Does the CH340E require an external crystal?

No, the CH340E features an integrated clock generator, eliminating the need for an external crystal and associated capacitors.

What supply voltages does the CH340E support?

It supports both 5V and 3.3V supply voltages, with specific configuration requirements for the V3 pin.

What are the key specifications of the CH340E?

It supports USB 2.0 full-speed, baud rates up to 2Mbps, and includes standard modem control signals in an MSOP-10 package.

What should sourcing teams check before buying CH340E?

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

What is the pinout of CH340E?

Use the CH340E datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about CH340E pinout to locate pins, power rails, and interface signals before layout.

CH340E Datasheet, Specs, Alternatives & ECAD | WCH

AI summary

The CH340E is a compact, cost-effective USB-to-UART bridge IC with an integrated clock, ideal for space-constrained serial communication designs.

Best for

USB-to-Serial adapters
Embedded system debugging
Industrial serial interfaces

Avoid if

Applications requiring high-speed USB 3.0 or non-standard serial protocols

Check before use

V3 pin connection based on supply voltage
Decoupling capacitor placement

Key specifications

Package: MSOP-10
Clock: Internal
Baud Rate: 50bps - 2Mbps
Supply Voltage: 3.3V / 5V

Compliance & Environment

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

Application

GeneralIndustrial

Datasheet

pIYBAF6etHyAKnKiAAKj3lnSSKU579.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for CH340E: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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PCB Footprint

Land pattern for PCB layout

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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 CH340E is a USB-to-serial UART bridge chip that allows computers to communicate with serial devices 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 CH340E?+×

Does the CH340E require an external crystal?+×

What supply voltages does the CH340E support?+×

What are the key specifications of the CH340E?+×

What should sourcing teams check before buying CH340E?+×

What is the pinout of CH340E?+×