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CW32L031F8P6

Public Made by Adom

by adom

CW Microcontroller Units (MCUs/MPUs/SOCs), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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CW32L031F8P6

CW · Microcontroller Units (MCUs/MPUs/SOCs) · TSSOP-20

CW32L031F8P6 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 Vcore power_out Core-logic supply node listed for the TSSOP20 package; the datasheet gives no voltage or current limit for this pin.
2 PF00 bidirectional TC-type I/O that also serves as the OSC_IN oscillator input; its high-level input threshold is 0.7×VDDIOx minimum.
3 PF01 bidirectional TC-type I/O that also serves as the OSC_OUT oscillator output, with LSE_OUT as an alternate function.
4 NRST input Chip reset input with internal pull-up of 7 to 9 kΩ; the minimum reset pulse width is 20 µs.
5 VDDA power_in Analog supply for the ADC, reset circuit and RC oscillators, rated 1.65 V to 5.5 V, and must be greater than or equal to VDD.
6 PA00 bidirectional TTa I/O with analog inputs ADC_IN0, VC1_CH0 and LVD_CH1.
7 PA01 bidirectional TTa I/O with analog inputs ADC_IN1 and VC1_CH1.
8 PA02 bidirectional TTa I/O with analog inputs ADC_IN2 and VC1_CH2.
9 PA03 bidirectional TTa I/O with analog inputs ADC_IN3 and VC1_CH3.
10 PA04 bidirectional TTa I/O with analog inputs ADC_IN4 and VC1_CH4.
11 PA05 bidirectional TTa I/O with analog inputs ADC_IN5, VC1_CH5 and VC2_CH0.
12 PA06 bidirectional TTa I/O with analog inputs ADC_IN6, VC1_CH6 and VC2_CH1.
13 PA07 bidirectional TTa I/O with analog inputs ADC_IN7, VC1_CH7 and VC2_CH2.
14 PB01 bidirectional TTa I/O with analog inputs ADC_IN9 and VC2_CH4.
15 VSS power_in Ground reference for the device (Ground).
16 VDD power_in I/O and internal regulator supply, rated 1.65 V to 5.5 V; all VDD pins must be powered at the same voltage.
17 PA10 bidirectional TC standard I/O with alternate functions including I2C_SDA, SPI_SCK and UART1_CTS.
18 PA13/SWDIO bidirectional TC I/O that is configured as SWDIO after reset with its internal pull-up enabled; alternates include I2C_SDA, UART1_RXD and IR_OUT.
19 PA14/SWCLK bidirectional TC I/O that is configured as SWCLK after reset with its internal pull-up enabled; alternates include UART3_TXD and I2C_SCL.
20 PF03/BOOT input Boot pin sampled at startup to select between the internal Bootloader and the user program.

Key specifications

Parameter Value
Manufacturer CW
Package TSSOP-20
Category Single Chip Microcomputer/Microcontroller
Pins 20

