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STM8L052R8T6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+100@@ -0,0 +1,100 @@+# STM8L052R8T6++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)++STM8L052R8T6 from STMicroelectronics, in a LQFP-64(10x10). 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 | PA0 | bidirectional | Port A0 configurable as general purpose I/O, SWIM debug interface, beep output, or infrared timer output; high sink LED driver capability. |+| 2 | NRST/PA1 | bidirectional | Power-on reset input or configurable as Port A1 general purpose output only with push-pull or open-drain configuration; external interrupt source. |+| 3 | PA2 | bidirectional | Port A2 configurable as general purpose I/O, HSE oscillator input, alternate USART1 transmit, or alternate SPI1 MISO; 5V tolerant. |+| 4 | PA3 | bidirectional | Port A3 configurable as general purpose I/O, HSE oscillator output, alternate USART1 receive, or alternate SPI1 MOSI; 5V tolerant. |+| 5 | PA4 | bidirectional | Port A4 configurable as general purpose I/O, Timer 2 break input, alternate Timer 2 trigger, LCD common 0, or ADC1 input channel 2; 5V tolerant. |+| 6 | PA5 | bidirectional | Port A5 configurable as general purpose I/O, Timer 3 break input, alternate Timer 3 trigger, LCD common 1, or ADC1 input channel 1; 5V tolerant. |+| 7 | PA6 | bidirectional | Port A6 configurable as general purpose I/O, alternate ADC1 trigger, LCD common 2, or ADC1 input channel 0; 5V tolerant. |+| 8 | PA7 | bidirectional | Port A7 configurable as general purpose I/O, LCD segment 0, or Timer 5 channel 1; 5V tolerant. |+| 9 | VSSA/VREF- | power_in | Analog ground voltage and ADC1 negative voltage reference; must be connected to VSS; supply range 1.8 to 3.6 V. |+| 10 | VSS1 | power_in | I/O and digital power supply ground return; must not be left unconnected; supply range 1.8 to 3.6 V. |+| 11 | VDD1 | power_in | Digital power supply voltage for I/Os and internal regulator; must not be left unconnected; supply range 1.8 to 3.6 V. |+| 12 | VDDA | power_in | Analog supply voltage for ADC peripherals; must be connected to VDD; supply range 1.8 to 3.6 V. |+| 13 | VREF+ | power_in | ADC1 positive voltage reference; must be provided externally; supply range 1.8 to 3.6 V. |+| 14 | PG0 | bidirectional | Port G0 configurable as general purpose I/O, USART3 receive, or alternate Timer 2 break input; 5V tolerant. |+| 15 | PG1 | bidirectional | Port G1 configurable as general purpose I/O, USART3 transmit, or alternate Timer 3 break input; 5V tolerant. |+| 16 | PG2 | bidirectional | Port G2 configurable as general purpose I/O or USART3 synchronous clock; 5V tolerant. |+| 17 | PG3 | bidirectional | Port G3 configurable as general purpose I/O or alternate Timer 3 external trigger; 5V tolerant. |+| 18 | VLCD | power_in | LCD booster external capacitor connection for internal step-up converter to guarantee contrast control; supply range 1.8 to 3.6 V. |+| 19 | PE0 | bidirectional | Port E0 configurable as general purpose I/O, LCD segment 1, Timer 5 channel 2, or RTC tamper 1 detection input; 5V tolerant. |+| 20 | PE1 | bidirectional | Port E1 configurable as general purpose I/O, Timer 1 inverted channel 2, LCD segment 2, or RTC tamper 2 detection input; 5V tolerant. |+| 21 | PE2 | bidirectional | Port E2 configurable as general purpose I/O, Timer 1 inverted channel 3, LCD segment 3, or RTC tamper 3 detection input; 5V tolerant. |+| 22 | PE3 | bidirectional | Port E3 configurable as general purpose I/O, LCD segment 4, or USART2 receive; 5V tolerant. |+| 23 | PE4 | bidirectional | Port E4 configurable as general purpose I/O, LCD segment 5, or USART2 transmit; 5V tolerant. |+| 24 | PE5 | bidirectional | Port E5 configurable as general purpose I/O, LCD segment 6, ADC1 input channel 23, or USART2 synchronous clock; 5V tolerant. |+| 25 | PD0 | bidirectional | Port D0 configurable as general purpose I/O, Timer 3 channel 2, alternate ADC1 trigger, LCD segment 7, or ADC1 input channel 22; 5V tolerant. |+| 26 | PD1 | bidirectional | Port D1 configurable as general purpose I/O, Timer 3 external trigger, LCD common 3, or ADC1 input channel 21; 5V tolerant. |+| 27 | PD2 | bidirectional | Port D2 configurable as general purpose I/O, Timer 1 channel 1, LCD segment 8, or ADC1 input channel 20; 5V tolerant. |+| 28 | PD3 | bidirectional | Port D3 configurable as general purpose I/O, Timer 1 external trigger, LCD segment 9, or ADC1 input channel 19; 5V tolerant. |+| 29 | VDD3 | power_in | I/O supply voltage; must not be left unconnected; supply range 1.8 to 3.6 V. |+| 30 | VSS3 | power_in | I/O ground return; must not be left unconnected; supply range 1.8 to 3.6 V. |+| 31 | PB0 | bidirectional | Port B0 configurable as general purpose I/O, Timer 2 channel 1, LCD segment 10, or ADC1 input channel 18; 5V tolerant; pull-up applied during reset, input floating after reset release. |+| 32 | PB1 | bidirectional | Port B1 configurable as general purpose I/O, Timer 3 channel 1, LCD segment 11, or ADC1 input channel 17; 5V tolerant. |+| 33 | PB2 | bidirectional | Port B2 configurable as general purpose I/O, Timer 2 channel 2, LCD segment 12, or ADC1 input channel 16; 5V tolerant. |+| 34 | PB3 | bidirectional | Port B3 configurable as general purpose I/O, Timer 2 external trigger, LCD segment 13, or ADC1 input channel 15; 5V tolerant. |+| 35 | PB4 | bidirectional | Port B4 configurable as general purpose I/O, alternate SPI1 master/slave select, LCD segment 14, or ADC1 input channel 14; 5V tolerant; pull-up applied during reset. |+| 36 | PB5 | bidirectional | Port B5 configurable as general purpose I/O, alternate SPI1 clock, LCD segment 15, or ADC1 input channel 13; 5V tolerant. |+| 37 | PB6 | bidirectional | Port B6 configurable as general purpose I/O, alternate SPI1 master out/slave in, LCD segment 16, or ADC1 input channel 12; 5V tolerant. |+| 38 | PB7 | bidirectional | Port B7 configurable as general purpose I/O, alternate SPI1 master in/slave out, LCD segment 17, or ADC1 input channel 11; 5V tolerant. |+| 39 | PF0 | bidirectional | Port F0 configurable as general purpose I/O, ADC1 input channel 24, or alternate USART3 transmit. |+| 40 | PF1 | bidirectional | Port F1 configurable as general purpose I/O, ADC1 input channel 25, or alternate USART3 receive. |+| 41 | PF4 | bidirectional | Port F4 configurable as general purpose I/O, LCD segment 36, or LCD common 4 with SEG/COM multiplexing available; 5V tolerant. |+| 42 | PF5 | bidirectional | Port F5 configurable as general purpose I/O, LCD segment 37, or LCD common 5 with SEG/COM multiplexing available; 5V tolerant. |+| 43 | PF6 | bidirectional | Port F6 configurable as general purpose I/O, LCD segment 38, or LCD common 6 with SEG/COM multiplexing available; 5V tolerant. |+| 44 | PF7 | bidirectional | Port F7 configurable as general purpose I/O, LCD segment 39, or LCD common 7 with SEG/COM multiplexing available; 5V tolerant. |+| 