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STC8C2K32S2-36I-LQFP32
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STC Micro Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout cross-checked by two models against the datasheet, 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
markdownSTC8C2K32S2-36I-LQFP32
STC Micro · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)
STC8C2K32S2-36I-LQFP32 from STC Micro, in a LQFP-32(7x7). 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 | P1.0 | bidirectional | Standard bidirectional I/O port P1.0 that can also serve as the UART2 receive pin RxD2; port modes are quasi-bidirectional, push-pull, high-impedance input and open-drain, and all I/O is high-impedance input after power-up except P3.0 and P3.1. |
| 2 | P1.1 | bidirectional | Standard bidirectional I/O port P1.1 that can also serve as the UART2 transmit pin TxD2 (output). |
| 3 | P1.2 | bidirectional | Standard bidirectional I/O port P1.2 that can also serve as the SPI slave select input SS (master output) or the Timer 2 external clock input T2. |
| 4 | P1.3 | bidirectional | Standard bidirectional I/O port P1.3 that can also serve as the SPI MOSI data line or the Timer 2 clock divided output T2CLKO. |
| 5 | P1.4 | bidirectional | Standard bidirectional I/O port P1.4 that can also serve as the SPI MISO data line or the I2C data line SDA. |
| 6 | P1.5 | bidirectional | Standard bidirectional I/O port P1.5 that can also serve as the SPI clock SCLK or the I2C clock line SCL. |
| 7 | P1.6 | bidirectional | Standard bidirectional I/O port P1.6 that can also serve as the UART1 receive pin RxD_3, the external crystal output XTALO, or the main clock divided output MCLKO_2. |
| 8 | P1.7 | bidirectional | Standard bidirectional I/O port P1.7 that can also serve as the UART1 transmit pin TxD_3 or the external crystal/external clock input XTALI. |
| 9 | P5.4 | bidirectional | Standard I/O port P5.4 that can be configured as the active-low reset input RST (P54RST) or as the main clock divided output MCLKO; its internal 4K pull-up stays on when used as RST. |
| 10 | Vcc | power_in | Power supply pin; the datasheet specifies an operating voltage of 1.9V to 5.5V. |
| 11 | P5.5 | bidirectional | Standard bidirectional I/O port P5.5. |
| 12 | Gnd | power_in | Ground pin. |
| 13 | P3.0 | bidirectional | Standard I/O port P3.0 that is quasi-bidirectional with weak pull-up after power-up, and can also serve as UART1 receive RxD or external interrupt INT4; it is also one of the ISP/USB download-mode strap pins (P3.0/P3.1/P3.2 must not all be low at power-on if USB download is not used). |
| 14 | P3.1 | bidirectional | Standard I/O port P3.1 that is quasi-bidirectional with weak pull-up after power-up, and can also serve as UART1 transmit pin TxD (output); it is also one of the ISP/USB download-mode strap pins. |
| 15 | P3.2 | bidirectional | Standard I/O port P3.2 that can also serve as external interrupt INT0, the SPI clock SCLK_4 or the I2C clock I2CSCL_4; it is the ISP download-mode strap pin. |
| 16 | P3.3 | bidirectional | Standard I/O port P3.3 that can also serve as external interrupt INT1, the SPI MISO_4 line or the I2C data line I2CSDA_4. |
| 17 | P3.4 | bidirectional | Standard I/O port P3.4 that can also serve as Timer 0 external clock T0, Timer 1 clock output T1CLKO, SPI MOSI_4 or comparator output CMPO. |
