Catalog
Advanced Universal Serial Bus Transceiver
Key Features
• Complies With Universal Serial Bus SpecificationRev. 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 RatesIntegrated Bypassable 5-V to 3.3-V Voltage Regulatorfor Powering Via USB VBUSLow-Power Operation is Ideal for Portable EquipmentMeets the IEC-61000-4-2 Contact Discharge (±9 kV)and Air-Gap Discharge (±9 kV) ESD RatingsSeparate I/O Supply With Operation Down to 1.65 VVery-Low Power Consumption to Meet USB SuspendCurrent RequirementsNo Power-Supply Sequencing RequirementsAPPLICATIONSCellular PhonesPersonal Digital Assistants (PDAs)Handheld ComputersComplies With Universal Serial Bus SpecificationRev. 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 RatesIntegrated Bypassable 5-V to 3.3-V Voltage Regulatorfor Powering Via USB VBUSLow-Power Operation is Ideal for Portable EquipmentMeets the IEC-61000-4-2 Contact Discharge (±9 kV)and Air-Gap Discharge (±9 kV) ESD RatingsSeparate I/O Supply With Operation Down to 1.65 VVery-Low Power Consumption to Meet USB SuspendCurrent RequirementsNo Power-Supply Sequencing RequirementsAPPLICATIONSCellular PhonesPersonal Digital Assistants (PDAs)Handheld Computers
Description
AI
The TUSB2551A 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 TUSB2551A 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 TUSB2551A 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 TUSB2551A 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 TUSB2551A 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 TUSB2551A 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.
