ATMEGA644A-MU Microchip Technology

Description: IC MCU 8BIT 64KB FLASH 44VQFN, Packaging: Tray, Package / Case: 44-VFQFN Exposed Pad, Mounting Type: Surface Mount, Speed: 20MHz, Program Memory Size: 64KB (32K x 16), RAM Size: 4K x 8, Operating Temperature: -40°C ~ 85°C (TA), Oscillator Type: Internal, Program Memory Type: FLASH, EEPROM Size: 2K x 8, Core Processor: AVR, Data Converters: A/D 8x10b, Core Size: 8-Bit, Voltage - Supply (Vcc/Vdd): 1.8V ~ 5.5V, Connectivity: I2C, SPI, UART/USART, Peripherals: Brown-out Detect/Reset, POR, PWM, WDT, Supplier Device Package: 44-VQFN (7x7), Part Status: Active, Number of I/O: 32, DigiKey Programmable: Not Verified.