Mengenal ATmega16

AVR merupakan seri mikrokontroler CMOS 8-bit buatan Atmel,
berbasis arsitektur RISC (Reduced Instruction Set Computer). Hampir
semua instruksi dieksekusi dalam satu siklus clock. AVR mempunyai
32 register general-purpose, timer/counter fleksibel dengan mode
compare, interrupt internal dan eksternal, serial UART, programmable
Watchdog Timer, dan mode power saving, ADC dan PWM internal.

AVR juga mempunyai In-System Programmable Flash on-chip yang
mengijinkan memori program untuk diprogram ulang dalam sistem
menggunakan hubungan serial SPI. ATMega16.

ATMega16 mempunyai throughput mendekati 1 MIPS per MHz
membuat disainer sistem untuk mengoptimasi konsumsi daya versus
kecepatan proses.

Beberapa keistimewaan dari AVR ATMega16 antara lain:

1. Advanced RISC Architecture
- 130 Powerful Instructions – Most Single Clock Cycle Execution
- 32 x 8 General Purpose Fully Static Operation
- Up to 16 MIPS Throughput at 16 MHz
- On-chip 2-cycle Multiplier

2. Nonvolatile Program and Data Memories
- 8K Bytes of In-System Self-Programmable Flash
- Optional Boot Code Section with Independent Lock Bits
- 512 Bytes EEPROM
- 512 Bytes Internal SRAM
- Programming Lock for Software Security

3. Peripheral Features
- Two 8-bit Timer/Counters with Separate Prescalers and Compare Mode
- Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
- One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
- Real Time Counter with Separate Oscillator
- Four PWM Channels
- 8-channel, 10-bit ADC
- Byte-oriented Two-wire Serial Interface
- Programmable Serial USART

4. Special Microcontroller Features
- Power-on Reset and Programmable Brown-out Detection
- Internal Calibrated RC Oscillator
- External and Internal Interrupt Sources
- Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Powerdown,
- Standby and Extended Standby

5. I/O and Package
- 32 Programmable I/O Lines
- 40-pin PDIP, 44-lead TQFP, 44-lead PLCC, and 44-pad MLF

6. Operating Voltages
- 2.7 - 5.5V for Atmega16L
- 4.5 - 5.5V for Atmega16



Gambar 1 Pin-pin ATMega16 kemasan 40-pin

Pin-pin pada ATMega16 dengan kemasan 40-pin DIP (dual inline
package) ditunjukkan oleh gambar 1. Guna memaksimalkan
performa, AVR menggunakan arsitektur Harvard (dengan memori dan
bus terpisah untuk program dan data).

Untuk lebih lengkapnya silahkan download datasheet ATmega16
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