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FU6811L

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Fortior Tech Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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FU6811L

Fortior Tech · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)

FU6811L from Fortior Tech, in a LQFP-48(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 P2.2/C2M/A2M bidirectional GPIO P2.2 with configurable INT1 external interrupt input and 4.7 kΩ pull-up; also the differential Hall2/BEMF2 negative input and the AMP2 negative input.
2 P2.3/AD1/A2O bidirectional GPIO P2.3 with configurable INT1 input; also ADC channel 1 input for the amplified phase-current-2 signal and the AMP2 output.
3 P2.4/AD2 bidirectional GPIO P2.4 with configurable INT1 input; also ADC channel 2 input for the bus-voltage signal.
4 P2.5/AD3 bidirectional GPIO P2.5 with configurable INT1 input; also ADC channel 3 input.
5 P2.6/C3M bidirectional GPIO P2.6 with configurable INT1 input; also the overcurrent reference signal input and the CMP3 negative input.
6 P2.7/AD4/C3P/A0O bidirectional GPIO P2.7 with configurable INT1 input; also ADC channel 4 input for the amplified bus-current signal, the CMP3 positive input for overcurrent detection, and the AMP0 output.
7 P3.0/A0M bidirectional GPIO P3.0; also the AMP0 negative input used to amplify the bus-current signal.
8 P3.1/A0P bidirectional GPIO P3.1; also the AMP0 positive input used to amplify the bus-current signal.
9 P3.2/AD5/TIM0/VHALF bidirectional GPIO P3.2; also overtemperature signal input, ADC channel 5 input, advanced timer channel 4 output, and a 1/2 VDD5 or 1/2 VREF reference output that needs an external 1 µF capacitor.
10 P3.3/AD6/RXD2/IR_RXD2 bidirectional GPIO P3.3; also ADC channel 6 input, UART2 receive data (after function transfer), and infrared receive data (after function transfer).
11 P3.4/AD7/TXD2/IR_TXD2 bidirectional GPIO P3.4; also analog speed-control input on ADC channel 7, UART2 transmit data (after function transfer), and infrared transmit data (after function transfer).
12 P3.5/VREF bidirectional GPIO P3.5; also the ADC external reference voltage input or internal VREF output, which needs an external 1 µF capacitor.
13 AVSS power_in Analog ground.
14 AVDD5 power_in Analog supply input, connected externally to VDD5 with a 1 µF capacitor to AVSS.
15 P3.6/XIN/ECLK bidirectional GPIO P3.6; also the fast-clock crystal input for a 24 MHz crystal and the external fast-clock input.
16 P3.7/XOUT bidirectional GPIO P3.7; also the fast-clock crystal output for a 24 MHz crystal.
17 P0.0/SDA bidirectional GPIO P0.0 with configurable INT0 external interrupt input; also I2C SDA, open-drain output with configurable 4.7 kΩ pull-up.
18 P0.1/SCL/TIM4 bidirectional GPIO P0.1; also I2C SCL clock, open-drain output with configurable 4.7 kΩ pull-up, and Timer4 input or output.
19 P0.2/LXIN bidirectional GPIO P0.2; also the 32768 Hz crystal input.
20 P0.3/LXOUT bidirectional GPIO P0.3; also the 32768 Hz crystal output.
21 P0.4/NSS bidirectional GPIO P0.4; also the SPI slave select port.
22 P0.5/MOSI/TXD/IR_TXD bidirectional GPIO P0.5; also SPI_MOSI (master output or slave input), UART1 transmit data (before function transfer), and infrared transmit data (before function transfer).
23 P0.6/MISO/RXD/IR_RXD bidirectional GPIO P0.6; also SPI_MISO (master input or slave output), UART1 receive data (before function transfer), and infrared receive data (before function transfer).
24 P0.7/SCLK/TIM5/CXO bidirectional GPIO P0.7; also SPI clock, Timer5 capture input or PWM output, and the comparator output test pin.
25 P1.0/TIM2 bidirectional GPIO P1.0 with configurable INT1 external interrupt input; also Timer2 capture input or PWM output.
26 P1.1/TIM3 bidirectional GPIO P1.1 with configurable INT1 external interrupt input; also Timer3 capture input or PWM output.
27 NC unconnected No connection.
28 NC unconnected No connection.
29 L_DU output PWM low-side bridge U-phase output.
30 L_DV output PWM low-side bridge V-phase output.
31 L_DW output PWM low-side bridge W-phase output.
32 H_DU output PWM high-side bridge U-phase output.
33 H_DV output PWM high-side bridge V-phase output.
34 H_DW output PWM high-side bridge W-phase output.
35 VCC power_in Power input whose range depends on VCC_MODE: 5 V to 24 V in single-supply high-voltage mode (VCC_MODE=0, VDD5 from internal LDO), 3 V to 5.5 V with VCC shorted to VDD5 in single-supply low-voltage mode, or 5 V to 36 V in dual-supply mode (VCC_MODE=1 with 5 V on VDD5); use a 10 µF or larger filter capacitor.
36 VSS power_in Digital ground.
37 VDD5 power_in Medium-voltage supply input or internal 5 V LDO output, depending on VCC_MODE, with a 1 µF to 4.7 µF capacitor.
38 VCC_MODE input Digital input that selects the power-supply mode, as described under the VCC pin.
39 RSTN/FICEK input External reset input with internal pull-up; also the FICE debug interface clock.
40 VDD18 power_out 1.85 V LDO output, requires a 1 µF to 4.7 µF capacitor.
41 P1.2/FICED bidirectional GPIO P1.2 with configurable INT1 external interrupt input; also the FICE debug data port.
42 P1.3/HBIAS/A3O bidirectional GPIO P1.3; also Hall bias supply, switched internally from VDD5 to allow high-current output, and the AMP3 output.
43 P1.4/C0P/A3M bidirectional GPIO P1.4 with configurable INT1 input and 4.7 kΩ pull-up; also the Timer1 switching Hall0 input, the differential Hall0/BEMF0 positive input, and the AMP3 negative input.
44 P1.5/C0M/A3P bidirectional GPIO P1.5 with configurable INT1 input and 4.7 kΩ pull-up; also the differential Hall0/BEMF0 negative input and the AMP3 positive input.
45 P1.6/C1P/A1P bidirectional GPIO P1.6 with configurable INT1 input and 4.7 kΩ pull-up; also the Timer1 switching Hall1 input, the differential Hall1/BEMF1 positive input, and the AMP1 positive input for phase-current-1 voltage.
46 P1.7/C1M/A1M bidirectional GPIO P1.7 with configurable 4.7 kΩ pull-up; also the differential Hall1/BEMF1 negative input and the AMP1 negative input.
47 P2.0/AD0/A1O bidirectional GPIO P2.0 with configurable INT1 input; also ADC channel 0 input for the amplified phase-current-1 signal and the AMP1 output.
48 P2.1/C2P/A2P bidirectional GPIO P2.1 with configurable INT1 input and 4.7 kΩ pull-up; also the Timer1 switching Hall2 input, the differential Hall2/BEMF2 positive input, and the AMP2 positive input for phase-current-2 voltage.

