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ATMEGA8A-PU

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Product Specification

• 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

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Product Details

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.

32 general purpose working registers and a robust instruction set are combined in the AVR core. Since each of the 32 registers is directly coupled to the ALU, two separate registers may be accessed in a single instruction that is executed in a single clock cycle. In comparison to traditional CISC microcontrollers, the resultant design is quicker and more code-efficient.

A complete set of system and programme development tools, including as compilers, macro assemblers, programme debugger/simulators, in-circuit emulators, and evaluation kits, are available for use with the device.

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.


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