a single-cycle MAC at that clock, which directly sets the PWM update rate and current-loop bandwidth in a motor-drive application.
Peripheral set for industrial connectivity
On the connectivity side you get CANbus, I2C, SCI (UART), and SPI — the usual set for linking to an inverter stage, an encoder interface, or a fieldbus gateway. The 39 I/O lines in the 48-LQFP package leave room for a few local sensors and a keypad or display. The integrated PWM and DMA peripherals offload the core for time-critical tasks like dead-time insertion and ADC synchronization.
Package and footprint
The 48-LQFP (7x7 mm) body is a common footprint shared across the 56F8xxx family. The exposed pad (if present — check the mechanical drawing) should be stitched to ground with thermal vias if the part dissipates more than a few hundred milliwatts.
Lifecycle and sourcing posture
The MC56F82746VLFR is listed as Active with ROHS3 compliance.