Microchip ATMEGA644P-20PU, 8bit AVR Microcontroller, ATmega, 20MHz, 64 kB Flash, 40-Pin PDIP

8-Bit PicoPower megaAVR Family Microcontrollers. This range of megaAVR microcontrollers feature picoPower technology — perfect for energy saving. They offer generous program and data memories with performance of up to 20 MIPS. Features ; Benefits of picoPower megaAVR microcontrollers On-chip Flash SRAM Internal EEPROM SPI TWI (I²C) USART, USB, CAN ; LIN interfaces Watchdog timer Precision oscillator GPIO pins ADC DAC Built-in temperature sensor Internal voltage reference Brown-out detector