CTU Adapter

For demonstration, test and development purposes, it is convenient to communicate with CTU chips using a PC.  The CTU Adapter converts between the SPI interface of CTU chips and the USB interface of a PC.  The Adapter is an SPI master and the CTU is an SPI slave.

CTU Adapter for SPI to USB conversion

  • USB powered
  • Selectable CTU power supply: 2.7V, 3.3V or 3.6V
  • Adapter firmware can be updated in the field
  • Full speed USB operation
  • Interface DLL available for software developers
  • Compact, rugged, metal housing
  • Supplied with USB and SPI cables


  • 100 SPI write/reads per second (typical PC)
  • 1Mbit/s SPI clock rate
  • SPI timings compatible with CTU chips
  • 100mA max power supply output current


  • Connecting CTU chips to a PC for demos and test
  • Developing CTU chip applications
  • PC based measurement systems

The CTU Adapter is compatible with all CambridgeIC Development Boards.


By registering with CambridgeIC you will have access to development software.

Buy Tools & Accessories

CAM312 Development Board
(part number 013-5034)
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Type 6 CAM204 Rotary Dev Kit
(part number 013-7004)
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CTU Development Kit
(part number 013-7002)
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Type 1 CAM204 Dev Board
(part number 013-5006)
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Type 3&4 CAM204 Dev Board
(part number 013-5029)
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Type 2 CAM204 Dev Board
(part number 013-5029)
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Type 6 CAM204 Dev Board
(part number 013-5030)
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CAM502 Dev Board
(part number 013-5032)
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CTU Adapter
(part number 013-7001)
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Connecting cables
Buy now