STC8H1K08-36I-TSSOP20

@@ -0,0 +1,62 @@+# STC8H1K08-36I-TSSOP20++**STC Micro** · Microcontrollers (MCU/MPU/SOC) · TSSOP-20++STC8H1K08-36I-TSSOP20 from STC Micro, in a TSSOP-20. 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 | P1.2/SS/T2/PWM2P | bidirectional | General-purpose I/O P1.2. Muxed alternate functions: SPI slave-select (SS), Timer 2 external clock input (T2), advanced PWM2 capture input / positive pulse output (PWM2P). |+| 2 | P1.3/MOSI/T2CLKO/PWM2N | bidirectional | General-purpose I/O P1.3. Alternate functions: SPI MOSI, Timer 2 clock divide output (T2CLKO), advanced PWM2 negative pulse output (PWM2N). |+| 3 | P1.4/MISO/SDA/PWM3P | bidirectional | General-purpose I/O P1.4. Alternate functions: SPI MISO, I2C data line (SDA), advanced PWM3 capture input / positive pulse output (PWM3P). |+| 4 | P1.5/SCLK/SCL/PWM3N | bidirectional | General-purpose I/O P1.5. Alternate functions: SPI clock (SCLK), I2C clock line (SCL), advanced PWM3 negative pulse output (PWM3N). |+| 5 | P1.6/RxD_3/PWM4P/MCLKO_2/XTALO | bidirectional | General-purpose I/O P1.6. Alternate functions: UART1 receive (RxD_3 alternate mapping), advanced PWM4 capture/positive pulse output (PWM4P), master clock divide output (MCLKO_2), external crystal output (XTALO). |+| 6 | P1.7/TxD_3/PWM4N/PWM5_2/XTALI | bidirectional | General-purpose I/O P1.7. Alternate functions: UART1 transmit (TxD_3 alternate mapping), PWM4 negative pulse output (PWM4N), PWM5 alternate mapping (PWM5_2), external crystal/clock input (XTALI). |+| 7 | P5.4/nRST/MCLKO/PWM6_2 | bidirectional | General-purpose I/O P5.4 doubling as active-low reset input (nRST). Also usable as master clock divide output (MCLKO) or PWM6 alternate mapping (PWM6_2). Factory default is I/O mode; enable nRST via ISP. |+| 8 | VCC/AVCC | power_in | Main supply and analog supply, tied internally. Operating range 1.9-5.5 V. Bypass with 10 µF bulk plus 0.1 µF decoupling to GND near the pin. |+| 9 | ADC_VRef+ | input | ADC positive reference input. Must be driven from an external reference (2.4 V to VCC); may be tied directly to VCC when high accuracy is not required. Floating causes leakage current. |+| 10 | GND/AGND | power_in | Ground return for both the digital core and the analog / ADC block, tied internally. |+| 11 | P3.0/ADC8/RxD/INT4 | bidirectional | General-purpose I/O P3.0. Alternate functions: ADC channel 8, UART1 receive (RxD, default mapping), external interrupt 4 (INT4). Powers up as weak pull-up (quasi-bidirectional). |+| 12 | P3.1/ADC9/TxD | bidirectional | General-purpose I/O P3.1. Alternate functions: ADC channel 9, UART1 transmit (TxD, default mapping). Powers up as weak pull-up (quasi-bidirectional). |+| 13 | P3.2/ADC10/INT0/SCLK_4/SCL_4/PWMETI/PWMETI2 | bidirectional | General-purpose I/O P3.2. Alternate functions: ADC channel 10, external interrupt 0 (INT0), SPI clock alternate mapping 4 (SCLK_4), I2C clock alternate mapping 4 (SCL_4), advanced PWM external trigger inputs (PWMETI, PWMETI2). |+| 14 | P3.3/ADC11/INT1/MISO_4/SDA_4/PWM4N_4/PWM7_2 | bidirectional | General-purpose I/O P3.3. Alternate functions: ADC channel 11, external interrupt 1 (INT1), SPI MISO alternate mapping 4, I2C SDA alternate mapping 4, PWM4 negative output alternate mapping, PWM7 alternate mapping. |+| 15 | P3.4/ADC12/T0/T1CLKO/MOSI_4/PWM4P_4/PWM8_2/CMPO | bidirectional | General-purpose I/O P3.4. Alternate functions: ADC channel 12, Timer 0 external clock input (T0), Timer 1 clock divide output (T1CLKO), SPI MOSI alt-map 4, PWM4/PWM8 alt-map outputs, analog comparator output (CMPO). |+| 16 | P3.5/ADC13/T1/T0CLKO/SS_4/PWMFLT/PWMFLT2 | bidirectional | General-purpose I/O P3.5. Alternate functions: ADC channel 13, Timer 1 external clock input (T1), Timer 0 clock divide output (T0CLKO), SPI slave select alt-map 4 (SS_4), PWMA/PWMB external fault detect inputs (PWMFLT, PWMFLT2). |+| 17 | P3.6/ADC14/INT2/RxD_2/CMP- | bidirectional | General-purpose I/O P3.6. Alternate functions: ADC channel 14, external interrupt 2 (INT2), UART1 receive alt-map 2 (RxD_2), analog comparator negative input (CMP-). |+| 18 | P3.7/INT3/TxD_2/CMP+ | bidirectional | General-purpose I/O P3.7. Alternate functions: external interrupt 3 (INT3), UART1 transmit alt-map 2 (TxD_2), analog comparator positive input (CMP+). |+| 19 | P1.0/ADC0/RxD2/PWM1P | bidirectional | General-purpose I/O P1.0. Alternate functions: ADC channel 0, UART2 receive (RxD2), advanced PWM1 capture/positive pulse output (PWM1P). |+| 20 | P1.1/ADC1/TxD2/PWM1N | bidirectional | General-purpose I/O P1.1. Alternate functions: ADC channel 1, UART2 transmit (TxD2), advanced PWM1 negative pulse output (PWM1N). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STC Micro |+| Package | TSSOP-20 |+| Category | MCU |+| Pins | 20 |++## Ordering variants++- `STC8H1K08-36I-TSSOP20`+- `STC8H1K08-36I-TSSOP20STC8H1K08-36I-QFN20`+- `STC8H1K08-36I-TSSOP20STC8H1K08-36I-SOP20`+- `STC8H1K08-36I-TSSOP20STC8H1K08-36I-SOP16`++## CAD (KiCad official)++- Symbol: `STC8H1K08-36I-TSSOP20`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STC Micro datasheet](docs/stc8h1k08-36i-tssop20-datasheet.pdf) (2180 pp, sha256 `046aea020e4685f3`, 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/stc8h1k08-36i-tssop20-datasheet.pdf)

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