---
name: chip-fetcher-site-st
description: >-
  How chip-fetcher pulls CAD from STMicroelectronics (st.com) — the CAD Resources
  tab on a product page, behind a free myST account for some downloads. Read
  before an ST-direct fetch. Trigger words: st, stm, stmicroelectronics, st.com,
  st cad, st step, stm32 cad, myst login, st blocked.
---
# Site: STMicroelectronics (st.com)
Authoritative manufacturer source for STM32 / ST analog & power parts.
## Reach
- `https://www.st.com/en/<family>/<MPN>.html` or `google.com/search?q=<MPN> st.com cad`.
## Gate
- A free **myST** account is required for some CAD/STEP downloads (a click-through login). Use the persistent profile; creds key `st`.
## Download flow
- Product page → **CAD Resources** tab → download the symbol/footprint and STEP. Some land as a `.zip`.
## Catch / When it breaks
- Normalize into `library/<MPN>/`. myST session expires → re-login once. ST gates exports by region/account; if a download 403s, confirm the myST session, then publish any new flow (`../../CONTRIBUTING.md`).