AT89C5131 USB Development Board - Technical

Microcontroller

• Microcontroller: AT89C5131
• Main Crystal: 24.000MHz
• Speed: 24.000MHz
• Processor Language: 8051

Memory

• Program Flash Memory (Internal): 32kBytes
• RAM Memory (Internal): 1kByte
• EEPROM Memory (Internal): 4kBytes
• EEPROM Memory (External): 64kBytes (24LC512 Optional)

Input/Output

• I/O Points Available: 34
• I/O Points Connection: 34 Way IDCC Connectors
• I2C Expansion Connection: 10 Way IDCC Connector
• USB Connection: Standard USB Connector + 5 Way Polarized Connector
• RS232 Connection: 4 Way Polarized Connector
• RS422/RS485 Connection: 6 Way Polarized Connector

Clocks

• Real Time Clock: DS1307 (Optional)
• Real Time Clock Crystal: 32.7kHz
• Battery Back-Up: Yes - 1.5V Watch Battery (Optional)

Communication

• USB Communication: Yes - 1 Channel
• RS232 Communication: Yes - 1 Channel
• RS422 Communication: Yes - (75176 Optional)
• RS485 Communication: Yes - (75176x2 Optional)

Ancillary Features

• In-Circuit Programming: Yes
• Power-On LED: Yes - Red
• USB Power LED: Yes - Green
• ALE LED: Yes - Yellow
• Reset Button: Yes
• PSEN Button: Yes
• Interrupt Button: Yes
• USB On/Off Switch: Yes

Power Supply

• Power-Supply: 9 - 12 Vdc

Dimensions

• LxWxH: 155mm x 90mm x 42mm

Parts Supplied

• Included Parts: USB Development Board, USB Connection Cable, Download Software, Manual on CD, Examples and Sample Code, Datasheets on CD.

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