45 | PD4 | bidirectional | Port D4 configurable as general purpose I/O, Timer 1 channel 2, LCD segment 18, or ADC1 input channel 10; 5V tolerant. |+| 46 | PD5 | bidirectional | Port D5 configurable as general purpose I/O, Timer 1 channel 3, LCD segment 19, or ADC1 input channel 9; 5V tolerant. |+| 47 | PD6 | bidirectional | Port D6 configurable as general purpose I/O, Timer 1 break input, LCD segment 20, ADC1 input channel 8, RTC calibration input, or internal voltage reference output; 5V tolerant. |+| 48 | PD7 | bidirectional | Port D7 configurable as general purpose I/O, Timer 1 inverted channel 1, LCD segment 21, ADC1 input channel 7, RTC alarm output, or internal voltage reference output; 5V tolerant. |+| 49 | PG4 | bidirectional | Port G4 configurable as general purpose I/O or SPI2 master/slave select; 5V tolerant. |+| 50 | PG5 | bidirectional | Port G5 configurable as general purpose I/O or SPI2 clock; 5V tolerant. |+| 51 | PG6 | bidirectional | Port G6 configurable as general purpose I/O or SPI2 master out/slave in; 5V tolerant. |+| 52 | PG7 | bidirectional | Port G7 configurable as general purpose I/O or SPI2 master in/slave out; 5V tolerant. |+| 53 | PC0 | bidirectional | Port C0 configurable as general purpose I/O or I2C1 serial data with true open-drain output; 5V tolerant without protection diode to VDD. |+| 54 | PC1 | bidirectional | Port C1 configurable as general purpose I/O or I2C1 serial clock with true open-drain output; 5V tolerant without protection diode to VDD. |+| 55 | VDD2 | power_in | I/O supply voltage; must not be left unconnected; supply range 1.8 to 3.6 V. |+| 56 | VSS2 | power_in | I/O ground return; must not be left unconnected; supply range 1.8 to 3.6 V. |+| 57 | PC2 | bidirectional | Port C2 configurable as general purpose I/O, USART1 receive, LCD segment 22, ADC1 input channel 6, or internal voltage reference output; 5V tolerant. |+| 58 | PC3 | bidirectional | Port C3 configurable as general purpose I/O, USART1 transmit, LCD segment 23, or ADC1 input channel 5; 5V tolerant. |+| 59 | PC4 | bidirectional | Port C4 configurable as general purpose I/O, USART1 synchronous clock, I2C1 SMBus interface, configurable clock output, or ADC1 input channel 4; 5V tolerant. |+| 60 | PC5 | bidirectional | Port C5 configurable as general purpose I/O, LSE oscillator input, alternate SPI1 master/slave select, or alternate USART1 transmit; 5V tolerant. |+| 61 | PC6 | bidirectional | Port C6 configurable as general purpose I/O, LSE oscillator output, alternate SPI1 clock, or alternate USART1 receive; 5V tolerant. |+| 62 | PC7 | bidirectional | Port C7 configurable as general purpose I/O or ADC1 input channel 3; 5V tolerant. |+| 63 | PE6 | bidirectional | Port E6 configurable as general purpose I/O, programmable voltage detector input, or Timer 5 break input; 5V tolerant. |+| 64 | PE7 | bidirectional | Port E7 configurable as general purpose I/O or Timer 5 external trigger; 5V tolerant. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-64(10x10) |+| Category | Embedded Processors & Controllers |+| Pins | 64 |++## CAD (KiCad official)++- Symbol: `STM8L052R8T6`+- Footprint: `Package_QFP:LQFP-64_10x10mm_P0.5mm`+- 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)+- 3D model files: `stm8l052r8t6-etched.step` / `stm8l052r8t6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm8l052r8t6.step` / `stm8l052r8t6.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/8586175707394924544) (55 pp, sha256 `c6e456a46f9e5c98`, retrieved 2026-09-22, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5` (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/stm8l052r8t6-datasheet.pdf)
