STM32G071CBT6 from STMicroelectronics, in a LQFP-48(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	PC13	bidirectional	General-purpose I/O, 5 V tolerant (FT). Supplied through the RTC power switch - limited to <=2 MHz, <=30 pF, no current-source drive; not for driving LEDs.
2	PC14-OSC32_IN	bidirectional	GPIO PC14 (FT) muxed with 32.768 kHz LSE crystal oscillator input (OSC32_IN). Supplied via the RTC power switch - same 2 MHz/30 pF drive limits as PC13.
3	PC15-OSC32_OUT	bidirectional	GPIO PC15 (FT) muxed with 32.768 kHz LSE crystal oscillator output (OSC32_OUT). Supplied via the RTC power switch - 2 MHz/30 pF drive limits apply.
4	VBAT	power_in	RTC / backup domain supply. Connect to 1.55-3.6 V backup battery, or tie to VDD if unused. Powers RTC, LSE oscillator and backup registers when VDD is absent.
5	VREF+	power_in	ADC/DAC positive reference input, 1.62 V to VDDA. Can be internally driven from VREFBUF (VREF_OUT) as the additional function.
6	VDD/VDDA	power_in	Combined digital (VDD) and analog (VDDA) supply, 1.7 V to 3.6 V. Decouple with 100 nF close to pin; add a 1-10 µF bulk cap near the package.
7	VSS/VSSA	power_in	Combined digital (VSS) and analog (VSSA) ground return. Tie to the board ground plane.
8	PF0-OSC_IN	bidirectional	GPIO PF0 (FT) muxed with the HSE crystal oscillator input (OSC_IN, 4-48 MHz).
9	PF1-OSC_OUT	bidirectional	GPIO PF1 (FT) muxed with the HSE crystal oscillator output (OSC_OUT).
10	PF2-NRST	bidirectional	Bidirectional device reset pin with an internal weak pull-up (also configurable as GPIO PF2 or MCO). Drive low to reset; a 100 nF decoupling cap is recommended.
11	PA0	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a). Muxed with numerous peripherals - see notes.
12	PA1	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
13	PA2	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
14	PA3	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
15	PA4	bidirectional	General-purpose I/O, 3.6 V tolerant with analog switch (TT_a).
16	PA5	bidirectional	General-purpose I/O, 3.6 V tolerant with analog switch (TT_a).
17	PA6	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
18	PA7	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
19	PB0	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
20	PB1	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
21	PB2	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
22	PB10	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable with analog switch (FT_fa).
23	PB11	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable with analog switch (FT_fa).
24	PB12	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
25	PB13	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable (FT_f).
26	PB14	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable (FT_f).
27	PB15	bidirectional	General-purpose I/O, 5 V tolerant, USB Type-C PD capable (FT_c).
28	PA8	bidirectional	General-purpose I/O, 5 V tolerant, USB Type-C PD capable (FT_c).
29	PA9	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable, USB Type-C PD dead-battery function (FT_fd).
30	PC6	bidirectional	General-purpose I/O, 5 V tolerant (FT).
31	PC7	bidirectional	General-purpose I/O, 5 V tolerant (FT).
32	PA10	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable, USB Type-C PD dead-battery function (FT_fd).
33	PA11 [PA9]	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable (FT_f). Can be remapped as PA9 via SYSCFG_CFGR1 (swaps the PA9/PA10 pin pair with PA11/PA12).
34	PA12 [PA10]	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable (FT_f). Can be remapped as PA10 via SYSCFG_CFGR1.
35	PA13	bidirectional	GPIO PA13, 5 V tolerant (FT). Configured at reset as SWDIO with internal pull-up active - used for serial-wire debug.
36	PA14-BOOT0	bidirectional	GPIO PA14 (FT) muxed with BOOT0 (system-memory boot select) and SWCLK. At reset it is SWCLK with an internal pull-down active.
37	PA15	bidirectional	General-purpose I/O, 5 V tolerant (FT).
38	PD0	bidirectional	General-purpose I/O, 5 V tolerant, USB Type-C PD capable (FT_c).
39	PD1	bidirectional	General-purpose I/O, 5 V tolerant, USB Type-C PD dead-battery function (FT_d).
40	PD2	bidirectional	General-purpose I/O, 5 V tolerant, USB Type-C PD capable (FT_c).
41	PD3	bidirectional	General-purpose I/O, 5 V tolerant, USB Type-C PD dead-battery function (FT_d).
42	PB3	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
43	PB4	bidirectional	General-purpose I/O, 5 V tolerant with analog switch (FT_a).
44	PB5	bidirectional	General-purpose I/O, 5 V tolerant (FT).
45	PB6	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable with analog switch (FT_fa).
46	PB7	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable with analog switch (FT_fa).
47	PB8	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable (FT_f).
48	PB9	bidirectional	General-purpose I/O, 5 V tolerant, Fm+ capable (FT_f).

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	LQFP-48(7x7)
Category	MCU
Pins	48

Ordering variants

Same part, different packaging or reel option.

STM32G071CBT6
STM32G071CBT6CBT3
STM32G071CBT6CBT7
STM32G071CBT6C8T6
STM32G071CBT6C8T3
STM32G071CBT6C8T7
STM32G071CBT6CBU6
STM32G071CBT6C8U6
STM32G071CBT6RBT6
STM32G071CBT6R8T6
STM32G071CBT6RBI6
STM32G071CBT6KBT6
STM32G071CBT6K8T6
STM32G071CBT6KBU6
STM32G071CBT6K8U6
STM32G071CBT6GBU6
STM32G071CBT6G8U6
STM32G071CBT6EBY6

CAD (KiCad official)

Symbol: STM32G071CBT6
Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
3D model: LQFP-48(7x7) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`stm32g071cbt6.step`	617 KB	You want the bare part, or you mark your own boards.
`stm32g071cbt6-etched.step`	4.7 MB	You want the part with `STM32G071CBT6` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 1175 faces against 747 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: STMicroelectronics datasheet (136 pp, sha256 42c8a14c1c67b338, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF