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MANUFACTURER / PRODUCT & DEVELOPMENT GUIDE

WCH / 沁恒微电子

WCH develops microcontrollers, USB and communication interface ICs, and wireless connectivity products.

Explore the portfolio ↓Discuss a requirement ↗
MicrocontrollersInterface, logic & timingRF & wireless
Product & resource entries
9
Portfolio groups
1
Reviewed FPGA MPNs
0
Source review

2 device refs · 4 ordering codes Counts cover published site records, including subcategories. They do not describe stock or the manufacturer’s complete catalogue.

PRODUCT ARCHITECTURE

Product families & categories

Source-reviewed category map
Portfolio scope & source review

The linked official product page supports these family or functional branches. This is not a complete part-number census; verify specific device documentation and lifecycle separately.

Chips & IPProduct lines3 main entries · 2 device refs · 4 ordering codes
Clear filters

3 matching product lines · browse subseries within each family

Product lines

interface ICs

interface ICs is a product-line reference within WCH / 沁恒微电子. Use the manufacturer source to confirm the exact device or deliverable and its current support status.

1 device refs · 0 ordering codesExplore interface ICs →

DEVELOPMENT ECOSYSTEM

Development resources

Use the manufacturer’s current device-support list and release documentation to confirm compatibility.

FROM SELECTION TO PRODUCTION

Turn a product choice into a board requirement.

Confirm the exact device, then connect sourcing, board preparation and assembly review in one project.

Request sourcing review ↗Plan a PCBA project →

Engineering checkpoints

  • Check the core, flash/RAM, peripherals, pin multiplexing and safety/security requirements together.
  • Confirm debugger, IDE/compiler version, bootloader and in-circuit programming access for production.
  • Confirm the protocol revision, data rate, logic level, channel count and termination requirements.
  • Review signal integrity, isolation where applicable, clocking and package pinout before substitution.
  • Match frequency band, modulation/protocol, RF performance, antenna interface and regional certification needs.
Use our engineering worksheets →

TRACEABLE INFORMATION

Sources & identity

The linked official product page supports these family or functional branches. This is not a complete part-number census; verify specific device documentation and lifecycle separately.

Checked 2026-09-28. Manufacturer names and images belong to their owners. Listing does not imply stock or an authorized distribution relationship.

Also searchable as: 沁恒 · WCH · CH32 · CH340

Official and identified references

Each product page links its own portfolio evidence. Exact device specifications and lifecycle notices take precedence over family-level summaries.

Suggest a missing product line or correction →

ENGINEERING RESOURCES

Move from a part to a design review.

Prepare the exact-device evidence, I/O assumptions and manufacturing scope before committing to a board.

Read an exact ordering code →Download the I/O & power worksheet →Prepare an engineering question →