Single chip microcontroller

DB I.MX21 PB-FR-Core: Number of cores (SPEC)-SRAM (kB) supports external memory Serial Communication-I2S-CAN-Serial Audio Interface (SAI)-EthernetGPIOUSB ControllersTimer (bits)-PWM-ADC [Number, bits]Supply Voltage [Min to Max] (V) Ambient Operating Temperature (Min to Max) (℃)

i.MX 6 series 32-bit MPU, ARM Cortex-A9 core, 800MHz, ARM Cortex-M4 core, 166MHz, BGA 400Arm Cortex-A9Core: Number of cores (SPEC)1SRAM (kB)128 Support external memory DDR3 SDRAM, DDR3L SDRAM, ECC, LPDDR2 DRAM, NAND FLASH, NOR FLASH, ONFI2.2, QSPISerial Communication4 x I?C, 5 x SPI, 6 x UARTI2S-CAN-Serial Audio Interface (SAI)-EthernetGPIOUSB ControllersTimer (bits)-PWM8ADC [Number , bits]2 x 12Supply Voltage [Min to Max] (V) Ambient Operating Temperature (Min to Max) (℃)