100 MHz Cortex-M4 with FPU in a compact 48-pin package
It packs 512 KB of Flash and 128 KB of RAM, giving it enough headroom for sensor fusion, motor control loops, or USB-connected peripherals without external memory. The 48-UFQFPN package with exposed pad keeps the board area tight while the pad pulls heat into the ground plane — no lab bench needed for a swap, but the orientation is marked with pin 1 dimple, and the pad solder paste coverage is worth checking on the first reflow.
What the 100 MHz core and 512 KB Flash mean for your BOM
At 100 MHz, this part runs single-cycle multiply-and-accumulate for DSP-style filtering or FFTs — useful if you are doing real-time vibration analysis or audio processing on a motor drive. The 128 KB RAM handles a couple of large data arrays or a USB buffer without spilling to external SRAM, which saves a package pin and a board layer.
The 36 I/O lines in the 48-pin package leave a few spare for panel switches or LED indicators after the main interfaces are wired.
The TR suffix means it ships in Tape & Reel, which is the standard for pick-and-place assembly; the CT variant is cut tape for prototyping runs.