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high sink LED driver capability."+ },+ {+ "number": "2",+ "name": "NRST/PA1",+ "type": "bidirectional",+ "description": "Power-on reset input or configurable as Port A1 general purpose output only with push-pull or open-drain configuration; external interrupt source."+ },+ {+ "number": "3",+ "name": "PA2",+ "type": "bidirectional",+ "description": "Port A2 configurable as general purpose I/O, HSE oscillator input, alternate USART1 transmit, or alternate SPI1 MISO; 5V tolerant."+ },+ {+ "number": "4",+ "name": "PA3",+ "type": "bidirectional",+ "description": "Port A3 configurable as general purpose I/O, HSE oscillator output, alternate USART1 receive, or alternate SPI1 MOSI; 5V tolerant."+ },+ {+ "number": "5",+ "name": "PA4",+ "type": "bidirectional",+ "description": "Port A4 configurable as general purpose I/O, Timer 2 break input, alternate Timer 2 trigger, LCD common 0, or ADC1 input channel 2; 5V tolerant."+ },+ {+ "number": "6",+ "name": "PA5",+ "type": "bidirectional",+ "description": "Port A5 configurable as general purpose I/O, Timer 3 break input, alternate Timer 3 trigger, LCD common 1, or ADC1 input channel 1; 5V tolerant."+ },+ {+ "number": "7",+ "name": "PA6",+ "type": "bidirectional",+ "description": "Port A6 configurable as general purpose I/O, alternate ADC1 trigger, LCD common 2, or ADC1 input channel 0; 5V tolerant."+ },+ {+ "number": "8",+ "name": "PA7",+ "type": "bidirectional",+ "description": "Port A7 configurable as general purpose I/O, LCD segment 0, or Timer 5 channel 1; 5V tolerant."+ },+ {+ "number": "9",+ "name": "VSSA/VREF-",+ "type": "power_in",+ "description": "Analog ground voltage and ADC1 negative voltage reference; must be connected to VSS; supply range 1.8 to 3.6 V."+ },+ {+ "number": "10",+ "name": "VSS1",+ "type": "power_in",+ "description": "I/O and digital power supply ground return; must not be left unconnected; supply range 1.8 to 3.6 V."+ },+ {+ "number": "11",+ "name": "VDD1",+ "type": "power_in",+ "description": "Digital power supply voltage for I/Os and internal regulator; must not be left unconnected; supply range 1.8 to 3.6 V."+ },+ {+ "number": "12",+ "name": "VDDA",+ "type": "power_in",+ "description": "Analog supply voltage for ADC peripherals; must be connected to VDD; supply range 1.8 to 3.6 V."+ },+ {+ "number": "13",+ "name": "VREF+",+ "type": "power_in",+ "description": "ADC1 positive voltage reference; must be provided externally; supply range 1.8 to 3.6 V."+ },+ {+ "number": "14",+ "name": "PG0",+ "type": "bidirectional",+ "description": "Port G0 configurable as general purpose I/O, USART3 receive, or alternate Timer 2 break input; 5V tolerant."+ },+ {+ "number": "15",+ "name": "PG1",+ "type": "bidirectional",+ "description": "Port G1 configurable as general purpose I/O, USART3 transmit, or alternate Timer 3 break input; 5V tolerant."+ },+ {+ "number": "16",+ "name": "PG2",+ "type": "bidirectional",+ "description": "Port G2 configurable as general purpose I/O or USART3 synchronous clock; 5V tolerant."+ },+ {+ "number": "17",+ "name": "PG3",+ "type": "bidirectional",+ "description": "Port G3 configurable as general purpose I/O or alternate Timer 3 external trigger; 5V tolerant."