Brand: Atmel AVR ATMEGA16A-PU Data Bus Width: 8 bit Maximum Clock Frequency: 8 MHz Program Memory Size: 16kB Data RAM Size: 1kB A/D Channels Available: 8 A/D Bit Size: 10 bit Operating Supply Voltage: 2.7 V to 5.5 V Maximum Operating Temperature: + 85 C Package / Case: PDIP-40 Data RAM Type: SRAM Data ROM Size: 512 B Data ROM Type: EEPROM Interface Type: JTAG, SPI, USART Minimum Operating Temperature: - 40 C Number of I/Os: 32 I/O Number of Timers: 3 Timer On-Chip ADC: Yes Supply Voltage : 2.7V - 5.5 V