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Advanced Universal Serial Bus Transceiver

TUSB2551 is not recommended for new designs
Although this product continues to be in production to support previous designs, we don't recommend it for new designs. Consider one of these alternates:
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TUSB2551A ACTIVE Advanced Universal Serial Bus Transceiver TI does not recommend using this part for a new design. This product continues to be in production to support existing customers.

Product details

Function USB2 USB speed (MBits) 12 Type Transceiver Rating Catalog Operating temperature range (°C) -40 to 85
Function USB2 USB speed (MBits) 12 Type Transceiver Rating Catalog Operating temperature range (°C) -40 to 85
TSSOP (PW) 14 32 mm² 5 x 6.4
  • Complies With Universal Serial Bus Specification Rev. 2.0 (USB 2.0)
  • Transmits and Receives Serial Data at Both Full-Speed (12-Mbit/s) and Low-Speed (1.5-Mbit/s) Data Rates
  • Integrated Bypassable 5-V to 3.3-V Voltage Regulator for Powering Via USB VBUS
  • Low-Power Operation, Ideal for Portable Equipment
  • Meets the IEC-61000-4-2 Contact (±9KV) and Air-gap (±9KV) ESD Ratings
  • Separate I/O Supply With Operation Down to 1.65 V
  • Very-Low Power Consumption to Meet USB Suspend Current Requirements
  • No Power-Supply Sequencing Requirements
  • APPLICATIONS
    • Cellular Phones
    • Personal Digital Assistants (PDAs)
    • Handheld Computers

  • Complies With Universal Serial Bus Specification Rev. 2.0 (USB 2.0)
  • Transmits and Receives Serial Data at Both Full-Speed (12-Mbit/s) and Low-Speed (1.5-Mbit/s) Data Rates
  • Integrated Bypassable 5-V to 3.3-V Voltage Regulator for Powering Via USB VBUS
  • Low-Power Operation, Ideal for Portable Equipment
  • Meets the IEC-61000-4-2 Contact (±9KV) and Air-gap (±9KV) ESD Ratings
  • Separate I/O Supply With Operation Down to 1.65 V
  • Very-Low Power Consumption to Meet USB Suspend Current Requirements
  • No Power-Supply Sequencing Requirements
  • APPLICATIONS
    • Cellular Phones
    • Personal Digital Assistants (PDAs)
    • Handheld Computers

The TUSB2551 is a single-chip transceiver that complies with the physical-layer specifications of universal serial bus (USB) 2.0. The device supports both full-speed (12-Mbit/s) and low-speed (1.5-Mbit/s) operation. The TUSB2551 delivers superior edge rate control, producing crisper eye diagrams, which ease the task of passing USB compliance testing.

A dual supply-voltage operation allows the TUSB2551 to reference the system interface I/O signals to a supply voltage down to 1.6 V, while independently powered by the USB VCC(5.0). This allows the system interface to operate at its core voltage without the addition of buffering logic, and also reduce system operating current.

The TUSB2551 is a single-chip transceiver that complies with the physical-layer specifications of universal serial bus (USB) 2.0. The device supports both full-speed (12-Mbit/s) and low-speed (1.5-Mbit/s) operation. The TUSB2551 delivers superior edge rate control, producing crisper eye diagrams, which ease the task of passing USB compliance testing.

A dual supply-voltage operation allows the TUSB2551 to reference the system interface I/O signals to a supply voltage down to 1.6 V, while independently powered by the USB VCC(5.0). This allows the system interface to operate at its core voltage without the addition of buffering logic, and also reduce system operating current.

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* Data sheet Advanced Universal Serial Bus Transceiver datasheet 14 Feb 2008

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