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CH9101R AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

CH9101R product

CH9101R

USB Controllers

USB BridgeUARTInterface IC

The CH9101R is a versatile USB-to-UART bridge chip designed for seamless serial communication over USB, featuring wide I/O voltage support and hardware flow control.

Best for

  • USB-to-Serial conversion
  • Upgrading legacy serial devices to USB

Avoid if

  • High-speed data requirements exceeding 3Mbps

Check before use

  • I/O voltage compatibility with the target MCU

Key specifications

Baud Rate
50bps - 3Mbps
I/O Voltage
1.8V - 5V
Package
QSOP16

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Industrial CommunicationConsumer Electronics

Datasheet

bbaf66eb1f3888700ec31ca3c5018980_2403131113_WCH-Jiangsu-Qin-Heng-CH9101R_C5187520.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for CH9101R: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The CH9101R is a USB-to-asynchronous serial port (UART) bridge chip from WCH, designed to allow computers or MCUs to communicate via USB.