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STM32G0B1CCU7

Public Made by Adom

by adom

STMicroelectronics Arm Cortex-M0+ MCU, USB, 256 KB flash, UFQFPN-48 (7 x 7 mm, 0.5 mm pitch). Datasheet-cited specs, KiCad, Fusion and Altium libraries and a 3D model.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
altium stm32g0b1ccu7: QFN model underside black again (the logo clean-up had coloured it like the pads) · noah 1d ago
docs stm32g0b1ccu7: library, CAD, datasheets and docs (2/4) · noah 1d ago
viewers stm32g0b1ccu7: review fixes: one ground pin per stacked pair ([2,4] style), lens-only LED glow, white SMA dielectric, SMA model turned to match the footprint · noah 1d ago
LICENSE stm32g0b1ccu7: library, CAD, datasheets and docs (4/4) · noah 1d ago
package.json stm32g0b1ccu7: QFN model underside black again (the logo clean-up had coloured it like the pads) · noah 1d ago
page.json stm32g0b1ccu7: page.json after publish 0.1.2 · noah 1d ago
README.md stm32g0b1ccu7: QFN model underside black again (the logo clean-up had coloured it like the pads) · noah 1d ago
stm32g0b1ccu7-etched.glb stm32g0b1ccu7: QFN model underside black again (the logo clean-up had coloured it like the pads) · noah 1d ago
stm32g0b1ccu7-etched.step stm32g0b1ccu7: QFN model underside black again (the logo clean-up had coloured it like the pads) · noah 1d ago
stm32g0b1ccu7-hero.glb Publish 0.1.2 · noah 1d ago
stm32g0b1ccu7-hero.overlay.json Publish 0.1.2 · noah 1d ago
stm32g0b1ccu7.glb stm32g0b1ccu7: QFN model underside black again (the logo clean-up had coloured it like the pads) · noah 1d ago
stm32g0b1ccu7.kicad_mod stm32g0b1ccu7: library, CAD, datasheets and docs (3/4) · noah 1d ago
stm32g0b1ccu7.kicad_sym stm32g0b1ccu7: review fixes: one ground pin per stacked pair ([2,4] style), lens-only LED glow, white SMA dielectric, SMA model turned to match the footprint · noah 1d ago
stm32g0b1ccu7.lbr stm32g0b1ccu7: review fixes: one ground pin per stacked pair ([2,4] style), lens-only LED glow, white SMA dielectric, SMA model turned to match the footprint · noah 1d ago
stm32g0b1ccu7.step stm32g0b1ccu7: QFN model underside black again (the logo clean-up had coloured it like the pads) · noah 1d ago
verification.json stm32g0b1ccu7: first sign-off superseded by the 2026-10-09 re-check · noah 2h ago

STM32G0B1CCU7

STMicroelectronics · Arm Cortex-M0+ MCU with USB · UFQFPN-48 (7 x 7 mm, 0.5 mm pitch)

STMicroelectronics STM32G0B1CCU7: Arm Cortex-M0+ at up to 64 MHz with 256 KB flash and 144 KB SRAM, crystal-less USB 2.0 full-speed device/host, 12-bit ADC and DAC, in a 7 x 7 mm UFQFPN-48 with an exposed pad. A blank part boots into the ROM USB DFU bootloader (flash empty check), so it can be programmed over USB with no programmer.

Verification

A person checks each page against its datasheet and signs it off here; the badge turns amber if a checked file changes.

Loads on click. Unloads only if this page sits in the background.

Pinout

Pin numbers and names from KiCad's official MCU_ST_STM32G0:STM32G0B1CCUx symbol (UFQFPN-48 pinout, DS13560 Figure 6).

Pin Name Type
1 PC13 bidirectional
2 PC14 bidirectional
3 PC15 bidirectional
4 VBAT power_in
5 VREF+ input
6 VDD power_in
[7,49] VSS power_in
8 PF0 bidirectional
9 PF1 bidirectional
10 PF2 bidirectional
11 PA0 bidirectional
12 PA1 bidirectional
13 PA2 bidirectional
14 PA3 bidirectional
15 PA4 bidirectional
16 PA5 bidirectional
17 PA6 bidirectional
18 PA7 bidirectional
19 PB0 bidirectional
20 PB1 bidirectional
21 PB2 bidirectional
22 PB10 bidirectional
23 PB11 bidirectional
24 PB12 bidirectional
25 PB13 bidirectional
26 PB14 bidirectional
27 PB15 bidirectional
28 PA8 bidirectional
29 PA9/UCPD1_DBCC1 bidirectional
30 PC6 bidirectional
31 PC7 bidirectional
32 PA10/UCPD1_DBCC2 bidirectional
33 PA9/PA11 bidirectional
34 PA10/PA12 bidirectional
35 PA13 bidirectional
36 PA14 bidirectional
37 PA15 bidirectional
38 PD0 bidirectional
39 PD1 bidirectional
40 PD2 bidirectional
41 PD3 bidirectional
42 PB3 bidirectional
43 PB4 bidirectional
44 PB5 bidirectional
45 PB6 bidirectional
46 PB7 bidirectional
47 PB8 bidirectional
48 PB9 bidirectional

