These 64-pin devices are only available in TQFP surface-mount packages, which makes them tricky to use in development. This header board has a ATmega2561V microcontroller mounted on a PCB with standard 0.1-inch pitch headers for easy access to all pins. It can be used on its own or will plug straight into an STK300 AVR development board.

ATmega2561V Microcontroller Features

• CMOS 8-bit microcontroller
• 256K Bytes of In-System Programmable Flash
• 4K Bytes of In-System Programmable EEPROM
• 8K Bytes of SRAM
• Analog Comparator
• Watchdog
• SPI
• Timers and Real-Time Counter
• Programmable Serial USARTs
• 16-channel, 10-bit ADC
• PWM channels
• 16 MHz with most instructions running at 1 instruction/clock cycle
• Voltage Range 1.8V - 5.5V
• Frequency up to 8 MHz (2.7V to 5.5V; max 2 MHz below 2.7V)