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
外供主电源电压 VDD - VSS -0.3 6 V 35
外供模拟电源电压 VDDA-VSS -0.3 6 V 35
VDD 大于 VDDA 时允许的最大差值 VDD-VDDA 0.3 V 35
全部 VDD 供电线的灌电流总和（流入） ΣIVDD 120 mA 35
全部 VSS 供电线的拉电流总和（流出） ΣIVSS -120 mA 35
单个 I/O 或控制引脚灌入的电流 IIO(PIN) 25 mA 35
单个 I/O 或控制引脚输出的电流 IIO(PIN) -25 mA 35
全部 I/O 或控制引脚注入的电流总和 ΣIINJ(PIN) -25 25 mA 35
储存温度范围 TSTG -65 150 ℃ 36
最大结温 TJ 105 ℃ 36
内部 AHB 总线频率 fHCLK 0 48 MHz VDD ≥ 1.8V 37
内部 APB 总线频率 fPCLK 0 48 MHz VDD ≥ 1.8V 37
内部 AHB 总线频率 fHCLK 0 24 MHz 1.65V ≤ VDD ＜ 1.8V 37
内部 APB 总线频率 fPCLK 0 24 MHz 1.65V ≤ VDD ＜ 1.8V 37
标准工作电压 VDD 1.65 5.5 V 37
模拟工作电压 VDDA 1.65 5.5 V 须等于 VDD 37
环境温度（温度标号 6，最大功率耗散） TA -40 85 ℃ 温度标号 6：TA=85℃ 最大功率耗散 37
环境温度（低功率耗散） TA -40 105 ℃ 低功率耗散，温度标号 6 37
结温范围 TJ -40 105 ℃ 温度标号 6 37
上电/掉电复位门限 下降沿 VPOR/BOR 1.451 1.5 1.552 V 下降沿 38
上电/掉电复位门限 上升沿 VPOR/BOR 1.502 1.55 1.6 V 上升沿 38
复位持续时间 tRSTTEMPO 4 6.5 13 ms 38
内部 1.5V 参考电压 VREFINT1V5 1.485 1.5 1.515 V -40℃ < TA < +85℃ 38
内部 2.5V 参考电压 VREFINT2V5 2.475 2.5 2.525 V -40℃ < TA < +85℃ 38
全温度范围内的内部参考电压分布 ΔVREFINT 101 mV VDDA = 3V 38
温度系数 TCoeff -601 601 ppm/℃ 38
运行模式供电电流（代码自 FLASH 中运行，全部外设打开，48MHz） IDD 7.2 8.2 mA VDD = VDDA = 5.5V，TA = 85℃，HSI 或 HSE 时钟 39
运行模式供电电流（代码自 FLASH 中运行，全部外设关闭，48MHz） IDD 4.6 5.2 mA VDD = VDDA = 5.5V，TA = 85℃，HSI 或 HSE 时钟 39
运行模式供电电流（代码自 FLASH 中运行，全部外设打开，24MHz） IDD 5 5.7 mA VDD = VDDA = 5.5V，TA = 85℃，HSI 或 HSE 时钟 39
运行模式供电电流（代码自 FLASH 中运行，全部外设关闭，24MHz） IDD 3.7 4.2 mA VDD = VDDA = 5.5V，TA = 85℃，HSI 或 HSE 时钟 39
DeepSleep 模式供电电流（稳压器运行，全部振荡器关闭） IDD 0.45 3.84 μA VDD = VDDA = 3.6V，TA = 85℃ 40
DeepSleep 模式供电电流（稳压器运行，LSI 和 IWDT 打开） IDD 1.11 4.65 μA VDD = VDDA = 3.6V，TA = 85℃ 40
从 Sleep 模式唤醒 tWUSLEEP 4 4 HCLK 42
从 DeepSleep 模式唤醒（稳压器处于运行模式） tWUDEEP 4 5 μs 稳压器处于运行模式 42
用户外部时钟源频率 fHSE_EXT 1 32 MHz 43
OSC_IN 输入高电平时间 tW(HSEH) 15 ns 43
用户外部时钟源频率 fLSE_EXT 32.768 1000 kHz 44
OSC32_IN 输入高电平时间 tW(LSEH) 450 ns 44
振荡器频率 fOSC_IN 4 8 32 MHz 45
HSE 电流消耗（启动） IDD 900 μA 启动 45
HSI 占空比 DutyHSI 45 55 % 46
HSI 工厂校准精度 ACCHSI -2 2 % TA = -40℃ ~ +85℃ 46
HSI 工厂校准精度 ACCHSI -0.5 0.5 % TA = +25℃ 46
LSI 工厂校准精度 ACCLSI -3 3 % TA = -40℃ ~ +85℃ 46
RC10K 出厂精度 ACCRC10K -50 50 % TA = -40℃ ~ +85℃ 46
RC150K 出厂精度 ACCRC150K -50 50 % TA = -40℃ ~ +85℃ 47
编程电压 Vprog 1.65 5.5 V 47
寿命 NNED 20000 次 TA = -40℃ ~ +85℃ 47
静电放电电压（人体模型） VESD(HBM) 8 kV TA = +25℃，符合 JESD22-A115C 48
弱上拉等效电阻 RPU 45 75 220 kΩ VIN = VSS 48
高电平输出电压（源电流） VOH 3.02 V Sourcing 10mA, VDD = 3.3V 49
低电平输出电压（灌电流） VOL 0.23 V Sinking 10mA, VDD = 3.3V 49
高电平输出电压（源电流） VOH 2.7 V Sourcing 20mA, VDD = 3.3V 49
低电平输出电压（灌电流） VOL 0.45 V Sinking 20mA, VDD = 3.3V 49
弱上拉等效电阻（NRST） RPU 7 8 9 kΩ VIN = VSS 51
ADC 开启时的供电电压 VDDA 1.65 5.5 V 52
总转换时间（含采样保持） tCONV 24 29 1/fADC 52
平均斜率 Avg_Slope 2.66 2.69 2.72 mV/℃ 54
TS 内置温度传感器跟随器建立时间 tSTART 45 μs 54

CAD (KiCad official)

  • Symbol: CW32L031F8P6
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: cw32l031f8p6-etched.step / cw32l031f8p6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cw32l031f8p6.step / cw32l031f8p6.glb are the bare package body.

Provenance

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

  • Datasheet: CW datasheet (74 pp, sha256 0e51efc1f45a11c9, retrieved 2026-10-27, 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