ATMEGA168A-AU

The ATMEGA168A-AU is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology. It features 16KB of in-system self-programmable Flash memory, 1KB SRAM, and 512 bytes EEPROM with high endurance (10,000 Flash/100,000 EEPROM write/erase cycles) and data retention of 20 years at 85°C.

Operating at up to 20MHz, the device achieves 20 MIPS throughput. It includes a wide operating voltage range of 1.8V to 5.5V, making it suitable for both low-voltage and standard applications. Power consumption is low, with typical active mode current of 0.2mA at 1MHz and 1.8V, and power-down mode current of 0.1µA.

The microcontroller integrates 23 general-purpose I/O pins, an 8-channel 10-bit ADC, six PWM channels, three timers (two 8-bit, one 16-bit), and a watchdog timer. Communication interfaces include I2C, SPI, and UART/USART. It also features brown-out detect/reset, power-on reset, and programmable watchdog timer.

The ATMEGA168A-AU is supplied in a 32-TQFP (7x7mm) surface mount package. It is rated for operation from -40°C to 85°C ambient temperature. The device is part of the ATmega48A/PA/88A/PA/168A/PA/328/P family, sharing a common architecture and feature set. Note: The datasheet used for this part references the family and may not be fully verified for this specific variant.