Specification:

• 2K Bytes Flash
• 128 Bytes EEPROM
• 128 Bytes Internal SRAM
• Programming Lock Flash Program dan EEPROM Data Security
• 1 8-bit Timer/Counter Separate Prescaler and Compare Mode
• 1 16-bit Timer/Counter Separate Prescaler, Compare and Capture Modes
• 4 PWM Channels
• On-chip Analog Comparator
• Programmable Watchdog Timer with On-chip Oscillator
• USI – Universal Serial Interface
• Full Duplex USART
• In-System Programmable via SPI Port
• External and Internal Interrupt Sources
• Low-power Idle, Power-down, and Standby Modes
• Enhanced Power-on Reset Circuit
• Programmable Brown-out Detection Circuit
• Internal Calibrated Oscillator

AT89C2051 AVR Microcontroller 8bit ( Atmel )