+ },+ {+ "number": "18",+ "name": "VLCD",+ "type": "power_in",+ "description": "LCD booster external capacitor connection for internal step-up converter to guarantee contrast control; supply range 1.8 to 3.6 V."+ },+ {+ "number": "19",+ "name": "PE0",+ "type": "bidirectional",+ "description": "Port E0 configurable as general purpose I/O, LCD segment 1, Timer 5 channel 2, or RTC tamper 1 detection input; 5V tolerant."+ },+ {+ "number": "20",+ "name": "PE1",+ "type": "bidirectional",+ "description": "Port E1 configurable as general purpose I/O, Timer 1 inverted channel 2, LCD segment 2, or RTC tamper 2 detection input; 5V tolerant."+ },+ {+ "number": "21",+ "name": "PE2",+ "type": "bidirectional",+ "description": "Port E2 configurable as general purpose I/O, Timer 1 inverted channel 3, LCD segment 3, or RTC tamper 3 detection input; 5V tolerant."+ },+ {+ "number": "22",+ "name": "PE3",+ "type": "bidirectional",+ "description": "Port E3 configurable as general purpose I/O, LCD segment 4, or USART2 receive; 5V tolerant."+ },+ {+ "number": "23",+ "name": "PE4",+ "type": "bidirectional",+ "description": "Port E4 configurable as general purpose I/O, LCD segment 5, or USART2 transmit; 5V tolerant."+ },+ {+ "number": "24",+ "name": "PE5",+ "type": "bidirectional",+ "description": "Port E5 configurable as general purpose I/O, LCD segment 6, ADC1 input channel 23, or USART2 synchronous clock; 5V tolerant."+ },+ {+ "number": "25",+ "name": "PD0",+ "type": "bidirectional",+ "description": "Port D0 configurable as general purpose I/O, Timer 3 channel 2, alternate ADC1 trigger, LCD segment 7, or ADC1 input channel 22; 5V tolerant."+ },+ {+ "number": "26",+ "name": "PD1",+ "type": "bidirectional",+ "description": "Port D1 configurable as general purpose I/O, Timer 3 external trigger, LCD common 3, or ADC1 input channel 21; 5V tolerant."+ },+ {+ "number": "27",+ "name": "PD2",+ "type": "bidirectional",+ "description": "Port D2 configurable as general purpose I/O, Timer 1 channel 1, LCD segment 8, or ADC1 input channel 20; 5V tolerant."+ },+ {+ "number": "28",+ "name": "PD3",+ "type": "bidirectional",+ "description": "Port D3 configurable as general purpose I/O, Timer 1 external trigger, LCD segment 9, or ADC1 input channel 19; 5V tolerant."+ },+ {+ "number": "29",+ "name": "VDD3",+ "type": "power_in",+ "description": "I/O supply voltage; must not be left unconnected; supply range 1.8 to 3.6 V."+ },+ {+ "number": "30",+ "name": "VSS3",+ "type": "power_in",+ "description": "I/O ground return; must not be left unconnected; supply range 1.8 to 3.6 V."+ },+ {+ "number": "31",+ "name": "PB0",+ "type": "bidirectional",+ "description": "Port B0 configurable as general purpose I/O, Timer 2 channel 1, LCD segment 10, or ADC1 input channel 18; 5V tolerant; pull-up applied during reset, input floating after reset release."+ },+ {+ "number": "32",+ "name": "PB1",+ "type": "bidirectional",+ "description": "Port B1 configurable as general purpose I/O, Timer 3 channel 1, LCD segment 11, or ADC1 input channel 17; 5V tolerant."+ },+ {+ "number": "33",+ "name": "PB2",+ "type": "bidirectional",+ "description": "Port B2 configurable as general purpose I/O, Timer 2 channel 2, LCD segment 12, or ADC1 input channel 16; 5V tolerant."+ },+ {+ "number": "34",+ "name": "PB3",+ "type": "bidirectional",+ "description": "Port B3 configurable as general purpose I/O, Timer 2 external trigger, LCD segment 13, or ADC1 input channel 15; 5V tolerant."