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Small green circuit board with MicroUSB port and pin headers

Vszerda

Vszerda CP2112 USB to SMBus I2C Data Converter MicroUSB 2.0

SKU CH-QZ32-9W121

Converts USB 2.0 to SMBus and I2C with eight configurable GPIO pins and a 512-byte data buffer

  • USB 2.0 full-speed at 12 Mbps for fast connectivity
  • No custom firmware needed with standard HID class support
  • Wide 1.8 V to 5.25 V supply range fits many designs
  • Eight configurable GPIO pins add flexible I/O control
  • Industrial temperature rating from -40 °C to 85 °C ensures reliability

Target Application

The Vszerda CP2112 is a USB 2.0 full-speed bridge that converts USB traffic to SMBus or I2C for sensor evaluation and prototype development. It draws power from the USB bus at 4.0 to 5.25 V or can be self-powered at 3.0 to 3.6 V. Eight GPIO pins are configurable as input, output, open-drain or push-pull, and a 194-byte OTP ROM stores custom product data.

Who Should Consider Elsewhere

Engineers who need high-speed USB throughput beyond 12 Mbps will find the full-speed link insufficient. Projects that require a UART, SPI or CAN interface instead of SMBus/I2C cannot use this module. Designs that must operate outside the -40 °C to 85 °C range or at I/O voltages below 1.8 V are not supported.

Deciding Specification

The bridge complies with the USB 2.0 full-speed standard at 12 Mbps and provides a 512-byte SMBus data buffer with a configurable 7-bit slave address. This throughput and buffer depth determine whether the module can sustain the sensor polling rate your application demands.

Highlights

  • USB 2.0 full-speed at 12 Mbps for fast connectivity
  • No custom firmware needed with standard HID class support
  • Wide 1.8 V to 5.25 V supply range fits many designs
  • Eight configurable GPIO pins add flexible I/O control
  • Industrial temperature rating from -40 °C to 85 °C ensures reliability

Specifications

No published specifications for this item yet.

Questions about this item

What does the 12 Mbps USB 2.0 full-speed rating mean when the CP2112 is connected to a host?

The link runs at USB 2.0 full speed, so the practical throughput is limited to 12 Mbps regardless of the host port version.

Which USB standard does the MicroUSB 2.0 interface follow and what speed does it cap at?

The board uses a MicroUSB 2.0 connector compliant with the USB 2.0 specification, capping the connection at full-speed 12 Mbps.

What voltage range must the target I²C bus stay within for the CP2112 to operate correctly?

The I/O voltage can be set from 1.8 V up to the VDD supply level, so the bus must remain inside that window.

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