CP2108-B02-GM

Controllers Overview

The CP2108-B02-GM is a highly integrated USB to Quad UART Bridge Controller from Silicon Labs, housed in a compact 9 mm x 9 mm 64-pin QFN package. It features a USB 2.0 full-speed function controller, an integrated oscillator, and four asynchronous serial data buses with full modem control signals. The device operates within a supply voltage range of 3.0 V to 3.6 V for self-powered applications or 4.0 V to 5.5 V when bus-powered via the internal regulator. Normal supply current is typically 56 mA, while suspended current ranges from 330 µA to 460 µA depending on power mode. It supports an operating ambient temperature range of -40 °C to +85 °C.

Controllers Feature Summary

• Integrates four independent UART interfaces with full modem control signals and hardware flow support
• Includes 16 configurable GPIO pins capable of serving as clock outputs or RS-485 transceiver controls
• Features an on-chip EEPROM for customizable product information and configuration without firmware development
• Provides royalty-free Virtual COM Port drivers compatible with Windows, Mac, and Linux systems

Controllers Applications

• Instrumentation systems requiring multiple serial connections
• Industrial control equipment upgrading from RS-232/RS-485 to USB
• Server infrastructure management interfaces
• Point-of-sale (POS) terminals

Controllers Procurement Notes

Verify the specific B02 hardware revision against project requirements, as datasheet ordering examples reference B03. Confirm that the standard tray packaging aligns with assembly line capabilities, noting that tape-and-reel variants exist under different suffixes. Ensure compliance with RoHS standards and check moisture sensitivity levels prior to soldering.

Controllers Selection Notes

Select this component when four distinct UART channels are necessary within a single USB interface. Evaluate the need for high-drive UART 3 pins if interfacing with 6 V logic devices. Consider the 64-pin QFN footprint constraints during PCB layout and ensure adequate thermal dissipation for the exposed pad.

Controllers Part Context

This part belongs to the CP2108 family of USB-to-UART bridge controllers. It shares architectural similarities with other Silicon Labs USB bridge devices but is distinguished by its quad UART capability and 16 GPIO lines. The B02 suffix indicates a specific hardware revision within the GMR/GM package lineup.

Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing firmware and driver stacks before considering alternative bridge controllers.