The Microchip ATMEGA88PA is a low-power 8-bit AVR MCU running up to 20 MHz with 8 KB Flash, 1 KB SRAM, and 512 B EEPROM. Featuring 23 GPIOs, 6-channel 10-bit ADC, PWM, timers, USART, SPI, I²C, and an analog comparator, it supports multiple low-power modes and operates from 1.8–5.5 V. Available in PDIP, TQFP, and QFN/MLF packages, it is ideal for industrial, consumer, and IoT applications.