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STM8L101F3U6TR
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-20(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+56@@ -0,0 +1,56 @@+# STM8L101F3U6TR++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · UFQFPN-20(3x3)++STM8L101F3U6TR from STMicroelectronics, in a UFQFPN-20(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | NRST/PA1 | bidirectional | Reset input with internal pull-up (30-60 kΩ); pulses ≤50 ns filtered; after reset release can be reconfigured as PA1 push-pull output only (open-drain and input modes are not available per RM0013). |+| 2 | PA2 | bidirectional | General-purpose bidirectional I/O on Port A2 with programmable weak pull-up (30-60 kΩ), 20 mA high sink/source capability, and external-interrupt capability. |+| 3 | PA3 | bidirectional | General-purpose bidirectional I/O on Port A3 with programmable weak pull-up (30-60 kΩ), 20 mA high sink/source capability, and external-interrupt capability. |+| 4 | VSS | power_in | Ground reference for all internal and I/O circuitry; maximum total sink current 80 mA. |+| 5 | VDD | power_in | Main power supply, 1.65 V to 3.6 V operating range; maximum total source current 80 mA. |+| 6 | PD0/TIM3_CH2/COMP1_CH3 | bidirectional | General-purpose bidirectional I/O on Port D0 with 20 mA high sink/source capability; alternate functions: Timer 3 channel 2 (output compare/PWM) and Comparator 1 analog input channel 3. |+| 7 | PB0/TIM2_CH1/COMP1_CH1 | bidirectional | General-purpose bidirectional I/O on Port B0 (pull-up active during reset phase, input floating after reset release) with 20 mA high sink/source; alternate functions: Timer 2 channel 1 and Comparator 1 analog input channel 1. |+| 8 | PB1/TIM3_CH1/COMP1_CH2 | bidirectional | General-purpose bidirectional I/O on Port B1 with 20 mA high sink/source capability; alternate functions: Timer 3 channel 1 and Comparator 1 analog input channel 2. |+| 9 | PB2/TIM2_CH2/COMP2_CH1 | bidirectional | General-purpose bidirectional I/O on Port B2 with 20 mA high sink/source capability; alternate functions: Timer 2 channel 2 and Comparator 2 analog input channel 1. |+| 10 | PB3/TIM2_ETR/COMP2_CH2 | bidirectional | General-purpose bidirectional I/O on Port B3 with 20 mA high sink/source capability; alternate functions: Timer 2 external trigger input and Comparator 2 analog input channel 2. |+| 11 | PB4/SPI_NSS | bidirectional | General-purpose bidirectional I/O on Port B4 (pull-up active during reset phase, input floating after reset release) with 20 mA high sink/source; alternate function: SPI master/slave select. |+| 12 | PB5/SPI_SCK | bidirectional | General-purpose bidirectional I/O on Port B5 with 20 mA high sink/source; alternate function: SPI clock up to 8 MHz in master or slave mode. |+| 13 | PB6/SPI_MOSI | bidirectional | General-purpose bidirectional I/O on Port B6 with 20 mA high sink/source; alternate function: SPI master-out/slave-in data line. |+| 14 | PB7/SPI_MISO | bidirectional | General-purpose bidirectional I/O on Port B7 with 20 mA high sink/source; alternate function: SPI master-in/slave-out data line. |+| 15 | PC0/I2C_SDA | bidirectional | General-purpose bidirectional I/O on Port C0 with true open-drain output only (no P-buffer, no weak pull-up, no protection diode to VDD); alternate function: I2C SDA supporting standard (100 kHz) and fast (400 kHz) modes. |+| 16 | PC1/I2C_SCL | bidirectional | General-purpose bidirectional I/O on Port C1 with true open-drain output only (no P-buffer, no weak pull-up, no protection diode to VDD); alternate function: I2C SCL supporting standard (100 kHz) and fast (400 kHz) modes. |+| 17 | PC2/USART_RX | bidirectional | General-purpose bidirectional I/O on Port C2 with 20 mA high sink/source; alternate function: USART receive with fractional baud rate generator. |+| 18 | PC3/USART_TX | bidirectional | General-purpose bidirectional I/O on Port C3 with 20 mA high sink/source; alternate function: USART transmit with fractional baud rate generator. |+| 19 | PC4/USART_CK/CCO | bidirectional | General-purpose bidirectional I/O on Port C4 with 20 mA high sink/source; alternate functions: USART synchronous clock output and configurable clock output (CCO). |+| 20 | PA0/SWIM/BEEP/IR_TIM | bidirectional | Port A0 held in input pull-up during reset and after reset release; provides SWIM single-wire debug interface, beeper output (1/2/4 kHz), and infrared timer output with high-sink LED driver capability (VOL ≤ 0.9 V at IIO = 20 mA, VDD = 2.0 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | UFQFPN-20(3x3) |+| Category | Embedded Processors & Controllers |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `STM8L101F3U6TR`+- Footprint: `Package_DFN_QFN:ST_UFQFPN-20_3x3mm_P0.5mm`+- 3D model: UFQFPN-20(3x3) (KiCad packages3D, STEP)+- 3D model files: `stm8l101f3u6tr-etched.step` / `stm8l101f3u6tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm8l101f3u6tr.step` / `stm8l101f3u6tr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181949774319616) (88 pp, sha256 `c8e0b0d1f3c75a46`, retrieved 2026-09-26, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/stm8l101f3u6tr-datasheet.pdf)
