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STUSB4500LBJR 数据表(PDF) 4 Page - STMicroelectronics |
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STUSB4500LBJR 数据表(HTML) 4 Page - STMicroelectronics |
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4 / 31 page  Table 1. Pin function list QFN CSP Name Type Description Typical connection 1 B4 CC1DB HV AIO Dead battery enable on CC1 pin To CC1 pin if used or ground 2 B5 CC1 HV AIO Type-C configuration channel 1 To Type-C receptacle A5 3 B3, C3 NU - - To ground 4 C5 CC2 HV AIO Type-C configuration channel 2 To Type-C receptacle B5 5 C4 CC2DB HV AIO Dead battery enable on CC2 pin To CC2 pin if used or ground 6 D4 RESET DI Reset input, active high From system 7 D5 SCL DI I2C clock input To I²C master, ext. pull-up or floating (if not used 8 E5 SDA DI/OD I2C data input/output, active low open drain To I²C master, ext. pull-up or floating (if not used 9 E4 DISCH HV AI/OD Internal discharge path or external discharge path enable, active low open drain From power system (internal path) or to the discharge path switch (external path), ext. pull- up 10 E3 GND GND Ground Ground 11 E2 ATTACH OD Attachment detection, active low open drain To MCU if any, ext. pull-up 12 D3 ADDR0 DI I²C device address setting Static, to ground or ext. pull-up for address selection, to ground if no connection to MCU 13 D2 ADDR1 DI I²C device address setting Static, to ground or ext. pull-up for address selection, to ground if no connection to MCU 14 E1 RP_1A5 OD 1.5 A source flag, active low open drain To power system, ext. pull-up 15 D1 GPIO OD General purpose output, active low open drain To system, ext. pull-up 16 C1 VBUS_EN_SNK HV OD VBUS sink power path enable, active low open drain To power switch or to power system, ext. pull-up 17 C2 A_B_SIDE OD Cable orientation, active low open drain USB super speed MUX select, ext. pull-up 18 A1 VBUS_VS_DISCH HV AI VBUS voltage monitoring and discharge path From VBUS, receptacle side 19 B2 ALERT OD I2C interrupt, active low open drain To I²C master, ext. pull-up 20 A2 RP_3A HV OD 3 A source flag, active low open drain To power switch or to power system, ext. pull-up 21 A3 VREG_1V2 PWR 1.2 V internal regulator output 1 µF typ. decoupling capacitor 22 B1 VSYS PWR Power supply from system From power system, connect to ground if not used 23 A4 VREG_2V7 PWR 2.7 V internal regulator output 1 µF typ. decoupling capacitor 24 A5 VDD HV PWR Power supply from USB power line From VBUS, receptacle side EP - EP GND Exposed pad is connected to ground To ground STUSB4500L Pinout DS13102 - Rev 1 page 4/31 |
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