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Add STM32F103 datasheet for the pin-number overlay

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st.com blocks scripted download and its CSP blocks a browser-side fetch from
leaving the page, so this came from a mirror and is Rev 1 (preliminary, 65pp).
Verified it is the right document and that the LQFP48 pinout and every pin the
swap depends on are present. Flagged in the README as unsuitable for electrical
figures - pull the current Rev 20 by hand for those.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
William Rickert
2026-08-27 14:26:26 -05:00
co-authored by Claude Opus 5
parent 2a6dc40f2e
commit a9e550e065
2 changed files with 16 additions and 4 deletions
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Documents/README.md
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@@ -9,9 +9,21 @@ lives in `~/Documents/Projects/WCH CH ICs/`.
| `CH32L103DS0.PDF` | CH32L103C8T6 | The MCU. Pinout, 64 K flash / 20 K SRAM, HSI accuracy table (§3.3.6), USBFS with 8 device endpoints (§1.4.20). |
| `CH32L103RM.PDF` | CH32L103C8T6 | Reference manual. USB clock path (§3.3.5.6), `RB_UC_DEV_PU_EN` internal 1.5 kΩ D+ pull-up, HSICAL/HSITRIM. |
| `CH334DS1.PDF` | CH334R | The hub. Variant feature table (which packages expose `PSELF` and port power switching), crystal-free caveats (§6.2), and the CH213 reference design for VBUS protection. |
| `STM32F103x8xB_datasheet_rev1.PDF` | STM32F103C8T6 | The pin-compatible escape-hatch MCU. Needed for the LQFP48 pin-number overlay against the CH32L103. |
## Missing
## ⚠️ The STM32F103 copy is Rev 1 (preliminary)
- **STM32F103C8T6 datasheet** — the pin-compatible escape-hatch MCU. ST's site
refused automated download; grab it from st.com or the LCSC CDN and drop it
here. Needed to do the pin-number overlay flagged in the top-level README.
st.com refuses scripted download (HTTP/2 reset on curl; its CSP also blocks
exfiltrating a browser-side fetch). This copy came from a third-party mirror and
is the **early preliminary revision, 65 pages** — the current one is Rev 20 at
~117 pages.
For the LQFP48 pin numbering it is fine: that table has not changed since 2007,
and PC13/PC14/PC15, OSC_IN/OSC_OUT, NRST, PA11/PA12, PA13/PA14 and BOOT0 are all
present and verified in this copy.
**Do not trust it for anything electrical** — absolute maximums, timings, current
consumption and errata have all moved since Rev 1. For those, pull the current
datasheet by hand from
<https://www.st.com/resource/en/datasheet/stm32f103c8.pdf> in a browser and
replace this file.
Documents/STM32F103x8xB_datasheet_rev1.PDF
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