56800E core at 80 MHz — what the clock buys you
The MC56F8156VFV is a 56800E-core digital signal controller running at 80 MHz. That clock rate puts it in the mid-range of the 56F8xxx family — enough headroom for a single motor-control loop or a comms stack without hitting the wall, but not the top bin if you're doing simultaneous FFTs and fieldbus traffic.
Peripheral set and voltage tolerance
The I/O bank accepts 3.3 V or 5.0 V levels, so it interfaces directly with legacy 5 V sensors or opto-couplers without external level shifters — one less part on the BOM. On-chip peripherals include I²C, SCI (UART), and SPI, covering the common serial buses for industrial control. Operating temperature spans -40°C to 105°C, which is the industrial grade. It lives in an unventilated enclosure on a hot factory floor or inside a motor junction box without thermal derating.
Housed in a 144-pin LQFP with a 20x20 mm body (0.5 mm pitch). The exposed pad on the underside needs a thermal via array to the ground plane — without it, the junction temperature at 105°C ambient and full I/O drive will exceed the 125°C abs-max ceiling.