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STC8H1K24-36I-QFN32
Public Unreviewedby Ray
STC Micro Microcontrollers (MCU/MPU/SOC), QFN-32-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownSTC8H1K24-36I-QFN32
STC Micro · Microcontrollers (MCU/MPU/SOC) · QFN-32-EP(4x4)
STC8H1K24-36I-QFN32 from STC Micro, in a QFN-32-EP(4x4). 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 | P1.0/RxD2/ADC0/PWM1P | bidirectional | Standard I/O P1.0. Alternate functions: UART2 RxD input, ADC channel 0, PWM1P capture input / positive PWM output. |
| 2 | P1.1/TxD2/ADC1/PWM1N | bidirectional | Standard I/O P1.1. Alternate functions: UART2 TxD output, ADC channel 1, PWM1N negative PWM output. |
| 3 | P1.2/SS/T2/PWM2P/ADC2 | bidirectional | Standard I/O P1.2. Alternate functions: SPI slave-select, Timer 2 external clock input, PWM2P capture/positive output, ADC channel 2. |
| 4 | P1.3/MOSI/T2CLKO/PWM2N/ADC3 | bidirectional | Standard I/O P1.3. Alternate functions: SPI MOSI, Timer 2 clock divider output, PWM2N negative output, ADC channel 3. |
| 5 | P1.4/MISO/SDA/PWM3P/ADC4 | bidirectional | Standard I/O P1.4. Alternate functions: SPI MISO, I2C SDA data line, PWM3P capture/positive output, ADC channel 4. |
| 6 | P1.5/SCLK/SCL/PWM3N/ADC5 | bidirectional | Standard I/O P1.5. Alternate functions: SPI clock, I2C SCL clock line, PWM3N negative output, ADC channel 5. |
| 7 | P1.6/XTALO/MCLKO_2/RxD_3/PWM4P/ADC6 | bidirectional | Standard I/O P1.6. Alternate functions: external crystal output (XTALO), master clock divider output MCLKO_2, UART1 RxD (mapping 3), PWM4P capture/positive output, ADC channel 6. |
| 8 | P1.7/XTALI/TxD_3/PWM4N/PWM5_2/ADC7 | bidirectional | Standard I/O P1.7. Alternate functions: external crystal / clock input XTALI, UART1 TxD (mapping 3), PWM4N and PWM5_2 outputs, ADC channel 7. |
| 9 | P5.4/nRST/MCLKO/PWM6_2 | bidirectional | P5.4 standard I/O, configurable as low-active reset (nRST) by ISP option. Also master clock divider output MCLKO and PWM6_2 capture/output. |
| 10 | Vcc/AVcc | power_in | Digital and analog supply pin. Operating range 1.9V-5.5V. Combined Vcc and AVcc rail. |
| 11 | ADC_VRef+ | input | External ADC positive reference input. Must be tied to a reference between 2.4V and Vcc; do not leave floating (leakage). May be tied to Vcc when low precision suffices. |
| 12 | Gnd/AGnd | power_in | Combined digital and analog ground reference. |
| 13 | P3.0/RxD/INT4 | bidirectional | Standard I/O P3.0. Alternate functions: UART1 primary RxD, external interrupt INT4. Weak pull-up quasi-bidirectional at power-up. |
| 14 | P3.1/TxD | bidirectional | Standard I/O P3.1. Alternate function: UART1 primary TxD output. Weak pull-up quasi-bidirectional at power-up. |
| 15 | P3.2/INT0/SCLK_4/SCL_4/PWMETI/PWMETI2 | bidirectional | Standard I/O P3.2. Alternate functions: external interrupt INT0, SPI clock (mapping 4), I2C SCL (mapping 4), PWM external trigger inputs PWMETI and PWMETI2. |
| 16 | P3.3/INT1/MISO_4/SDA_4/PWM4N_4/PWM7_2 | bidirectional | Standard I/O P3.3. Alternate functions: external interrupt INT1, SPI MISO (mapping 4), I2C SDA (mapping 4), PWM4N (mapping 4) and PWM7 capture/output. |
| 17 | P3.4/T0/T1CLKO/MOSI_4/PWM4P_4/PWM8_2/CMPO | bidirectional | Standard I/O P3.4. Alternate functions: Timer 0 external clock in, Timer 1 clock divider out, SPI MOSI (mapping 4), PWM4P/PWM8 capture/output, comparator output CMPO. |
