ATMEGA168A-MU

The ATMEGA168A-MU is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology, part of the megaAVR family. It features an advanced RISC architecture with 131 instructions, most executed in a single clock cycle, achieving up to 20 MIPS throughput at 20MHz. The device includes 16KB of in-system self-programmable Flash memory, 1KB SRAM, and 512B EEPROM with high endurance (10,000 write/erase cycles for Flash, 100,000 for EEPROM). Data retention is rated at 20 years at 85°C and 100 years at 25°C.

Peripheral features include 23 programmable I/O lines, two 8-bit timers, one 16-bit timer, six PWM channels, an 8-channel 10-bit ADC, and serial interfaces (USART, SPI, I2C). Additional capabilities include a programmable watchdog timer, brown-out detect, power-on reset, internal calibrated oscillator, and QTouch capacitive touch sensing support. The microcontroller offers six sleep modes, with typical power consumption as low as 0.1µA in power-down mode and 0.75µA in power-save mode, making it suitable for battery-powered applications.

The ATMEGA168A-MU is supplied in a 32-VFQFN exposed pad package (32-VQFN, 5x5mm) for surface mount assembly. It operates over a voltage range of 1.8V to 5.5V and a temperature range of -40°C to 85°C. This device is ideal for embedded control systems, industrial automation, consumer electronics, and sensor nodes requiring low power and high performance.