Atmel Corporation ATMEGA1284P-AU 3rd Party Development Tools: EWAVR, EWAVR-BL Connectivity: I??C, SPI, UART/USART Controller Family/series: AVR MEGA Core: AVR8 Core Processor: AVR Core Size: 8-Bit Cpu Speed: 20MHz Data Bus Width: 8 bit Data Converters: A/D 8x10b Data Ram Size: 16 KB Data Rom Size: 4 KB Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRRAVEN, ATAVRRZUSBSTICK Device Core: AVR Eeprom Memory Size: 4KB Eeprom Size: 4K x 8 Family Name: ATmega Height: 1.05 mm Interface Type: 2-Wire, SPI, USART Length: 10.1 mm Maximum Clock Frequency: 20 MHz Maximum Operating Temperature: + 85 C Maximum Speed: 20 MHz Minimum Operating Temperature: - 40 C Mounting Style: SMD/SMT No. Of I/o's: 32 Number Of I /o: 32 Number Of Programmable I/os: 32 Number Of Timers: 3 On-chip Adc: 10 bit, 8 Channel Operating Supply Voltage: 2.5|3.3|5 V Operating Temperature: -40?°C ~ 85?°C Oscillator Type: Internal Package: 44TQFP Package / Case: 44-TQFP, 44-VQFP Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Processor Series: ATMEGA128x Program Memory Size: 128KB (64K x 16) Program Memory Type: FLASH Ram Memory Size: 16KB Ram Size: 16K x 8 Rohs Compliant: Yes Series: AVR?® ATmega Speed: 20MHz Supply Voltage (max): 5.5 V Supply Voltage (min): 1.8 V Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V Width: 10.1 mm Product Category: 8-bit Microcontrollers - MCU RoHS: yes Data RAM Size: 16 KB On-Chip ADC: Yes Data ROM Size: 4 KB Number of Programmable I/Os: 32 Number of Timers: 3 Factory Pack Quantity: 160 Supply Voltage - Max: 5.5 V Supply Voltage - Min: 1.8 V