Key specifications

Parameter Value
Manufacturer Fortior Tech
Package LQFP-48(7x7)
Category Embedded Processors & Controllers
Pins 48

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
TJ工作时结温 TJ -40 150 ℃ 69
储存温度 -55 150 ℃ 69
VCC 相对 VSS 的电压 VCC -0.3 36 V 69
VDD5 相对 VSS 的电压 VDD5 -0.3 6.5 V 69
RSTN、VCC_MODE、GPIO 相对 VSS 的电压 -0.3 V 69
VCC 工作电压 单电源高压模式 VCC 5 24 V 单电源高压模式, TA = -40℃ ~ 85℃ 72
VCC 工作电压 双电源高压模式 VCC 5 36 V 双电源高压模式, VCC_MODE = 1, VCC ≥ VDD5 72
VCC 工作电压 单电源低压模式 VCC 3 5.5 V VCC_MODE = 1, VCC 与 VDD5 连接 72
VDD5 工作电压 VDD5 3 5.5 V VCC_MODE = 1, VCC 与 VDD5 连接 72
IVCC睡眠电流 IVCC 100 250 μA VCC_MODE = 0 72
IVCC睡眠电流 IVCC 45 100 μA VCC_MODE = 1，VCC = VDD5 = 5V 72
VREF VREF 4.3 4.5 4.7 V VREF_CR[VREFVSEL] = 10 80
运放共模输入范围 VICMR VICMR 0 V 80
运放失配电压 VOS VOS 5 10 mV TA = 25℃ 80
单位增益带宽 UGBW UGBW 6 10 MHz CL = 40pF 80
运放摆率 SR SR 10 15 V/μs CL = 40pF 80
比较器共模输入范围 VICMR VICMR 0 V 80
BEMF 内置电阻 5.4 6.8 8.2 KΩ 81
系统时钟频率 23.5 24 24.5 MHz TA = -40℃ ~ 85℃,VCC = 5V ~ 24V,VCC_MODE = 0 81
低速时钟频率 29 32.8 37 KHz TA = -40℃ ~ 85℃,VCC = 5V ~ 24V,VCC_MODE = 0 81
RSTN 复位低电平最小宽度 RSTN 25 50 μs 81
VDD5 电压 (LDO) VDD5 4.7 5 5.3 V VCC = 7V ~ 24V,VCC_MODE = 0,TA = -40℃~ 85℃ 82
芯片结温相对环境温度 (JEDEC 2S2P PCB) ƟJA 52.4 ℃/W JEDEC 标准，2S2P PCB 83
芯片结温相对环境温度 (JEDEC 1S0P PCB) ƟJA 72.2 ℃/W JEDEC 标准，1S0P PCB 83
芯片结温相对封装表面温度 (JEDEC 1S0P PCB) ƟJC 17 ℃/W JEDEC 标准，1S0P PCB 83

CAD (KiCad official)

  • Symbol: FU6811L
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: fu6811l-etched.step / fu6811l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fu6811l.step / fu6811l.glb are the bare package body.

Provenance

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

  • Datasheet: Fortior Tech datasheet (292 pp, sha256 d5a21e4e7fe9a48c, retrieved 2026-10-18, 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