+ },+ {+ "number": "35",+ "name": "PB4",+ "type": "bidirectional",+ "description": "Port B4 configurable as general purpose I/O, alternate SPI1 master/slave select, LCD segment 14, or ADC1 input channel 14; 5V tolerant; pull-up applied during reset."+ },+ {+ "number": "36",+ "name": "PB5",+ "type": "bidirectional",+ "description": "Port B5 configurable as general purpose I/O, alternate SPI1 clock, LCD segment 15, or ADC1 input channel 13; 5V tolerant."+ },+ {+ "number": "37",+ "name": "PB6",+ "type": "bidirectional",+ "description": "Port B6 configurable as general purpose I/O, alternate SPI1 master out/slave in, LCD segment 16, or ADC1 input channel 12; 5V tolerant."+ },+ {+ "number": "38",+ "name": "PB7",+ "type": "bidirectional",+ "description": "Port B7 configurable as general purpose I/O, alternate SPI1 master in/slave out, LCD segment 17, or ADC1 input channel 11; 5V tolerant."+ },+ {+ "number": "39",+ "name": "PF0",+ "type": "bidirectional",+ "description": "Port F0 configurable as general purpose I/O, ADC1 input channel 24, or alternate USART3 transmit."+ },+ {+ "number": "40",+ "name": "PF1",+ "type": "bidirectional",+ "description": "Port F1 configurable as general purpose I/O, ADC1 input channel 25, or alternate USART3 receive."+ },+ {+ "number": "41",+ "name": "PF4",+ "type": "bidirectional",+ "description": "Port F4 configurable as general purpose I/O, LCD segment 36, or LCD common 4 with SEG/COM multiplexing available; 5V tolerant."+ },+ {+ "number": "42",+ "name": "PF5",+ "type": "bidirectional",+ "description": "Port F5 configurable as general purpose I/O, LCD segment 37, or LCD common 5 with SEG/COM multiplexing available; 5V tolerant."+ },+ {+ "number": "43",+ "name": "PF6",+ "type": "bidirectional",+ "description": "Port F6 configurable as general purpose I/O, LCD segment 38, or LCD common 6 with SEG/COM multiplexing available; 5V tolerant."+ },+ {+ "number": "44",+ "name": "PF7",+ "type": "bidirectional",+ "description": "Port F7 configurable as general purpose I/O, LCD segment 39, or LCD common 7 with SEG/COM multiplexing available; 5V tolerant."+ },+ {+ "number": "45",+ "name": "PD4",+ "type": "bidirectional",+ "description": "Port D4 configurable as general purpose I/O, Timer 1 channel 2, LCD segment 18, or ADC1 input channel 10; 5V tolerant."+ },+ {+ "number": "46",+ "name": "PD5",+ "type": "bidirectional",+ "description": "Port D5 configurable as general purpose I/O, Timer 1 channel 3, LCD segment 19, or ADC1 input channel 9; 5V tolerant."+ },+ {+ "number": "47",+ "name": "PD6",+ "type": "bidirectional",+ "description": "Port D6 configurable as general purpose I/O, Timer 1 break input, LCD segment 20, ADC1 input channel 8, RTC calibration input, or internal voltage reference output; 5V tolerant."+ },+ {+ "number": "48",+ "name": "PD7",+ "type": "bidirectional",+ "description": "Port D7 configurable as general purpose I/O, Timer 1 inverted channel 1, LCD segment 21, ADC1 input channel 7, RTC alarm output, or internal voltage reference output; 5V tolerant."+ },+ {+ "number": "49",+ "name": "PG4",+ "type": "bidirectional",+ "description": "Port G4 configurable as general purpose I/O or SPI2 master/slave select; 5V tolerant."+ },+ {+ "number": "50",+ "name": "PG5",+ "type": "bidirectional",+ "description": "Port G5 configurable as general purpose I/O or SPI2 clock; 5V tolerant."+ },+ {+ "number": "51",+ "name": "PG6",+ "type": "bidirectional",+ "description": "Port G6 configurable as general purpose I/O or SPI2 master out/slave in; 5V tolerant."