| 18 | P3.5 | bidirectional | Standard I/O port P3.5 that can also serve as Timer 1 external clock T1, Timer 0 clock output T0CLKO or SPI slave select SS_4. |
| 19 | P3.6 | bidirectional | Standard I/O port P3.6 that can also serve as external interrupt INT2 (falling edge only), the UART1 receive pin RxD_2 or the comparator negative input CMP-. |
| 20 | P3.7 | bidirectional | Standard I/O port P3.7 that can also serve as external interrupt INT3 (falling edge only), the UART1 transmit pin TxD_2 or the comparator positive input CMP+. |
| 21 | P2.0 | bidirectional | Standard bidirectional I/O port P2.0. |
| 22 | P2.1 | bidirectional | Standard bidirectional I/O port P2.1. |
| 23 | P2.2 | bidirectional | Standard bidirectional I/O port P2.2 that can also serve as the SPI slave select SS_2 (second SPI pin group). |
| 24 | P2.3 | bidirectional | Standard bidirectional I/O port P2.3 that can also serve as the SPI MOSI_2 data line (second SPI pin group). |
| 25 | P2.4 | bidirectional | Standard bidirectional I/O port P2.4 that can also serve as the SPI MISO_2 line or the I2C data line I2CSDA_2. |
| 26 | P2.5 | bidirectional | Standard bidirectional I/O port P2.5 that can also serve as the SPI clock SCLK_2 or the I2C clock line I2CSCL_2. |
| 27 | P2.6 | bidirectional | Standard bidirectional I/O port P2.6. |
| 28 | P2.7 | bidirectional | Standard bidirectional I/O port P2.7. |
| 29 | P0.0 | bidirectional | Standard bidirectional I/O port P0.0 that can also serve as the UART3 receive pin RxD3. |
| 30 | P0.1 | bidirectional | Standard bidirectional I/O port P0.1 that can also serve as the UART3 transmit pin TxD3 (output). |
| 31 | P0.2 | bidirectional | Standard bidirectional I/O port P0.2 that can also serve as the UART4 receive pin RxD4. |
| 32 | P0.3 | bidirectional | Standard bidirectional I/O port P0.3 that can also serve as the UART4 transmit pin TxD4 (output). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STC Micro |
| Package | LQFP-32(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 32 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 存储温度 | -55 | 150 | ℃ | 786 | |||
| 工作温度 | -40 | 85 | ℃ | 786 | |||
| 工作电压 | 1.9 | 5.5 | V | 786 | |||
| VDD 对地电压 | VDD | -0.3 | 5.5 | V | 786 | ||
| I/O 口对地电压 | -0.3 | V | 786 | ||||
| 输入低电平（普通 I/O） | VIL1 | 0.99 | V | 打开施密特触发 | 787 | ||
| 输入低电平（普通 I/O） | VIL1 | 1.07 | V | 关闭施密特触发 | 787 | ||
| 输入高电平（普通 I/O） | VIH1 | 1.18 | V | 打开施密特触发 | 787 | ||
| 输入高电平（普通 I/O） | VIH1 | 1.09 | V | 关闭施密特触发 | 787 | ||
| 输入高电平（复位脚） | VIH2 | 1.18 | 0.99 | V | 787 | ||
| 逻辑 0 输入电流 | IIL | 50 | uA | 端口电压 0V | 787 | ||
| 逻辑 1 到 0 的转移电流 | ITL | 100 | 270 | 600 | uA | 端口电压 2.0V | 787 |
| I/O 口上拉电阻 | RPU | 5.8 | 5.9 | 6 | KΩ | 787 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | PC | Accumulator contents and the contents of a sixteen-bit base register, which may be either the Data Pointer or the PC. In the latter case, the PC is incremented to the address of the following | 419 |
CAD (KiCad official)
- Symbol:
STC8C2K32S2-36I-LQFP32 - Footprint:
Package_QFP:LQFP-32_7x7mm_P0.8mm - 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)
- 3D model files:
stc8c2k32s2-36i-lqfp32-etched.step/stc8c2k32s2-36i-lqfp32-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stc8c2k32s2-36i-lqfp32.step/stc8c2k32s2-36i-lqfp32.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STC Micro datasheet (956 pp, sha256
f8fa5bab02998432, retrieved 2026-10-20, 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: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).