Does the CH343P require an external crystal?

No, the CH343P features an internal clock generator, eliminating the need for an external crystal or oscillator.

What baud rates are supported?

It supports a wide range of communication baud rates from 50bps up to 6Mbps.

Can the CH343P be customized?

Yes, the CH343P includes an internal EEPROM that allows for the customization of VID, PID, and product information strings.

What should sourcing teams check before buying CH343P?

Check lifecycle (Active), compliance data, distributor availability, and approved-source coverage. Current sourcing signal: Low; readiness: easy.

What is the pinout of CH343P?

Use the CH343P datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about CH343P pinout to locate pins, power rails, and interface signals before layout.

CH343P Datasheet, Specs, Alternatives & ECAD | WCH

AI summary

The CH343P is a high-performance USB-to-UART bridge chip with an integrated oscillator and EEPROM, supporting baud rates up to 6Mbps.

Best for

USB-to-Serial conversion
MCU firmware updates
Industrial serial communication

Avoid if

Applications requiring non-standard USB protocols

Check before use

I/O voltage compatibility with target MCU

Key specifications

Max Baud Rate: 6Mbps
I/O Voltage Range: 1.8V - 5V
Package: QFN16 (3x3mm)
USB Compatibility: USB 2.0 Full-Speed

Compliance & Environment

RoHS: Compliant
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

Industrial AutomationConsumer ElectronicsConnectivity

Datasheet

759955a4cd29247430dcd505e4635594.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for CH343P: 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

Alternative components

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

Design and risk insights

Questions & answers

The CH343P is a high-speed USB-to-UART bridge IC that allows computers to communicate with serial devices or MCUs via USB.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the CH343P?+×

Does the CH343P require an external crystal?+×

What baud rates are supported?+×

Can the CH343P be customized?+×

What should sourcing teams check before buying CH343P?+×

What is the pinout of CH343P?+×