STC8G1K08-36I-SOP8

@@ -0,0 +1,48 @@+# STC8G1K08-36I-SOP8++**STC Micro** · Microcontrollers (MCU/MPU/SOC) · SOP-8++STC8G1K08-36I-SOP8 from STC Micro, in a SOP-8. 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 | P5.4/nRST/MCLKO/INT2/T0/T1CLKO/RxD_3/MOSI/SCL_2 | bidirectional | General-purpose I/O P5.4. Selectable functions: external reset input nRST (active low), master-clock divided output MCLKO, external interrupt INT2, Timer 0 external clock input T0, Timer 1 divided clock output T1CLKO, UART1 RX (mapping 3) RxD_3, SPI MOSI, and I2C clock SCL (secondary mapping). Supports quasi-bidirectional, push-pull, open-drain and high-impedance input modes with optional 4K pull-up. |+| 2 | VCC | power_in | Positive supply voltage input. Operating range typically 1.9 V to 5.5 V. Add a 10 µF bulk and 0.1 µF decoupling capacitor between VCC and GND close to the pin. |+| 3 | P5.5/INT3/T1/T0CLKO/TxD_3/SS/SDA_2 | bidirectional | General-purpose I/O P5.5. Selectable functions: external interrupt INT3, Timer 1 external clock input T1, Timer 0 divided clock output T0CLKO, UART1 TX (mapping 3) TxD_3, SPI slave-select SS, and I2C data SDA (secondary mapping). Supports quasi-bidirectional, push-pull, open-drain and high-impedance input modes. |+| 4 | GND | power_in | Ground / 0 V reference for the device. Also serves as analog ground (AGND) reference for the ADC. |+| 5 | P3.0/RxD/INT4 | bidirectional | General-purpose I/O P3.0. Selectable functions: UART1 default receive RxD and external interrupt INT4. Powers up in weak-pull-up (quasi-bidirectional) mode. Do not hold P3.0, P3.1 and P3.2 low simultaneously at power-up unless USB-ISP entry is desired. |+| 6 | P3.1/TxD | bidirectional | General-purpose I/O P3.1. Selectable function: UART1 default transmit TxD. Powers up in weak-pull-up (quasi-bidirectional) mode. |+| 7 | P3.2/INT0/SCLK/SCL/RxD_2 | bidirectional | General-purpose I/O P3.2. Selectable functions: external interrupt INT0, SPI clock SCLK, I2C clock SCL (default mapping), and UART1 RX (mapping 2) RxD_2. Powers up in high-impedance input state. |+| 8 | P3.3/INT1/MISO/SDA/TxD_2 | bidirectional | General-purpose I/O P3.3. Selectable functions: external interrupt INT1, SPI MISO, I2C data SDA (default mapping), and UART1 TX (mapping 2) TxD_2. Powers up in high-impedance input state. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STC Micro |+| Package | SOP-8 |+| Category | MCU |+| Pins | 8 |++## Ordering variants++- `STC8G1K08-36I-SOP836I-SOP8`+- `STC8G1K08-36I-SOP836I-DFN8`++## CAD (KiCad official)++- Symbol: `STC8G1K08-36I-SOP8`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STC Micro datasheet](docs/stc8g1k08-36i-sop8-datasheet.pdf) (1240 pp, sha256 `7d5e82c9f651aa92`, retrieved 2026-08-17, tier: lcsc)+- **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](docs/stc8g1k08-36i-sop8-datasheet.pdf)

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