STM32L011E4Y6TR,integrated circuit Embedded microcontroller STMicroelectronics package rewind Core processor ARM® Cortex®-M0+ Core specification 32-bit single core speed 32MHz Connection ability I²C，IrDA，SPI，UART/USART peripheral device Undervoltage detection/reset, DMA, POR, PWM, WDT I/O number Twenty-one Program storage capacity 16KB（16K x 8） Program memory type flash memory EEPROM capacity 512 x 8 RAM size 2K x 8 Voltage-supply (Vcc/Vdd) 1.65V ~ 3.6V data converter A/D 10x12b Oscillator type inside Working temperature -40°C ~ 85°C（TA） Installation type Surface mount type Package/housing 25-UFBGA，WLCSP Supplier device package 25-WLCSP