ATMEGA8A-PU

1. Core:
   • 8-bit AVR RISC microcontroller with a maximum clock speed of 16 MHz.
2. Memory:
   • Flash Memory: 8 KB for program storage.
   • SRAM: 1 KB for data storage.
   • EEPROM: 512 bytes for non-volatile data storage.
3. I/O:
   • Digital I/O: 23 general-purpose I/O pins.
   • Analog Input: 6-channel 10-bit ADC (Analog-to-Digital Converter).
4. Timers:
   • 3 Timers: 2 8-bit timers and 1 16-bit timer for accurate timing and event generation.
5. Communication Interfaces:
   • USART: Universal Synchronous and Asynchronous Serial Receiver and Transmitter.
   • SPI: Serial Peripheral Interface.
   • I2C: Inter-Integrated Circuit (also known as TWI in AVR terminology).
6. Power Management:
   • Low Power Modes: Various sleep modes to help extend battery life in portable and low-power applications.
7. Package:
   • Available in a 28-pin PDIP (Plastic Dual In-line Package), which is easy to handle and suitable for prototyping and production.
8. Operating Voltage:
   • Operates from 2.7V to 5.5V, providing flexibility for different power supply requirements.
9. Additional Features:
   • Internal Oscillator: 8 MHz internal oscillator for clock generation.
   • Watchdog Timer: Integrated watchdog timer to reset the microcontroller in case of software malfunctions.
   • Brown-Out Detection: Monitors the supply voltage and ensures operation only within a safe range.
10. Applications:
    • Ideal for a range of embedded applications including consumer electronics, automotive systems, and industrial control.

The ATMEGA8A-PU offers a balance of performance, memory, and flexibility, making it suitable for a wide array of embedded projects and applications.