16-bit 56800E core at 32 MHz — control-loop throughput
The MC56F8011VFAE is a 16-bit microcontroller built around the NXP 56800E core, clocked at 32 MHz. This is a hybrid DSP/MCU architecture — the single-cycle multiply-accumulate and barrel shifter handle real-time control loops (PID, FOC, digital filters) without a separate DSP coprocessor. Program memory is 12 KB of on-chip flash (6K x 16), with 1K x 16 of RAM. For a motor-control firmware image — sensorless observer, current loops, commutation tables — this fits a compact application. The flash is self-programmable, so field firmware updates are possible over the SCI or I²C bootloader.
Industrial temperature grade and peripheral set
A motor drive in a non-conditioned enclosure or a power converter near a heatsink sees 85°C internal air — the 20°C margin above that covers the self-heating of the MCU itself. On-chip peripherals include a PWM module with fault inputs (for inverter shoot-through protection), a watchdog timer, power-on reset, and a 6-channel 12-bit ADC. The ADC samples synchronously with the PWM timer — the trigger can be aligned to the PWM carrier valley, so current sensing happens at the zero-voltage switching instant without software jitter. Serial interfaces are I²C, SCI (UART), and SPI — enough for a sensor hub (hall-effect encoder via SPI, temperature via I²C) or a fieldbus gateway (SCI to an RS-485 transceiver). 26 general-purpose I/O lines are available in the 32-pin LQFP package.
Package, footprint, and storage
Housed in a 32-LQFP with a 7x7 mm body and 0.80 mm pitch. The LQFP profile is low enough for 10 mm board-to-board spacing in a stacked enclosure. ROHS3 compliant, so no RoHS exemption expiry to track for EU-market BOMs. Supplied in tray format; the MSL level is not stated in this record, but LQFP packages are typically MSL 3 — store the reels dry or bake before reflow if the moisture-barrier bag is punctured.