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Sub-GHz Wireless Microcontrollers. Arm Cortex-M4 @48 MHz with 256 Kbytes of Flash memory, 64 Kbytes
Mainstream Value-Line Arm Cortex-M0+ MCU with 64 Kbytes of Flash memory, 8 Kbytes RAM, 64 MHz CPU, 2
Mainstream Arm Cortex-M0+ MCU with 128 Kbytes of Flash memory, 36 Kbytes RAM, 64 MHz CPU, 4x USART,
Programmable Bluetooth Low Energy 5.3 Wireless SoC
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32 MHz with 512 Kbytes of Flash memor
±15kV ESD protection 3 to 5.5V low power, up to 250kbps, RS-232 drivers and receivers