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CW32F003F4P7

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CW Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CW32F003F4P7

CW · Microcontrollers (MCU/MPU/SOC) · TSSOP-20

CW32F003F4P7 from CW, in a TSSOP-20. 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 PC00 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART2_RXD, UART1_TXD, SPI_SCK, ATIM_CH1A, GTIM_CH2, BTIM1_TOGP, HCLK_OUT, and analog functions ADC_AIN5 and VC2_CH6.
2 PC01 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART2_TXD, GTIM_ETR, SPI_MISO, ATIM_CH2A, GTIM_CH3, BTIM1_TOGN, VC1_OUT, and analog functions ADC_AIN6 and VC2_CH7.
3 PC02 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART2_RXD, IR_OUT, SPI_MOSI, ATIM_CH3A, GTIM_CH4, HCLK_OUT, AWT_ETR, and analog functions ADC_AIN7 and VC1_CH0.
4 NRST input Chip reset input (RST type); a permanent internal pull-up is fitted to this pin, see section 7.3.12 for thresholds and minimum reset pulse width.
5 PB00 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_RXD, I2C_SDA, SPI_CS, ATIM_CH1B, GTIM_CH1, GTIM_TOGP, AWT_ETR, and analog functions ADC_AIN8, VC1_CH1, and HEX_PB00; it can also receive an external HEX clock input (1-32 MHz).
6 PB01 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_TXD, LVD_OUT, I2C_SCL, ATIM_BK, GTIM_CH2, GTIM_TOGN, AWT_ETR, and analog functions ADC_AIN9, VC1_CH2, and HEX_PB01; it can also receive an external HEX clock input (1-32 MHz).
7 VSS power_in Ground reference for the device; all voltages are specified relative to VSS.
8 PA02/SWDIO bidirectional General-purpose I/O (TC standard type) that is configured as the SWD data line SWDIO after reset with the internal pull-up enabled; alternate functions include UART1_RXD, UART2_TXD, I2C_SDA, GTIM_ETR, GTIM_CH3, VC2_OUT, and AWT_ETR.
9 VDD power_in Power supply for digital and analog circuits; the datasheet gives a standard operating range of 1.65 V to 5.5 V and requires all VDD pins to be supplied at the same voltage.
10 PB06 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_TXD, I2C_SCL, SPI_CS, ATIM_CH1A, GTIM_TOGP, BTIM2_TOGP, HCLK_OUT, and analog functions ADC_AIN10 and LVD_CH1.
11 PB05 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_RXD, I2C_SDA, BTIM_ETR, ATIM_CH1B, GTIM_TOGN, BTIM2_TOGN, ATIM_BK, and analog functions ADC_AIN11 and VC1_CH3.
12 PB04 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART2_TXD, I2C_SCL, GTIM_ETR, ATIM_ETR, GTIM_CH1, BTIM3_TOGN, ATIM_BK, and analog functions ExRef and VC1_CH4.
13 PB03 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART2_RXD, I2C_SDA, PCLK_OUT, ATIM_CH2A, GTIM_CH2, BTIM3_TOGP, IR_OUT, and analog functions ADC_AIN12, VC1_CH5, and LVD_CH2.
14 PB02 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_TXD, UART2_CTS, SPI_CS, ATIM_CH2B, GTIM_CH3, BTIM1_TOGP, MCO_OUT, and analog functions ADC_AIN0, VC1_CH6, and VC2_CH0.
15 PA00 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_RXD, UART2_RTS, SPI_SCK, ATIM_CH3A, GTIM_CH4, BTIM1_TOGN, VC1_OUT, and analog functions VC1_CH7, VC2_CH1, and LVD_CH3.
16 PA01 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART2_TXD, VC2_OUT, SPI_MOSI, ATIM_CH3B, GTIM_CH1, BTIM2_TOGP, MCO_OUT, and analog functions ADC_AIN1 and VC2_CH2.
17 PA04 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_RXD, IR_OUT, SPI_MISO, ATIM_CH3B, GTIM_CH2, BTIM2_TOGN, GTIM_ETR, and analog functions ADC_AIN2 and VC2_CH3; the datasheet lists this pin among the special-drive pins with separate output voltage limits for TSSOP20.
18 PA05/SWCLK bidirectional General-purpose I/O (TTa) that is configured as the SWD clock SWCLK after reset with the internal pull-up enabled; alternate functions include UART1_TXD, UART2_RXD, I2C_SCL, GTIM_CH4, BTIM_ETR, and MCO_OUT.
19 PA06 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_CTS, UART2_TXD, I2C_SDA, ATIM_CH2B, GTIM_CH3, BTIM3_TOGP, LVD_OUT, and analog functions ADC_AIN3 and VC2_CH4.
20 PA07 bidirectional General-purpose I/O (TTa, analog-capable) with digital alternate functions UART1_RTS, UART2_RXD, VC1_OUT, ATIM_CH1B, GTIM_CH4, BTIM3_TOGN, ATIM_BK, and analog functions ADC_AIN4 and VC2_CH5.

Key specifications

Parameter Value
Manufacturer CW
Package TSSOP-20
Category Embedded Processors & Controllers
Pins 20

CAD (KiCad official)

  • Symbol: CW32F003F4P7
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: cw32f003f4p7-etched.step / cw32f003f4p7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cw32f003f4p7.step / cw32f003f4p7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: CW datasheet (58 pp, sha256 d9a466f1abc5af59, retrieved 2026-10-09, 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF