CP2108-B01-GMR

Controllers Overview

The CP2108-B01-GMR is a highly integrated USB to Quad UART Bridge Controller from Silicon Labs, designed to simplify the transition from RS-232/RS-485 designs to USB. It integrates a USB 2.0 full-speed function controller, transceiver, oscillator, EEPROM, and four asynchronous serial data buses with full modem control signals within a compact 9 mm x 9 mm 64-pin QFN package. The device supports self-powered operation at 3.0 V to 3.6 V or bus-powered operation at 4.0 V to 5.5 V, with an operating temperature range of -40 °C to +85 °C.

Controllers Feature Summary

• Integrates four independent UART interfaces supporting hardware flow control and all standard modem signals.
• Includes on-chip programmable EEPROM for customizing VID, PID, and GPIO configurations via a GUI-based configurator.
• Features an integrated clock and USB transceiver, eliminating the need for external crystals or resistors.
• Provides royalty-free Virtual COM Port drivers compatible with Windows, Mac, and Linux systems.

Controllers Applications

• Instrumentation
• Industrial control
• Servers
• Point-of-Sale products

Controllers Procurement Notes

Verify the specific firmware revision associated with the B01 suffix against current official documentation, as revisions may change over time. Confirm that the GMR tape and reel packaging meets your assembly requirements. Check for any Product Change Notifications (PCNs) regarding marking or material updates before finalizing procurement plans.

Controllers Selection Notes

Select this component when multiple isolated serial connections are required from a single USB host port. Ensure the design accommodates the 64-pin QFN footprint and thermal dissipation needs. Verify that the target application does not require baud rates exceeding 2 Mbps or more than four simultaneous UART channels.

Controllers Part Context

This part belongs to the CP2108 family of USB-to-UART bridge controllers. It shares the same core architecture and pinout with other variants like the CP2108-B02-GMR and CP2108-B03-GMR, differing primarily in firmware revision levels. The B01 designation indicates a specific internal software version used for product customization and compatibility.

Controllers Replacement Considerations

Direct replacements include CP2108-B02-GMR and CP2108-B03-GMR, which share identical electrical characteristics and pinouts. Verify firmware compatibility if using existing EEPROM configurations. No functional changes are implied by ordering suffix variations unless explicitly stated in manufacturer PCNs.