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pulses ≤50 ns filtered; after reset release can be reconfigured as PA1 push-pull output only (open-drain and input modes are not available per RM0013)."+ },+ {+ "number": "2",+ "name": "PA2",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port A2 with programmable weak pull-up (30-60 kΩ), 20 mA high sink/source capability, and external-interrupt capability."+ },+ {+ "number": "3",+ "name": "PA3",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port A3 with programmable weak pull-up (30-60 kΩ), 20 mA high sink/source capability, and external-interrupt capability."+ },+ {+ "number": "4",+ "name": "VSS",+ "type": "power_in",+ "description": "Ground reference for all internal and I/O circuitry; maximum total sink current 80 mA."+ },+ {+ "number": "5",+ "name": "VDD",+ "type": "power_in",+ "description": "Main power supply, 1.65 V to 3.6 V operating range; maximum total source current 80 mA."+ },+ {+ "number": "6",+ "name": "PD0/TIM3_CH2/COMP1_CH3",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port D0 with 20 mA high sink/source capability; alternate functions: Timer 3 channel 2 (output compare/PWM) and Comparator 1 analog input channel 3."+ },+ {+ "number": "7",+ "name": "PB0/TIM2_CH1/COMP1_CH1",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port B0 (pull-up active during reset phase, input floating after reset release) with 20 mA high sink/source; alternate functions: Timer 2 channel 1 and Comparator 1 analog input channel 1."+ },+ {+ "number": "8",+ "name": "PB1/TIM3_CH1/COMP1_CH2",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port B1 with 20 mA high sink/source capability; alternate functions: Timer 3 channel 1 and Comparator 1 analog input channel 2."+ },+ {+ "number": "9",+ "name": "PB2/TIM2_CH2/COMP2_CH1",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port B2 with 20 mA high sink/source capability; alternate functions: Timer 2 channel 2 and Comparator 2 analog input channel 1."+ },+ {+ "number": "10",+ "name": "PB3/TIM2_ETR/COMP2_CH2",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port B3 with 20 mA high sink/source capability; alternate functions: Timer 2 external trigger input and Comparator 2 analog input channel 2."+ },+ {+ "number": "11",+ "name": "PB4/SPI_NSS",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port B4 (pull-up active during reset phase, input floating after reset release) with 20 mA high sink/source; alternate function: SPI master/slave select."+ },+ {+ "number": "12",+ "name": "PB5/SPI_SCK",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port B5 with 20 mA high sink/source; alternate function: SPI clock up to 8 MHz in master or slave mode."+ },+ {+ "number": "13",+ "name": "PB6/SPI_MOSI",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port B6 with 20 mA high sink/source; alternate function: SPI master-out/slave-in data line."+ },+ {+ "number": "14",+ "name": "PB7/SPI_MISO",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port B7 with 20 mA high sink/source; alternate function: SPI master-in/slave-out data line."+ },+ {+ "number": "15",+ "name": "PC0/I2C_SDA",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port C0 with true open-drain output only (no P-buffer, no weak pull-up, no protection diode to VDD); alternate function: I2C SDA supporting standard (100 kHz) and fast (400 kHz) modes."+ },+ {+ "number": "16",+ "name": "PC1/I2C_SCL",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port C1 with true open-drain output only (no P-buffer, no weak pull-up, no protection diode to VDD); alternate function: I2C SCL supporting standard (100 kHz) and fast (400 kHz) modes."+ },+ {+ "number": "17",+ "name": "PC2/USART_RX",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port C2 with 20 mA high sink/source; alternate function: USART receive with fractional baud rate generator."+ },+ {+ "number": "18",+ "name": "PC3/USART_TX",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port C3 with 20 mA high sink/source; alternate function: USART transmit with fractional baud rate generator."+ },+ {+ "number": "19",+ "name": "PC4/USART_CK/CCO",+ "type": "bidirectional",+ "description": "General-purpose bidirectional I/O on Port C4 with 20 mA high sink/source; alternate functions: USART synchronous clock output and configurable clock output (CCO)."+ },+ {+ "number": "20",+ "name": "PA0/SWIM/BEEP/IR_TIM",+ "type": "bidirectional",+ "description": "Port A0 held in input pull-up during reset and after reset release; provides SWIM single-wire debug interface, beeper output (1/2/4 kHz), and infrared timer output with high-sink LED driver capability (VOL ≤ 0.9 V at IIO = 20 mA, VDD = 2.0 V)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: UFQFPN20(3x3) package with COMP_REF is specific to STM8L101F3U6TR/F2U6TR/F1U6ATR variants; other var"+ ],+ "pages_sent": 88,+ "cost_usd": 0.7235,+ "at": "2026-09-26T20:23:25"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181949774319616",+ "pages": 88,+ "sha256": "c8e0b0d1f3c75a46",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 20,+ "described": 20,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}