| 18 | P3.5/T1/T0CLKO/SS_4/PWMFLT/PWMFLT2 | bidirectional | Standard I/O P3.5. Alternate functions: Timer 1 external clock in, Timer 0 clock divider out, SPI slave-select (mapping 4), PWMA/PWMB external fault detect inputs PWMFLT/PWMFLT2. |
| 19 | P3.6/INT2/RxD_2/CMP- | bidirectional | Standard I/O P3.6. Alternate functions: external interrupt INT2, UART1 RxD (mapping 2), analog comparator negative input CMP-. |
| 20 | P3.7/INT3/TxD_2/CMP+ | bidirectional | Standard I/O P3.7. Alternate functions: external interrupt INT3, UART1 TxD (mapping 2), analog comparator positive input CMP+. |
| 21 | P2.0/PWM1P_2/PWM5 | bidirectional | Standard I/O P2.0. Alternate functions: PWM1P (mapping 2) and PWM5 capture inputs / positive PWM outputs. |
| 22 | P2.1/PWM1N_2/PWM6 | bidirectional | Standard I/O P2.1. Alternate functions: PWM1N (mapping 2) negative output, PWM6 capture/positive output. |
| 23 | P2.2/PWM2P_2/PWM7/SS_2 | bidirectional | Standard I/O P2.2. Alternate functions: PWM2P (mapping 2), PWM7 capture/output, SPI slave-select (mapping 2). |
| 24 | P2.3/PWM2N_2/PWM8/MOSI_2 | bidirectional | Standard I/O P2.3. Alternate functions: PWM2N (mapping 2) negative output, PWM8 capture/output, SPI MOSI (mapping 2). |
| 25 | P2.4/PWM3P_2/MISO_2/SDA_2 | bidirectional | Standard I/O P2.4. Alternate functions: PWM3P (mapping 2), SPI MISO (mapping 2), I2C SDA (mapping 2). |
| 26 | P2.5/PWM3N_2/SCLK_2/SCL_2 | bidirectional | Standard I/O P2.5. Alternate functions: PWM3N (mapping 2) negative output, SPI clock (mapping 2), I2C SCL (mapping 2). |
| 27 | P2.6/PWM4P_2 | bidirectional | Standard I/O P2.6. Alternate function: PWM4P (mapping 2) capture input / positive PWM output. |
| 28 | P2.7/PWM4N_2 | bidirectional | Standard I/O P2.7. Alternate function: PWM4N (mapping 2) negative PWM output. |
| 29 | P0.0/ADC8/T3/PWM5_3 | bidirectional | Standard I/O P0.0. Alternate functions: ADC channel 8, Timer 3 external clock input, PWM5 (mapping 3) capture/output. |
| 30 | P0.1/ADC9/T3CLKO/PWM6_3 | bidirectional | Standard I/O P0.1. Alternate functions: ADC channel 9, Timer 3 clock divider output, PWM6 (mapping 3) capture/output. |
| 31 | P0.2/ADC10/T4/PWM7_3 | bidirectional | Standard I/O P0.2. Alternate functions: ADC channel 10, Timer 4 external clock input, PWM7 (mapping 3) capture/output. |
| 32 | P0.3/ADC11/T4CLKO/PWM8_3 | bidirectional | Standard I/O P0.3. Alternate functions: ADC channel 11, Timer 4 clock divider output, PWM8 (mapping 3) capture/output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STC Micro |
| Package | QFN-32-EP(4x4) |
| Category | MCU |
| Pins | 32 |
Ordering variants
Same part, different packaging or reel option.
STC8H1K24-36I-QFN32STC8H1K28-36I-QFN32STC8H1K28-36I-LQFP32STC8H1K28-36I-TSSOP28STC8H1K28-36I-SOP28STC8H1K28-36I-TSSOP20
CAD (KiCad official)
- Symbol:
STC8H1K24-36I-QFN32 - Footprint:
Package_DFN_QFN:QFN-32-1EP_4x4mm_P0.4mm_EP2.9x2.9mm - 3D model: QFN-32-EP(4x4) (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
stc8h1k24-36i-qfn32.step |
76 KB | You want the bare part, or you mark your own boards. |
stc8h1k24-36i-qfn32-etched.step |
2.9 MB | You want the part with STC8H1K24-36I-QFN32 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 710 faces against 72 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: STC Micro datasheet (2180 pp, sha256
046aea020e4685f3, retrieved 2026-08-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).