Model:MKL03Z32CAF4R BRAND:NXP SERIES:Kinetis KL03 pack:tape (TR),Shear zone(CT),Digi-Reel? Part status:in stock Core processor:ARM? Cortex?-M0+ speed:48MHz Coprocessor/DSP:I2C,SPI,UART/USART RAM Controller:Undervoltage detection/reset,LVD,POR,PWM,WDT Voltage:1.71V ~ 3.6V Operating temperature:A/D 7x12b Safety features:interior Encapsulation/Shell:-40°C ~ 85°C(TA) Supplier device packaging:Surface mount type description:IC MCU 32BIT 32KB FLASH 20WLCSP