1

FEATURES

APPLICATIONS

NC – No internal connection

SPEED

RCV

VP

VM

D+

D–

OE

1

2

3

4

14

16

13

15

12

11

10

9

5

6

7

8

GND

(Exposed die pad)

RGT PACKAGE

(BOTTOM VIEW)

PW PACKAGE

(TOP VIEW)

SPEED

RCV

VP

VM

SOFTCON

GND

D+

D–

OE

SUSPEND

1

2

3

4

5

6

14

13

12

11

10

9

7

8

DESCRIPTION/ORDERING INFORMATION

TUSB2551A

ADVANCED UNIVERSAL SERIAL BUS TRANSCEIVER

• 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

• Low-Power Operation is Ideal for Portable

Equipment

• Meets the IEC-61000-4-2 Contact Discharge

(±9 kV) and Air-Gap Discharge (±9 kV) 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

• Cellular Phones

• Personal Digital Assistants (PDAs)

• Handheld Computers

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

operate at its core voltage without the addition of buffering logic, and also reduce system operating current.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

UNLESS

OTHERWISE

NOTED

this

document

contains

Copyright © 2009, Texas Instruments Incorporated

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.