Ultra-low-power with FPU Arm Cortex-M33 with Trust Zone, MCU 110 MHz with 512 kbytes of Flash memory

Ultra-low-power Arm Cortex-M0+ MCU with 128-Kbytes of Flash memory, 32 MHz CPU, USB, LCD
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Ultra-low-power Arm Cortex-M0+ MCU with 192-Kbytes of Flash memory, 32 MHz CPU, USB, LCD