• AVR 8-bit Microcontroller with High Performance and Low Power
• RISC-ADVANCED Architecture
-130 potent instructions, most of which execute in a single clock cycle.
- General-purpose working registers, 32 x 8
- Complete static operation
- A throughput of up to 16 MIPS at 16 MHz
- 2-cycle on-chip multiplier
• Unique Microcontroller Functions
- Programmable and power-on reset Detection of brownouts
- Internal RC oscillator with calibration
- Interrupt sources both internal and external
- Idle, ADC noise reduction, power-save, power-down, and standby are the five sleep modes.
• Packages and I/O
- 23 lines of programmable I/O
- 32-lead TQFP, 32-pad QFN/MLF, and 28-lead PDIP
Running Voltages
- 2.7 - 5.5V
• Grades of speed
- 0 - 16 MHz
• Power Usage at 4 MHz, 3 V, and 25 °C
- Current: 3.6 mA
- 1.0 mA in idle state
- 0.5 A in power-down mode
An 8-bit low-power CMOS microcontroller built on the AVR improved RISC architecture is called the ATmega8A. The ATmega8A achieves throughputs near to 1 MIPS per MHz by processing strong instructions in a single clock cycle. This gives system designers the ability to balance the device's power use and processing performance.
High density nonvolatile memory technology from Microchip is used in the creation of the product. Through an SPI serial interface, a typical nonvolatile memory programmer, or an on-chip Boot software running on the AVR core, the on-chip ISP Flash enables In-System reprogramming of the programme memory. The application software in the Application Flash memory can be downloaded by the Boot programme via any interface. The Application Flash part will be updated while the software in the Boot Flash area is still operating, enabling real Read-While-Write functioning. The ATmega8A is a potent microcontroller that offers a highly versatile and economical solution to many embedded control applications by combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic device.
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