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433-mcp402xev
433-mcp402xev

Part Number: MCP402XEV

MCP402X NON-VOLATILE DIGITAL POTENTIOMETER EVALUATION BOARD

  • MCP4021/4022/4023/4024 support
  • Small PCB (1.5”x1.5”)
  • One populated PCB:

  • MCP4021-103E/SN configured as a “windowed” potentiometer
  • PIC10F206-I/OT with firmware

    • Sample firmware to interface the PIC10F206 with push buttons & the MCP402X:

  • Interprets momentary switch inputs to determine what serial command to execute
  • Uses a high-speed oscillator output to create a low-cost charge pump for HV commands
  • PCB supports In-Circuit Serial Programming using the BFMP programming header

    • One un-populated PCB for rapid prototyping of an MCP402X application
    • Sample kit with 1 PIC10F206-I/OT and 2ea of theMCP4021-I/SN (2.1kΩ, 5kΩ,10kΩ & 50kΩ)
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    Overview

    The MCP402xEV is a low cost evaluation board that quickly enables the user to exercise all of the features of the MCP402X Non-Volatile Digital Potentiometer. This kit includes 2 PCBs, one populated & one unpopulated. The populated PCB has an MCP4021-103E/SN digital pot configured as a “windowed” potentiometer using a 2.5kΩ pull-up and a 2.5kΩ pull-down resistor. The PCB supports the 8 pin SOIC, SOT-23-6 and SOT-23-5 MCP402X package variations. A 6 pin PIC10F206-I/OT with FLASH memory is utilized to generate all of the Low-Voltage (LV) and High-Voltage (HV) MCP402X serial commands when the 2 momentary switches are depressed in various sequences. This enables the user to Increment and Decrement the wiper, save the setting to EEPROM & exercise the WiperLocktm feature. The PCB also supports the standard ICSP programming header used by the Microchip BFMP low cost programming tool. The second PCB included in the kit is unpopulated to allow the user to build up the exact combination of components that their application would require.

    Package Contents
    The MCP402xEV is a low cost evaluation board that quickly enables the user to exercise all of the features of the MCP402X Non-Volatile Digital Potentiometer. This kit includes 2 PCBs, one populated & one unpopulated. The populated PCB has an MCP4021-103E/SN digital pot configured as a “windowed” potentiometer using a 2.5kΩ pull-up and a 2.5kΩ pull-down resistor. The PCB supports the 8 pin SOIC, SOT-23-6 and SOT-23-5 MCP402X package variations. A 6 pin PIC10F206-I/OT with FLASH memory is utilized to generate all of the Low-Voltage (LV) and High-Voltage (HV) MCP402X serial commands when the 2 momentary switches are depressed in various sequences. This enables the user to Increment and Decrement the wiper, save the setting to EEPROM & exercise the WiperLocktm feature. The PCB also supports the standard ICSP programming header used by the Microchip BFMP low cost programming tool. The second PCB included in the kit is unpopulated to allow the user to build up the exact combination of components that their application would require.

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    All Application Notes

    Documentation

    Title
    Document Id
    Low-Cost 64-Step Volatile Digital POT Download 2a615ff5-4d9d-486a-a8c3-32de7270d2d1
    MCP4021/2/3/4 Data Sheet Download b7bd0ba2-f5cd-4d32-8a79-4596661d0eb5
    Digital Potentiometer Design Guide Download 3db1c3ba-f92c-418a-9b0e-ea538fd83049
    MCP402X Non-Volatile Digital Potentiometer Evaluation Board Gerbers Download ec4a3de0-570c-422e-bb7f-7d49c7a38754
    MCP401x/2x Digital Potentiometer Evaluation Board User's Guide Download 10e129b9-67d0-4111-b10e-2c6d7f2aaf61

    Application Notes

    Title
    Date
    Document Category
    Understanding Digital Potentiometers Resistor Variations 27 Jul 2009 Link Application Notes

    Software

    Title
    Date
    MCP402X Non-Volatile Digital Potentiometer Evaluation Board Firmware Download 13 Jan 2006