STM32L451RCT6 is an ultra-low-power microcontroller based on the high-performance Arm? Cortex?-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision that supports all Arm? single-precision data-processing instructions and data types. The Operating and Storage Temperature Range is between -40 and 85℃. And the Transistor STM32L451RCT6 is in the LQFP-64 package.