+ },+ {+ "number": "52",+ "name": "PG7",+ "type": "bidirectional",+ "description": "Port G7 configurable as general purpose I/O or SPI2 master in/slave out; 5V tolerant."+ },+ {+ "number": "53",+ "name": "PC0",+ "type": "bidirectional",+ "description": "Port C0 configurable as general purpose I/O or I2C1 serial data with true open-drain output; 5V tolerant without protection diode to VDD."+ },+ {+ "number": "54",+ "name": "PC1",+ "type": "bidirectional",+ "description": "Port C1 configurable as general purpose I/O or I2C1 serial clock with true open-drain output; 5V tolerant without protection diode to VDD."+ },+ {+ "number": "55",+ "name": "VDD2",+ "type": "power_in",+ "description": "I/O supply voltage; must not be left unconnected; supply range 1.8 to 3.6 V."+ },+ {+ "number": "56",+ "name": "VSS2",+ "type": "power_in",+ "description": "I/O ground return; must not be left unconnected; supply range 1.8 to 3.6 V."+ },+ {+ "number": "57",+ "name": "PC2",+ "type": "bidirectional",+ "description": "Port C2 configurable as general purpose I/O, USART1 receive, LCD segment 22, ADC1 input channel 6, or internal voltage reference output; 5V tolerant."+ },+ {+ "number": "58",+ "name": "PC3",+ "type": "bidirectional",+ "description": "Port C3 configurable as general purpose I/O, USART1 transmit, LCD segment 23, or ADC1 input channel 5; 5V tolerant."+ },+ {+ "number": "59",+ "name": "PC4",+ "type": "bidirectional",+ "description": "Port C4 configurable as general purpose I/O, USART1 synchronous clock, I2C1 SMBus interface, configurable clock output, or ADC1 input channel 4; 5V tolerant."+ },+ {+ "number": "60",+ "name": "PC5",+ "type": "bidirectional",+ "description": "Port C5 configurable as general purpose I/O, LSE oscillator input, alternate SPI1 master/slave select, or alternate USART1 transmit; 5V tolerant."+ },+ {+ "number": "61",+ "name": "PC6",+ "type": "bidirectional",+ "description": "Port C6 configurable as general purpose I/O, LSE oscillator output, alternate SPI1 clock, or alternate USART1 receive; 5V tolerant."+ },+ {+ "number": "62",+ "name": "PC7",+ "type": "bidirectional",+ "description": "Port C7 configurable as general purpose I/O or ADC1 input channel 3; 5V tolerant."+ },+ {+ "number": "63",+ "name": "PE6",+ "type": "bidirectional",+ "description": "Port E6 configurable as general purpose I/O, programmable voltage detector input, or Timer 5 break input; 5V tolerant."+ },+ {+ "number": "64",+ "name": "PE7",+ "type": "bidirectional",+ "description": "Port E7 configurable as general purpose I/O or Timer 5 external trigger; 5V tolerant."+ }+ ],+ "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-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Some pins have protection diode characteristics that differ from typical GPIO: PC0 and PC1 are speci; PA0 pin has special LED driver capability notation and SWIM function which requires careful electric; NRST/PA1 has dual function (reset input and GPIO output only) which may require special handling in ",+ "2/64 pins cited to the wrong page (name found elsewhere): ['55:VDD2@p23', '56:VSS2@p23']"+ ],+ "pages_sent": 55,+ "cost_usd": 0.6938,+ "at": "2026-09-22T18:30:38"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586175707394924544",+ "pages": 55,+ "sha256": "c6e456a46f9e5c98",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 64,+ "described": 64,+ "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]"+ }+}