Silicon Labs CP2102 USB Serial Adapter Products

Created:  
Updated:   12May2024 03:34:02 UTC 2024-05-12T03:34:02Z

Description

The CP2102 ICIntegrated Circuit is a common USB Serial Adapter found in many devices that converts USB signals to 2-wire UARTUniversal Asynchronous Receiver-Transmitter (TXTransmit, RXReceive) for 3.3V systems (the CP2102 input is 5V tolerant). It operates at USB Full Speed and supports baud rates from 300bps to 1Mbps.

For Linux OS the drivers are typically already installed in the kernel, but for Windows and Mac OS, the driver needs to be downloaded from the SciLabs website and installed.

The CP2102 IC has power pins (VCC, GND), data pins (TX, RX), and control pins (RI, DTR, DSR, DCD, RTS, CTR), defined in the table below. However, some modules may not include some or all of the control pins.

CP2102 Pinout
Pin Description
VCC Power supply 3.3V
GND Common ground for power and logic.
TX UARTUniversal Asynchronous Receiver-Transmitter data transmit pin. This pin sends the serial output.
RX UARTUniversal Asynchronous Receiver-Transmitter data receive pin. This pin receives the serial input.
RI Ring Indicator Control Input. This pin is active low.
DTR Data Terminal Ready output. This pin is active low.
DSR Data Set Ready input. This pin is active low.
DCD Data Carrier Detect input that is usually present inside an RS-232 cable.
RTS Ready To Send control output. This pin is active low.
CTR Clear To Send control input. This pin is active low.

Specs

CP2102 Specs
Feature Description
Manufacturer Silicon Labs (SciLabs)
Product Page
Protocol Support UARTUniversal Asynchronous Receiver-Transmitter
I/O Voltage 3.3V (input 5V tolerant)
Max Baud Rate 1 Mbps
Datasheet CP2012 Datasheet (PDF)

Products


Adafruit 954 USB-to-TTL Serial Cable
Package includes:
  • 1x USB Serial Adapter
Price: $9.95(Updated 10Aug2024 09:04:472024-08-10T09:04:47Z UTC UTC)

Adafruit 954 USB-to-TTL Serial Cable
Package includes:
  • 1x USB Serial Adapter
Price: $16.13(Updated 07Aug2024 20:28:142024-08-07T20:28:14Z UTC UTC)

HiLetgo CP2102 USB 2.0 to TTL Module Serial Converter Adapter Module USB to TTL Downloader With Jumper Wires
Seller: HiLetgo
Package includes:
  • 1x USB Serial Adapter
  • 5x Female to Female Dupont Jumper Cables
Price: $7.39(Updated 07Aug2024 20:32:302024-08-07T20:32:30Z UTC UTC)

IZOKEE CP2102 Module USB to TTL 5PIN Serial Converter Adapter Module Downloader for UART STC 3.3V and 5V with Jumper Wires
Package includes:
  • 2x USB Serial Adapter
  • 8x Female to Female Dupont Jumper Capbles (20cm)
Price: $9.99(Updated 07Aug2024 20:32:552024-08-07T20:32:55Z UTC UTC)

HiLetgo CP2102 USB to TTL UART 232 485 Port 6 in 1 Multi-Functional USB Serial Adapter
Seller: HiLetgo
Package includes:
  • 1x USB Serial Adapter
  • 7x Female to Female Dupont Jumper Cables
Price: $7.49(Updated 07Aug2024 20:33:132024-08-07T20:33:13Z UTC UTC)

NEXTION CP2102 6 in 1 USB to TTL Serial Adapter Module
Package includes:
  • 1x USB Serial Adapter
  • 6x Female to Female Dupont Jumper Cables
Price: $9.95(Updated 07Aug2024 20:33:392024-08-07T20:33:39Z UTC UTC)

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