IC ATMega8A-16PU DIP

Microcontroller ATMega8A digunakan untuk proyek anda, bisa untuk arduino dan lain sebagainya.

Bisa diisi bootloader Arduino Optiboot 16MHz crystal atau kosongan. gratis

The ATmega8A is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega8A achieves throughputs approaching 1 MIPS per MHz, allowing the system designer to optimize power consumption versus processing speed.

Features

• High-performance, Low-power 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 16 MIPS Throughput at 16 MHz
  • On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory segments
  • 8K Bytes of In-System Self-programmable Flash program memory
  • 512 Bytes EEPROM
  • 1K Byte Internal SRAM
  • Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
  • Data retention: 20 years at 85°C/100 years at 25°C
  • 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
• 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
  • 8-channel ADC in TQFP and QFN/MLF package
    • Eight Channels 10-bit Accuracy
  • 6-channel 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
• Operating Voltages
  • 2.7 - 5.5V
• Speed Grades
  • 0 - 16 MHz
• Power Consumption at 4 Mhz, 3V, 25°C
  • Active: 3.6 mA
  • Idle Mode: 1.0 mA
  • Power-down Mode: 0.5 μA

Sejak arduino Uno, Arduino menggunakan optiboot untuk bootloadernya. Sehingga membutuhkan hanya sedikit space memori hanya 512 byte saja dan bisa berjalan dengan kecepatan serial pada 115200. Untuk mengubahnya cukup masukkan pada board.txt di \hardware\arduino\board.txt pada software arduino 1.0 ke atas

##############################################################

atmega8optiboot.name=ATmega8 (optiboot, 16Mhz XTAL)

atmega8optiboot.upload.protocol=arduino
atmega8optiboot.upload.maximum_size=7680
atmega8optiboot.upload.speed=115200

atmega8optiboot.bootloader.low_fuses=0xBF
atmega8optiboot.bootloader.high_fuses=0xCC
atmega8optiboot.bootloader.path=optiboot
atmega8optiboot.bootloader.file=optiboot_atmega8.hex
atmega8optiboot.bootloader.unlock_bits=0x3F
atmega8optiboot.bootloader.lock_bits=0x0F

atmega8optiboot.build.mcu=atmega8
atmega8optiboot.build.f_cpu=16000000L
atmega8optiboot.build.core=arduino
atmega8optiboot.build.variant=standard

Selanjutnya tinggal burn saja.