LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
SILICON LABS CP2102N-A02-GQFN28R product image
  • CP2102N-A02-GQFN28R thumbnail 1
  • CP2102N-A02-GQFN28R thumbnail 2
  • CP2102N-A02-GQFN28R thumbnail 3
  • Pinout
  • Footprint
Images for reference only

SILICON LABS CP2102N-A02-GQFN28RRoHS

Manufacturer
SILICON LABS
MPN
CP2102N-A02-GQFN28R
LCSC Part #
C964632
Packaging
QFN-28-EP(5x5)
Customer #
Key Attributes
USB-to-UART Bridge
Datasheetpdf iconSILICON LABS CP2102N-A02-GQFN28R
In-Stock: 56
56 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 1.8967$ 1.90
10+$ 1.6673$ 16.67
30+$ 1.5063$ 45.19
100+$ 1.3583$ 135.83
500+$ 1.29$ 645.00
1,500+$ 1.2623$ 1893.45
Standard Packaging1500/Full Reel
Better price for more quantity?
$

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Interface/Controllers
ManufacturerSILICON LABS
PackagingQFN-28-EP(5x5)
Voltage - Supply3V~3.6V
FeaturesHardware flow control support;Programmable baud rate;Power-on reset;Wake-up function;FIFO buffer;Built-in clock generator
Operating Temperature-40℃~+85℃@(Ta)
Applications FunctionUSB to UART
Quiescent Supply Current1.3uA
USB ProtocolUSB 2.0
Current - Supply9.5mA
Number of Channels-
Data Rate-
Report an ErrorShow similar products (0) >

Introduction

AI Translation

The CP2102N devices, part of the USBXpress family, are designed to quickly add USB to your applications by eliminating firmware complexity and reducing development time. These highly-integrated USB-to-UART bridge controllers provide a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space. CP2102N includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, and Universal Asynchronous Receiver/Transmitter (UART) in packages as small as 3 mm×3 mm. No other external USB components are required for development. All customization and configuration options can be selected using a simple GUI-based configurator. By eliminating the need for complex firmware and driver development, the CP2102N devices enable quick USB connectivity with minimal development effort.

Features

AI Translation
  • No firmware development required
  • Simple GUI-based configurator
  • Integrated USB transceiver; no external resistors required
  • Integrated clock; no external crystal required
  • USB 2.0 full-speed compatible
  • Data transfer rates up to 3 Mbaud
  • USB Battery Charger Detection (USB BCS 1.2 Specification)
  • Remote wakeup for waking a suspended host
  • Low operating current: 9.5 mA
  • Royalty-free Virtual COM port drivers
  • Internal 960-byte programmable ROM for vendor ID, product ID, serial number, power descriptor, release number, and product description strings
  • On-chip power-on reset circuit
  • On-chip voltage regulator — 3.3 V output
  • Pin compatible with CP2101/2/9 (QFN28 package)
  • Pin compatible with CP2104 (QFN24 package)
  • USB Specification 2.0 compliant; full-speed (12 Mbps)
  • USB suspend states supported via SUSPEND pins
  • Single power supply of 3.0 to 3.6 V or 3.0 to 5.25 V
  • Works with existing COM port Applications
  • Supported on Windows, Mac, and Linux
  • Royalty-free distribution license

Applications

AI Translation
  • POS terminals
  • USB dongles
  • Gaming controllers
  • Medical equipment
  • Data loggers

Product FAQ

  • 1. What are the primary electrical specifications and integrated features of the Silicon Labs CP2102N-A02-GQFN28R USB-to-UART bridge?
    The Silicon Labs CP2102N-A02-GQFN28R is a highly integrated USB-to-UART bridge IC that converts USB 2.0 Full-Speed (12Mbps) communication into a standard asynchronous serial interface. It supports configurable UART data rates from 300 baud up to 3Mbps and operates from a supply voltage range of 3.0V to 3.6V. The device integrates a USB transceiver, internal oscillator, voltage regulator, and a 960-byte programmable configuration ROM within a compact 28-pin QFN package measuring 5.0mm × 5.0mm. The QFN28 variant also provides up to seven configurable GPIOs, hardware flow-control signals, and programmable USB configuration data, reducing external component requirements in embedded designs.
  • 2. Which operating systems are supported by the CP2102N-A02-GQFN28R?
    The CP2102N-A02-GQFN28R supports Silicon Labs Virtual COM Port (VCP) drivers for Windows, macOS, and Linux, allowing the device to appear as a standard COM port to existing serial applications. It also supports USBXpress direct-access drivers for applications using the Silicon Labs USBXpress API. The UART interface provides TXD, RXD, RTS, CTS, DTR, DSR, DCD, and RI signals, supporting standard serial communication and hardware flow control.
  • 3. How does the CP2102N-A02-GQFN28R support reliable operation in embedded and industrial applications?
    The CP2102N-A02-GQFN28R is specified for operation across an industrial temperature range of -40°C to +85°C and typically consumes approximately 9.5mA during normal operation. The device integrates an internal oscillator, voltage regulator, and USB transceiver to reduce external component count and simplify system design. It also supports USB suspend and remote wakeup functions for power management. Following the recommended power-supply connections, bypass capacitor placement, and USB interface reference circuits helps ensure reliable operation.
  • 4. Which PCB layout practices help ensure stable USB and UART communication with the CP2102N-A02-GQFN28R?
    The CP2102N-A02-GQFN28R is supplied in a 28-pin QFN package with an exposed center pad that should be soldered to the PCB ground. The recommended connection diagrams specify placing 4.7µF and 0.1µF bypass capacitors as close as possible to each power pin and following the reference circuits for the selected bus-powered or self-powered configuration. The VBUS connection should also follow the recommended reference design to ensure proper device operation.
  • 5. Why is the CP2102N-A02-GQFN28R a suitable choice for USB-to-UART applications?
    The CP2102N-A02-GQFN28R integrates USB-to-UART conversion, a USB transceiver, an internal oscillator, a voltage regulator, and programmable USB configuration memory within a compact 5.0mm × 5.0mm package. It supports UART communication speeds up to 3Mbps and provides configurable GPIOs, hardware flow control, USB suspend support, remote wakeup, and programmable USB descriptors. The "R" suffix identifies the tape-and-reel packaging option intended for automated SMT assembly.