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Silicon Labs CP2102N USB Serial Adapter Products

Created:  
Updated:   12May2024 04:38:15 UTC 2024-05-12T04:38:15Z

Description

The CP2102N ICIntegrated Circuit is a USB Serial Adapter that converts USB signals to 2-wire UARTUniversal Asynchronous Receiver-Transmitter (TXTransmit, RXReceive) for 3.3V systems (the CP2102N input is 5V tolerant). It operates at USB Full Speed and supports baud rates from 300bps to 3Mbps.

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

The CP2102N IC has power pins (VCC, GND), data pins (TX, RX), control pins (RI, DTR, DSR, DCD, RTS, CTR), and GPIO pins (GPIO0-GPIO6), defined in the table below. However, some modules may not include some or all of the control pins or GPIO pins.

CP2102N 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.
GPIO0-
GPIO6		 7 General Purpose Input/Output pins that can be controlled from the host

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 3 Mbps
Datasheet CP2102N Datasheet (PDF)

Products

Adafruit 5335 CP2102N Friend - USB to Serial Converter
Package includes:
  • 1x USB Serial Adapter
  • 1x 16-Pin Straight Male Header (0.1" pin spacing)
  • 1x 6-Pin Right Angle Female Header (0.1" pin spacing)
Price: $5.95(Updated 09Oct2024 08:22:502024-10-09T08:22:50Z UTC UTC)
Adafruit.com
Adafruit 5335 CP2102N Friend - USB to Serial Converter
Package includes:
  • 1x USB Serial Adapter
  • 1x 16-Pin Straight Male Header (0.1in pin spacing)
  • 1x 6-Pin Right Angle Female Header (0.1in pin spacing)
Price: Unavailable (Updated 09Oct2024 08:23:002024-10-09T08:23:00Z UTC UTC)
Amazon.com (Affiliate Link ⓘAs an Amazon associate I earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)
DSD TECH SH-U09BL USB to TTL Serial Cable (1.2m/4ft) with CP2102N Chip
Seller: DSD TECH Direct
Package includes:
  • 1x USB Serial Adapter
  • 1x User Manual
Price: $12.99(Updated 09Oct2024 08:23:082024-10-09T08:23:08Z UTC UTC)
Amazon.com (Affiliate Link ⓘAs an Amazon associate I earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)
DSD TECH SH-U09B3 USB Type-C to TTL Serial Adapter with CP2102N Chip
Seller: DSD TECH Direct
Package includes:
  • 1x USB Serial Adapter
  • 1x User Manual
Price: $9.99(Updated 09Oct2024 08:23:142024-10-09T08:23:14Z UTC UTC)
Amazon.com (Affiliate Link ⓘAs an Amazon associate I earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

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