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Fairchild USB1T1103 Universal Serial Bus Peripheral Transceiver with Voltage Regulator Data Sheet

Summary

This transceiver is a USB Peripheral Transceiver that provides full compatibility with the USB 2.0 specification and includes an integrated 5V to 3.3V voltage regulator. It handles data rates up to 12Mbits/s while offering robust ESD protection for reliable connectivity. This manual details its technical features, including regulated power and Vbus monitoring capabilities. Ideal for engineers designing portable electronics like PDAs, cellular devices, MP3 players, and digital cameras requiring stable USB peripheral function.

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Page 1 Text Content

查询USB1T1103供应商

1T 1103 U iversal S erial B s P erip eral Tran sceiver w ith Vo ltag e R eg lato

April 2005 Revised May 2005

USB1T1103 Universal Serial Bus Peripheral Transceiver with Voltage Regulator General Description Features This chip provides a USB Transceiver functionality with a ■Complies with Universal Serial Bus Specification 2.0 voltage regulator that is compliant to USB Specification Integrated 5V to 3.3V voltage regulator for powering Rev 2.0. this integrated 5V to 3.3V regulator allows inter-

facing of USB Application specific devices with supply volt-

■Utilizes digital inputs and outputs to transmit and receive

ages ranging from 1.65V to 3.6V with the physical layer of

USB cable data

Universal Serial Bus. It is capable of operating at 12Mbits/s

■Supports full speed (12Mbits/s) data rates

(full speed) data rates and hence is fully compliant to USB

Specification Rev 2.0. The Vbusmon terminal allows for Ideal for portable electronic devices

monitoring the Vbus line. ■MLP technology package (16 terminal) with HBCC

The USB1T1103 also provides exceptional ESD protection footprint

with 15k V contact HBM on D, D terminals. ■15k V contact HBM ESD protection on bus terminals

■Supports disable mode and is functionally equivalent to Philips ISP1102

Applications PDA PC Peripherals Cellular Phones MP3 Players Digital Still Camera Information Appliance

Ordering Code:

Package

Order Number Package Description

Number

USB1T1103MPX MLP14D Pb-Free 14-Terminal Molded Leadless Package (MLP), 2.5mm Square USB1T1103MHX MLP16HB Pb-Free 16-Terminal Molded Leadless Package (MHBCC), JEDEC MO-217, 3mm Square Pb-Free package per JEDEC J-STD-020B.

© 2005 Fairchild Semiconductor Corporation DS500905 www.fairchildsemi.com

Page Summary Contents For Fairchild USB1T1103 Universal Serial Bus Peripheral Transceiver with Voltage Regulator Data Sheet

Page 1 查询USB1T1103供应商 1T 1103 U iversal S erial B s P erip eral Tran sceiver w ith Vo ltag e R eg lato April 2005 Revised May 2005 USB1T1103 Universal Serial Bus Peripheral Transceiver with Voltage Regulator...
Page 2 Logic Diagram Connection Diagrams MLP16 GND Exposed Diepad MLP14 GND Exposed Diepad (Bottom View) (Bottom View) www.fairchildsemi.com
Page 3 1T Terminal Descriptions Terminal Number Terminal I/O Terminal Description MLP14 MLP16 Name OE Output Enable: Active LOW enables the transceiver to transmit data on the bus. When not active the transc...
Page 4 Functional Description The USB1T1103 transceiver is designed to convert CMOS rather than discrete input and output terminals. Table 1 data into USB differential bus signal levels and to convert descri...
Page 5 1T Power Supply Configurations and Options The three modes of power supply operation are: signals up to 3.6V to share the D and D bus lines. Normal Mode: Regulated Output and Regulator Bypass Intern...
Page 6 Human Body Model ESD Protection Figure 1 shows the schematic representation of the Human ESD Performance of the USB1T1103 Body Model ESD event. Figure 2 is the ideal waveform rep- resentation of the H...
Page 7 1T Absolute Maximum Ratings(Note ) Recommended Operating Conditions Supply Voltage (VCC)(5V) 0.5V to 6.0V I/O Supply Voltage (VCCIO) 0.5V to 4.6V DC Supply Voltage VCC (5V) 4.0V to 5.5V Latch-up Cur...
Page 8 DC Electrical Characteristics (Continued) Limits Symbol Parameter Conditions Units40q C to 85q C Min Typ Max VCCTH VCC Threshold Detection Voltage 1.65V d VCCIO d 3.6V 3.6 VSupply Lost Supply Presen...
Page 9 1T DC Electrical Characteristics (Analog I/O Terminals – D, D Terminals) Over recommended range of supply voltage and operating free air temperature (unless otherwise noted). VCC 4.0V to 5.5V or VRE...
Page 10 AC Electrical Characteristics (A I/O Terminals Full Speed) Over recommended range of supply voltage and operating free air temperature (unless otherwise noted). VCC 4.0V to 5.5V or VREG 3.0V to 3.6V, ...
Page 11 1T Typical Application Configurations Upstream Connection in Bypass Mode with Differential Outputs Downstream Connection in Normal Mode with Differential Outputs www.fairchildsemi.com
Page 12 AC Waveforms FIGURE 4. Rise and Fall Times FIGURE 5. Vpo, Vmo to D/D FIGURE 6. D/D to RCV, Vpo/Vp and Vmo/Vm FIGURE 7. OE to D/D Test Circuits and Waveforms CL 50 p F Full Speed Propagation Delays...
Page 13 1T Tape and Reel Specification Tape Format for MHBCC and MLP Package Tape Number Cavity Cover Tape Designator Section Cavities Status Status Leader (Start End) 125 (typ) Empty Sealed MHX/MPX Carrier 2...
Page 14 Physical Dimensions inches (millimeters) unless otherwise noted Pb-Free 14-Terminal Molded Leadless Package (MLP), 2.5mm Square Package Number MLP14D www.fairchildsemi.com
Page 15 1T 1103 U iversal S erial B s P erip eral Tran sceiver w ith Vo ltag e R eg lato Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Pb-Free 16-Terminal Molded Leadless Package...

Manual Details

Brand Fairchild
Pages 15
File Size 1.26 MB
Published May 28, 2026
48 views

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Frequently Asked Questions

What kind of data rates does the USB1T1103 support?

It supports full speed (12Mbits/s) and is fully compliant with USB Specification Rev 2.0.

Does the chip have internal voltage regulation capabilities?

Yes, it integrates a 5V to 3.3V voltage regulator for powering Vbus-facing devices.

What safety features are included on the bus terminals?

It provides exceptional ESD protection with 15kV contact HBM on D+ and D- terminals.

How can this chip be used for monitoring purposes?

The Vbusmon terminal allows it to monitor the Vbus line, indicating when voltage drops from 4.1V or rises above 3.6V.