Single-Chip HID USB to SMBus Master Bridge CP2112 Data Sheet The CP2112 devices are designed to quickly add USB to your KEY FEATURES applications by eliminating firmware complexity and reducing de- velopment time. No firmware development required Simple GUI-based configurator These highly-integrated USB-to-SMBus bridge controllers provide a simple solution for Integrated USB transceiver no external adding USB using a minimum of components and PCB space. The CP2112 includes a resistors required USB 2.0 full-speed function controller, USB transceiver, oscillator, and a total of 8 GPIOs in a compact 4 x 4 mm QFN-24 package. All customization and configuration Integrated clock no external crystal required options can be selected using a simple GUI-based configurator. By eliminating the need for complex firmware and driver development, the CP2112 devices enable quick USB 2.0 full-speed compatible USB connectivity with minimal development effort. Standard HID class device no custom driver needed CP2112 is ideal for a wide range of applications, including the following: 8 GPIOs with configurable options Point-of-Sale products USB dongles Data loggers Medical meters Handheld controllers CP2112 Connect to REGIN VBUS or Voltage 48 MHz To SDA External Supply VDD Regulator Oscillator SMBus SMBus SCL Slave Controller Devices GND USB Interface USB Connector GPIO.0 TXT VBUS VBUS GPIO.1 RXT Full-Speed Peripheral D+ D+ 12 Mbps Function GPIO.2 D- Transceiver Controller D- GPIO.3 GPIO GND GPIO.4 Signals GPIO and GPIO.5 Suspend GPIO.6 /RST 194 Byte PROM Controller GPIO.7 CLK VPP (Product Customization) I/O Power and Logic Levels /SUSPEND Suspend Logic Level VIO SUSPEND Signals Supply I/O Power and Logic Levels (1.8V to VDD) silabs.com Smart. Connected. Energy-friendly. Rev. 1.3CP2112Data Sheet Feature List and Ordering Information 1. Feature List and Ordering Information CP 2112 F 03 G M R Tape and Reel (Optional) Package Type QFN24 Temperature Grade 40 to +85 C (G) Firmware Revision Hardware Revision Interface Family, HID USB-to-SMBus Bridge Silicon Labs Xpress Product Line Figure 1.1. CP2112 Part Numbering The CP2112 devices have the following features: Single-Chip HID USB to SMBus Master Bridge SMBus Configuration Options Integrated USB transceiver no external resistors or crystal Configurable Clock Speed required Device Address: 7-bit value that is the slave address of the SMBus master device CP2112. The device will only ACK this address, but will not GPIO can be configured as Input/Output and Open-Drain/ respond to any read/write requests Push-Pull Read/Write Timeouts 512 Byte SMBus data buffer SCL Low Timeout Integrated 194 Byte One-Time Programmable ROM for Retry Counter Timeout storing customizable product information GPIO Interface Features On-chip power-on reset circuit 8 GPIO pins with configurable options On-chip voltage regulator: 3.45 V output Usable as inputs, open-drain or push-pull outputs USB Peripheral Function Controller Configurable clock output for external devices USB Specification 2.0 compliant full-speed (12 Mbps) 48 MHz to 94 kHz USB Suspend states supported via SUSPEND Toggle LED during SMBus reads and /SUSPEND pins Toggle LED during SMBus writes HID Interface Supply Voltage Standard USB class device requires no custom driver Self-powered: 3.0 to 3.6 V Supported on Windows, Mac, and Linux USB bus powered: 4.0 to 5.25 V Open access to interface specification I/O voltage: 1.8 V to V DD Windows, Mac, and Linux HID-to-SMBus Libraries Ordering Part Number APIs for quick application development CP2112-F03-GM Package RoHS-compliant 24-pin QFN (4 x 4 mm) Temperature Range: 40 to +85 C silabs.com Smart. Connected. Energy-friendly. Rev. 1.3 1