- The Atmel® ATmega8A is a low-power CMOS 8-bit microcontroller based on the AVR® enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega8A achieves throughputs close to 1MIPS per MHz. This empowers system designer to optimize the device for power consumption versus processing speed
- Features
- High-performance, Low-power Atmel AVR 8-bit Microcontroller
- Advanced RISC Architecture
- – 130 Powerful Instructions – Most Single-clock Cycle Execution
- – 32 x 8 General Purpose Working Registers
- – Fully Static Operation
- – Up to 16MIPS Throughput at 16MHz
- – On-chip 2-cycle Multiplier
- High Endurance Non-volatile Memory segments
- – 8KBytes of In-System Self-programmable Flash program
- memory
- – 512Bytes EEPROM
- – 1KByte Internal SRAM
- – Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
- – (Data retention: 20 years at 85°C/100 years at 25°C(1
- – Optional Boot Code Section with Independent Lock Bits
- In-System Programming by On-chip Boot Program
- True Read-While-Write Operation
- – Programming Lock for Software Security
- Atmel QTouch® library support
- – Capacitive touch buttons, sliders and wheels
- – Atmel QTouch and QMatrix acquisition
- – Up to 64 sense channels
- Peripheral Features
- – Two 8-bit Timer/Counters with Separate Prescaler, one Compare Mode
- – One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
- – Real Time Counter with Separate Oscillator
- – Three PWM Channels
- – 8channel ADC in TQFP and QFN/MLF package
- Eight Channels 10-bit Accuracy
- – 6channel ADC in PDIP package
- Six Channels 10-bit Accuracy
- – Byte-oriented Two-wire Serial Interface
- – Programmable Serial USART
- – Master/Slave SPI Serial Interface
- – Programmable Watchdog Timer with Separate On-chip Oscillator
- – On-chip Analog Comparator
- Special Microcontroller Features
- – Power-on Reset and Programmable Brown-out Detection
- – Internal Calibrated RC Oscillator
- – External and Internal Interrupt Sources
- – Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby
- I/O and Packages
- – 23 Programmable I/O Lines
- – 28-lead PDIP, 32-lead TQFP, and 32-pad QFN/MLF
- Operating Voltages
- – 2.7 – 5.5V
- Speed Grades
- – 0 – 16MHz
- Power Consumption at 4MHz, 3V, 25°C
- – Active: 3.6mA
- – Idle Mode: 1.0mA
- – Power-down Mode: 0.5μA
- Package: DIP28 – DIP 28 – DIP-28
- میکروکنترلر AVR
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