MINI-MAX/51-C2 is a general purpose, low-cost and highly expandable micro-controller system based on the ATMEL AT89C51ED2 single-chip Flash micro-controller.


  • ATMEL AT89C51ED2 8051 compatible Microcontroller
  • 64K Flash Memory, 2K RAM, 2K internal EEPROM
  • 512-byte Serial EEPROM ( up to optional 128-Kilobyte EEPROM )
  • 9-sources of 4-level Interrupts, Three 16-bit Timer/Counters
  • Programmable Counter Array with High Speed Output, Compare/Capture, Pulse Width Modulator (PWM)
  • Programmable Enhanced UART Serial Channel, RS232 Serial Port
  • Hardware SPI Serial Interface
  • Programmable Watchdog Timer, Brownout Detector
  • 32 general purpose I/O pins
  • In-circuit Programming/Debugging of the micro-controller through the serial port
  • 5-channel, 10-bit Analog/Digital Converter (ADC) with 4.096V internal or an external voltage reference source
  • Keypad connector, LCD connector ( with programmable contrast adjustment for LCD )
  • Expansion bus interface to low-cost peripheral boards
  • 6 Volts DC Adapter, serial cable, serial downloader, online technical manual and schematics