![Electrical issue with USB ? Hi-speed device not working on own design - Electrical Engineering Stack Exchange Electrical issue with USB ? Hi-speed device not working on own design - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/hx65P.png)
Electrical issue with USB ? Hi-speed device not working on own design - Electrical Engineering Stack Exchange
![MPQ4228-C-AEC1 | 36V, 3A, Step-Down Converter with USB Charging Port Supporting CDP and Type-C 5V @ 3A DFP Mode, AEC-Q100 Qualified | MPS MPQ4228-C-AEC1 | 36V, 3A, Step-Down Converter with USB Charging Port Supporting CDP and Type-C 5V @ 3A DFP Mode, AEC-Q100 Qualified | MPS](https://media.monolithicpower.com/catalog/product/cache/ccb9ba928e4f463ae145b55d0127b66f/m/p/mpq4228-c-aec1_tac.jpg)
MPQ4228-C-AEC1 | 36V, 3A, Step-Down Converter with USB Charging Port Supporting CDP and Type-C 5V @ 3A DFP Mode, AEC-Q100 Qualified | MPS
What is the exact voltage of a standard USB data signal in either data wire? I'd assume they are the same. I know that the power wires are 5 volts. - Quora
![RT1738 - Type-C CC and SBU Short to VBUS Over-Voltage and IEC ESD Protection Switch | Richtek Technology RT1738 - Type-C CC and SBU Short to VBUS Over-Voltage and IEC ESD Protection Switch | Richtek Technology](https://www.richtek.com/m/~/media/Richtek/Products/ProductSpecs/RT1738/en/Version3/46097icwef.jpg?bc=White&h=312&la=en&w=471)
RT1738 - Type-C CC and SBU Short to VBUS Over-Voltage and IEC ESD Protection Switch | Richtek Technology
To what voltage should the D+ line be pulled up when designing USB connection in STM32? +5V or +3.3V? All documentation and dev board scematics says it's 3.3V, but it didn't work.
![TPS25830-Q1: DM and DP communicate with host directly without passing through USB switch inside the chip - Interface forum - Interface - TI E2E support forums TPS25830-Q1: DM and DP communicate with host directly without passing through USB switch inside the chip - Interface forum - Interface - TI E2E support forums](https://e2e.ti.com/resized-image/__size/1230x0/__key/communityserver-discussions-components-files/138/4482C.png)