The ATMEGA8A-AU is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. It
8 KB of in-system self-programmable Flash program memory, 512 bytes of EEPROM and 1 KB of internal SRAM. It includes 23 programmable I/O lines, three flexible timer/counters with compare modes, a serial programmable USART, an SPI serial port, a byte-oriented two-wire serial interface, a 6-channel 10-bit ADC and a programmable watchdog timer with internal oscillator. The device operates at voltages from 2.7 V to 5.5 V with speeds up to 16 MHz. Several software-selectable power saving modes are available.


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