Nuvoton Technology M258KG6AE
M254/M256/M258 is a 32-bit low-power, low-leakage microcontroller series based on Arm Cortex-M23 core using Armv8-M architecture with COM/SEG LCD display driver and capacitive touch key functions for HMI of smart appliance; an USB 2.0 full speed device is also equipped to support the communication with PC/Mobile accessories. It runs up to 48 MHz and features 64 to 256 Kbytes Flash, 8 to 32 Kbytes SRAM, 1.75V to 5.5V wide operating voltage, 5V I/O tolerance, and -40℃ to +105℃ operating temperature. It features Low-power Technology The M254/M256/M258 series provides low power consumption in Normal Run mode 110 μA/MHz at 48 MHz, Power-down mode with 2.5 μA while RTC on and RAM retention, and it can supports down to 1.6uA while RTC off, and Deep Power-down mode is down to 1.5 μA.