Note: the exposed pad (49) is ground, the same as VSS (pin 7). The symbol has one VSS pin numbered [7,49], KiCad's stacked-pin notation, so wiring it connects pin 7 and the exposed pad; the Fusion library connects VSS to pads "7 49" and the Altium library stacks pins 7 and 49.

Key specifications

Parameter Value Source
Core Arm Cortex-M0+, up to 64 MHz Datasheet p.1
Flash 256 KB (the C in CCU7) Datasheet p.1
SRAM 144 KB Datasheet p.1
Supply 1.7 to 3.6 V Datasheet p.1
USB Full-speed device and host, crystal-less Datasheet p.1
ADC / DAC 12-bit / 12-bit Datasheet p.1
GPIOs 44 (48-pin CC device, no VDDIO2) Datasheet Table 2
Temperature -40 to +105 C (suffix 7) Datasheet
Datasheet DS13560 Rev 6 Datasheet

Ordering

Distributor Part number Note
LCSC / JLCPCB C29759424 JLC Extended part, 157 in stock on 2026-10-08
Mouser 511-STM32G0B1CCU7
DigiKey 497-STM32G0B1CCU7-ND

CAD

File What it is
stm32g0b1ccu7.kicad_sym KiCad symbol, with MPN, manufacturer and distributor numbers as properties
stm32g0b1ccu7.kicad_mod KiCad footprint: AMFM:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm_ThermalVias0.3, project library, LCSC land pattern
stm32g0b1ccu7.step / stm32g0b1ccu7.glb 3D model, Z-up, seated on z = 0: LCSC / EasyEDA model (easyeda2kicad), EasyEDA logo stripped, seated on z = 0
stm32g0b1ccu7-etched.step / stm32g0b1ccu7-etched.glb The same model with the part number laser-etched on top as a separate, toggleable Adom.LaserEtch group (a virtual identification aid, not the maker's real marking)
stm32g0b1ccu7.lbr Fusion 360 / EAGLE library: one deviceset, each with its own MPN, manufacturer and LCSC / Mouser / DigiKey attributes
altium/Adom_stm32g0b1ccu7.SchLib / .PcbLib Altium library pair (adom-lbr, no Altium needed): symbol and footprint with the 3D body, parameters carry the part numbers; altium/*.adom-lbr.json is the canonical hub each was built from

The 3D model comes from LCSC's EasyEDA library. Its embossed EasyEDA / LCEDA logo glyphs were removed with OpenCascade (BRepAlgoAPI_Defeaturing, then merging coplanar faces) and the body, pads, size and colours were kept; the source hashes, removed faces and before/after bounding boxes are in page.json under component.provenance. The logo clean-up had also turned the black underside between the pads metal-coloured; it is black again (2026-10-08, record cad/lcsc/clean/UFQFPN48_bottom.recolor.json in the project).

The footprint points at ${KIPRJMOD}/stm32g0b1ccu7.step: copy the STEP next to your KiCad project (or edit the path).

Provenance

  • Datasheet: docs/stm32g0b1ccu7-datasheet.pdf, sha256 8433e47bc5da5cac, retrieved 2026-10-08 from LCSC; manufacturer copy: https://www.st.com/resource/en/datasheet/stm32g0b1cc.pdf
  • Specs: each row names its source: the manufacturer datasheet (with page) or the LCSC parametric listing (retrieved 2026-10-08).
  • Distributor numbers: looked up 2026-10-08 with adom-parts-search (Mouser, DigiKey, JLCPCB), exact part number and manufacturer only.
  • CAD: footprint AMFM:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm_ThermalVias0.3; 3D: LCSC / EasyEDA model (easyeda2kicad), EasyEDA logo stripped, seated on z = 0.