Datasheet STUSB4500L (STMicroelectronics) - 5

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STUSB4500L Pin description Table 2. Pin function descriptions Type Description
D Digital A Analog O Output pad I Input pad IO Bidirectional pad OD Open drain output PD Pull-down PU Pull-up HV High voltage PWR Power GND Ground
2.2 Pin description 2.2.1 CC1 / CC2
CC1 and CC2 are the configuration channel pins used for connection and attachment detection, plug orientation determination. CC1 and CC2 are HiZ during reset.
2.2.2 CC1DB / CC2DB
CC1DB and CC2DB are enabled by dead battery mode by connecting CC1DB and CC2DB respectively to CC1 and CC2. Thanks to this connection, the pull-down terminations on the CC pins are present by default even if the device is not supplied (see Section 3.3 Dead battery mode). Warning: CC1DB and CC2DB must be connected to ground when dead battery mode is not supported, then Vsys must be used.
2.2.3 RESET
Active high reset.
2.2.4 I²C interface pins Table 3. I2C interface pin list Name Description
SCL I²C clock, need external pull-up SDA I²C data, need external pull-up ALERT I²C interrupt, need external pull-up ADDR0, ADDR1 I²C device address bits (see Section 4 I²C Interface) Warning: ADDR0 and ADDR1 pins must be connected to ground when there is no connection to an MCU.
DS13102
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Document Outline Cover image Product status link / summary Product status link / summary Features Applications Description 1 Functional description 1.1 Block overview 2 Inputs/outputs 2.1 Pinout 2.2 Pin description 2.2.1 CC1 / CC2 2.2.2 CC1DB / CC2DB 2.2.3 RESET 2.2.4 I²C interface pins 2.2.5 DISCH 2.2.6 GND 2.2.7 ATTACH 2.2.8 RP_3A/RP_1A5 2.2.9 GPIO 2.2.10 VBUS_EN_SNK 2.2.11 A_B_SIDE 2.2.12 VBUS_VS_DISCH 2.2.13 VREG_1V2 2.2.14 VSYS 2.2.15 VREG_2V7 2.2.16 VDD 3 Description of the features 3.1 CC interface 3.2 VBUS power path control 3.2.1 VBUS monitoring 3.2.2 VBUS discharge 3.2.3 VBUS power path assertion 3.3 Dead battery mode 3.4 High voltage protections 3.5 Hardware fault management 3.6 Debug accessory mode detection 4 I²C Interface 4.1 Read and write operations 4.2 Timing specifications 5 Start-up configuration 5.1 User-defined parameters 5.2 Default start-up configuration 6 Application 6.1 General information 6.1.1 Power supplies 6.1.2 Connection to MCU or application processor 6.2 Typical application 7 Electrical characteristics 7.1 Absolute maximum ratings 7.2 Operating conditions 7.3 Electrical and timing characteristics 8 Package information 8.1 QFN-24 EP (4x4) package information 8.2 WLCSP (2.6x2.6x0.5) 25 bumps package information 8.3 Thermal information 9 Terms and abbreviations Revision history