The ATMEGA168A-PU is a high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller combining 16KB ISP flash memory, 512-Byte EEPROM, 1KB SRAM, 23 general purpose I/O lines, 32 general-purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented 2-wire serial interface, SPI serial port, a 6-channel 10-bit A/D converter (8 channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. This device offers the power of the AVR architecture with a wide range of features and high integration levels.

The ATMEGA168A-PU operates between 1.8-5.5 volts. By executing powerful instructions in a single clock cycle, the ATMEGA168A-PU achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed. It is designed for more complex applications, where a small form factor and low power consumption are critical, such as portable devices, remote sensors, and handheld instruments.

Key Features:

• Advanced RISC Architecture – High performance with low power consumption.
• In-System Programmable Flash – 16KB of memory for storing complex programs.
• EEPROM and SRAM – 512 Bytes and 1KB respectively, for non-volatile data storage and efficient data handling.
• Peripheral Features – Includes I/O lines, USART, SPI, and 2-wire serial interface for versatile communication options.
• Analog to Digital Converter – 6 to 8-channel, 10-bit resolution for accurate analog signal reading.
• Power Efficiency – Five different power-saving modes to optimize battery life.
• Speed – Up to 20 MHz throughput at 20 MHz.

The device is packaged in a 28-pin PDIP (Plastic Dual Inline Package), making it suitable for prototyping and small-scale production. With its extensive set of features and capabilities, the ATMEGA168A-PU is an excellent choice for a multitude of embedded system applications.

Whether you're designing industrial controls, consumer products, or any application requiring a compact, efficient, and versatile microcontroller, the ATMEGA168A-PU by Microchip Technology is a robust solution that delivers performance, flexibility, and reliability.