Device Core = ARM / Data Bus Width bit = 16 / Data Bus Width bit = 32 / Instruction Set Architecture = RISC / Family Name = AT91 / Clock Frequency Max. MHz = 55 / Program Memory Type = Flash / Program Memory Size kB = 64 / RAM Memory Size kB = 16 / Interfaces = I²C / Interfaces = SPI / Interfaces = USART / Interfaces = USB / ADC Channels = 8 / ADC Resolution bit = 10 / Number of Programmable I/Os = 32 / Number of Timers/Counters = 3 / Supply Voltage Min. V = 1.65 / Supply Voltage Max. V = 1.95 / Operating Temperature Min. °C = -40 / Operating Temperature Max. °C = 85 / Package Type = LQFP / Pins = 64 / Mounting Type = SMD / MSL = Level-3 / Packaging = Tray / Length mm = 10 / Width mm = 10 / Height mm = 1.45 / Reflow Temperature Max. °C = 260