ATmega8535 40-pin Microcontroller
40-pin DIP-packaged RISC microcontroller with 8K byte program memory, 512 byte SRAM and 512 byte EEPROM data memory, 32 I/O lines, 8-channel 10-bit A/D, analogue comparator, three timers, four-channel PWM plus two-wire serial, SPI serial and USART interfaces.
