The CP2112 Debug Board USB to I2C Communication Module is a highly integrated USB-to-SMBus bridge controller designed by Silicon Labs. Featuring a full-speed USB 2.0 interface (12Mbps), this module enables easy communication between USB and I2C devices without requiring complex firmware or custom drivers, as it uses the standard USB HID device class natively supported by most operating systems. It includes an integrated 3.45V voltage regulator, power-on reset circuit, and a 194-byte one-time programmable ROM for storing user-defined information. The CP2112 offers a 512-byte SMBus buffer and configurable parameters such as clock speed, timeouts, and device addressing. Additionally, it provides eight configurable GPIO pins with alternate functions like clock output (48MHz–94kHz) and LED activity indicators for SMBus read/write operations. Compact and versatile, the CP2112 is widely used in portable controllers, USB dongles, data logging systems, and other embedded applications requiring robust USB-to-I2C communication. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
USB to I2C Bridge – Simplifies communication between USB hosts and I2C devices.
Driver-Free Operation – Standard HID device class works on Windows, Mac, and Linux.
Configurable SMBus – Adjustable clock speed, timeouts, and 7-bit addressing.
Eight GPIOs – Configurable as input/output, push-pull, or open-drain.
On-Chip Voltage Regulator – Provides 3.45V output with built-in reset circuitry.
ROM Storage – 194-byte OTP memory for customizable product data.
Compact Form Factor – Small 29.5mm × 21.3mm board with MicroUSB connector.
Cross-Platform Libraries – HID-to-SMBus libraries and API available for rapid development.
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Applications:
Portable Controllers – Compact design suitable for embedded control systems.
Data Logging – Collect and transfer I2C data over USB for analysis.
USB Dongles – Create plug-and-play USB devices with I2C capability.
Embedded Prototyping – Quickly test and integrate I2C devices with a PC.
Educational Projects – Teach USB-I2C interfacing and microcontroller communications.
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| General Specifications |
| Product Model | CP2112 Debug Board USB to I2C |
| USB Standard | USB 2.0 Full Speed (12Mbps) |
| Voltage Regulator Output | 3.45V |
| ROM Storage | 194-byte OTP ROM |
| SMBus Data Buffer | 512 bytes |
| I2C/SMBus Features | Configurable clock, timeouts, retry counter, slave address (7-bit) |
| GPIOs | 8 configurable (I/O, push-pull, open-drain) |
| Clock Output | 48MHz to 94kHz (configurable) |
| LED Indicators | TX/RX activity during SMBus read/write |
| Module Size | 29.5 × 21.3 mm with 2 × M3 mounting holes |
| USB Connector | MicroUSB (female) |
| Supported OS | Windows, Mac, Linux (HID libraries provided) |
| Application Areas | Portable controllers, USB dongles, data logging |
| Shipment Weight | 0.0015 kg |
| Shipment Dimensions | 15 × 13 × 5 cm |
Please allow 5% measuring deviation due to manual measurement.
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Package Includes:
1 x CP2112 Debug Board USB to I2C Communication Module
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