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STOTG04E：USB-OTG Full-speed Transceiver with USB, UART, Audio and I2C Operating Modes

The STOTG04 is a USB On-The-Go full-speed transceiver. It provides complete physical layer (PHY) solution for any USB-OTG device. It contains V_BUS charge pump and comparators, ID line detector and interrupt generator, and the USB differential driver and receivers. The STOTG04 transceiver is suitable for mobile and battery powered devices because of its low power consumption and power-down operating mode.

The transceiver is capable of operation in several different modes. It can operate in basic USB-OTG mode, as an I²C and UART transceiver, or in audio mode. Behavior of the transceiver is fully configurable through the two-wire I²C serial bus. The transceiver supports session request protocol and host negotiation protocol.

The applications are mobile phones, PDAs, MP3 players, printers and digital cameras.

Key Features

• Integrated pull-up/-down resistors
• Ability to control external charge pump for higher VBUS currents
• +1.6V to +3.6V Digital power supply and +2.7V to +5.5V analog supply voltage range
• ±6kV ESD Protection on all USB pins (contact discharge)
• Power-down mode with very low power consumption for battery powered devices
• Supports the session request protocol (SRP) and host negotiation protocol (HNP)
• Standard digital interface compliant with the OTG transceiver specification
• Meets USB specification Rev. 2.0 And on-thego supplement to the USB 2.0 specification
• Four operating modes: USB, I2 C, UART and Audio
• Analog car kit-compatible
• Capable of 12Mbit/s full-speed and 1.5Mbit/s low-speed modes of operation
• 35mA typical VBUS charge pump output current for 3.3V supply voltage
• Configurable using I2 C serial interface

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