Design Specification:
   
 

Performance

    Purpose
   
  • Detect and decode data on an I2C bus.
  • Display bus data on LCD screen.
  • Makes I2C bus data readable for debugging designs.
     
    Modes
   
  • Display Read or Write Mode.
  • Display only certain slave data.
  • Display all data.
  • Start sampling at certain byte.
  • Support both Standard mode and Fast mode bus speeds.
  • Sampling data bus at 450KHz.
     
    Internal Processor
   
  • Running at 50MHz.
     
    LCD Module
   
  • Display data in hexadecimal form.
  • waveform separated by slave address and master.
     
 

Physical Appearance

   
LCD Screen

Specification (W x H x D)

Units
Module size 147.0 X 166.0 X 12.0 mm
Viewing Area 127.0 X 70.0 mm
Dot size 0.43 x 0.43 mm
Dot Pitch 0.47 x 0.47 mm
     
   
Buttons/Encoder Specification (W x H x D) Units
Button 18 x 18 x 10 mm
Rotary Encoder 0.9 x 0.5 x 0.9 Inches
     
   
Finish Package Specification (W x H x D) Units Weigh
Finished Module 6 x 6 x 2 Inches 3
Sense Leads 18 Inches  
     
 

Power

    Batteries
   
  • Unit needs three 9-volt batteries to operate
    • 5- volt control logic
    • 15-volt LCD drive voltage
    Power Consumption
   
  • SX52 processor at 50MHz
    • Logic current 80mA
    • Max logic current 110mA
    • 3.0 voltage minimum
    • 5.5 voltage maximum
  • LCD screen
    • Logic levels 4.5 volts to 5.5 volts
    • LCD drive 13.8 volts to 15.9 volts
    • Logic current 10mA to 15mA
    • LCD drive 5mA to 7.5mA
  • Total consumption
    • Minimum current draw 95mA
    • Maximum current draw 133mA
    Battery Life Expectancy
   
  • Maximum processor current draw of 110mA from one 9-volt battery.
  • Maximum LCD current draw of 23mA from two 9-volt batteries.
  • Expected to operate 4 continuous hours.