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AT89C51ED2 Controller Board - Technical Data

Microcontroller
  • Microcontroller: AT89C51ED2
  • Manufacturer: Atmel / Microchip
  • Main Crystal: 29.4912MHz
  • Speed: Adjustable
  • Processor Language: 8051

Memory
  • Program Flash Memory (Internal): 64kBytes
  • RAM Memory - Scratchpad (Internal): 256 Bytes
  • RAM Memory - Expanded (Internal): Up to 1792 Bytes
  • EEPROM Memory (Internal): 2 kBytes
  • EEPROM Memory (External): up to 256 kBytes (Optional 24LCXX)

Input/Output
  • I/O Points Available: 32
  • I/O Points Connection: IDCC Connector

Clocks/Timers
  • Timers: Yes - Three 16-bit Timers
  • Programmable Counter Array: Yes - 16-bit
  • Real Time Clock: Yes - DS1307 Optional
  • Real Time Clock Battery Backup: Yes

Communication
  • RS232 Communication: Yes
  • SPI Communication: Yes

Ancillary Features
  • In-Circuit Programming: Yes
  • Power-On Led: Yes - Red
  • Reset Button: Yes
  • PSEN Button: Yes

Power Supply
  • Power-Supply: 5 Vdc

Dimensions
  • LxWxH: 82mm x 62mm x 25mm (Including mounting supports)

Parts Supplied
  • Included Parts: AT89C51ED2 Controller, Parallel Download Adapter, Download Software, Manual on CD, Examples and Sample Code, Data Sheets on CD.

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