ATmega48A/PA/88A/PA.pdf

The ATmega48A/PA/88A/PA/168A/PA/328/P is a low-power, 8-bit microcontroller with high performance, advanced RISC architecture, and low power consumption. It features 131 powerful instructions, 32 general-purpose working registers, and a fully static operation, allowing for up to 20 MIPS throughput at 20MHz. The device has high-endurance non-volatile memory segments, including 4/8/16/32KBytes of in-system self-programmable flash program memory, 256/512/512/1KBytes EEPROM, and 512/1K/1K/2KBytes internal SRAM. It also supports in-system programming, true read-while-write operation, and QTouch library support for capacitive touch buttons, sliders, and wheels. The microcontroller has various peripheral features, including timer/counters, PWM channels, ADC, temperature measurement, serial interfaces, and a programmable watchdog timer. It operates at a voltage range of 1.8-5.5V, a temperature range of -40°C to 85°C, and has a speed grade of 0-20MHz. The device has low power consumption, with an active mode current of 0.2mA at 1MHz, 1.8V, and 25°C, and a power-down mode current of 0.1µA.