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PDF USB1T1103 Data sheet ( Hoja de datos )

Número de pieza USB1T1103
Descripción Universal Serial Bus Peripheral Transceiver
Fabricantes Fairchild Semiconductor 
Logotipo Fairchild Semiconductor Logotipo



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USB1T1103
Universal Serial Bus Peripheral Transceiver
with Voltage Regulator
July 2006
www.DataSheet4U.com
Features
Complies with Universal Serial Bus Specification 2.0
Integrated 5V to 3.3V voltage regulator for powering
VBus
Utilizes digital inputs and outputs to transmit and
receive USB cable data
Supports full speed (12Mbits/s) data rates
Ideal for portable electronic devices
MLP technology package (16 terminal) with HBCC
footprint
15kV 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
Description
This chip provides a USB Transceiver functionality with a
voltage regulator that is compliant to USB Specification
Rev 2.0. this integrated 5V to 3.3V regulator allows inter-
facing of USB Application specific devices with supply
voltages ranging from 1.65V to 3.6V with the physical
layer of Universal Serial Bus. It is capable of operating at
12Mbits/s (full speed) data rates and hence is fully com-
pliant to USB Specification Rev 2.0. The Vbusmon termi-
nal allows for monitoring the Vbus line.
The USB1T1103 also provides exceptional ESD protec-
tion with 15kV contact HBM on D+,D- terminals
Ordering Information
Part Number
USB1T1103MPX
Package
Number
MLP14D
Product code
Top Mark
$Y&Z&2&T
USB1103
Pb-Free
Yes
Package Description
14-Terminal Molded Leadless Package
(MLP), 2.5mm Square
USB1T1103MHX MLP16HB
$Y&Z&2&T
USB1103
Pb-Free package per JEDEC J-STD-020B.
Yes 16-Terminal Molded Leadless Package
(MHBCC), JEDEC MO-217,3mm
Square
Packing
Method
3K Units
on Tape
and Reel
3K Units
on Tape
and Reel
© 2005 Fairchild Semiconductor Corporation
USB1T1103 Rev. 1.0.2
www.fairchildsemi.com

1 page




USB1T1103 pdf
Power Supply Configurations and Options
The three modes of power supply operation are:
Normal Mode: Regulated Output and Regulator Bypass
1. Regulated Output: VCCIO is connected and VCC(5.0)
is connected to 5V (4.0V to 5.5V) and the internal
voltage regulator then produces 3.3V for the USB
connections.
2. Internal Regulator Bypass Mode: VCCIO is con-
nected and both VCC(5.0) and VREG(3.3) are con-
nected to a 3.3V source (3.0V to 3.6V).
In both cases, for normal mode, the VCCIO is an indepen-
dent voltage source (1.65V to 3.6V) that is a function of
the external circuit configuration.
Sharing Mode: VCCIO is only supply connected. VCC
and VREG are not connected. In this mode, the D+ and
D- terminals are 3-STATE and the USB1T1103 allows
external signals up to 3.6V to share the D+ and D- bus
lines. Internally the circuitry limits leakage from D+ and
D- terminals (maximum 10µA) and VCCIO such that
device is in low power (suspended) state. Terminals
Vbusmon and RCV are forced LOW as an indication of
this mode with Vbusmon being ignored during this state.
Disable Mode: VCCIO is not connected. VCC is con-
nected, or VCC and VREG are connected. 0V to 3.3V in
this mode D+ and D- are 3-STATE and VPU is HIGH
Impedance (switch is turned off). The USB1T1103 allows
external signals up to 3.6V to share the D+ and D- bus
lines. Internally the circuitry limits leakage from D+ and
D- pins (maximum 10µ A).
A summary of the Supply Configurations is described in
Table 4.
Table 4. Power Supply Configuration Options
Terminals
VCC (5V)
Disable
Connected
to 5V source
Sharing
Not Connected
or <3.6V
VREG (3.3V)
VCCIO
VPU (3.3V)
D =, D-
3.3V, 300µA
Regulated Output
0.5V
3-STATE (off)
Not Connected
1.65V to 3.6V Source
3-STATE (off)
3-STATE (off)
3-STATE
Vp/Vpo, Vm/Vmo
RCV
Invalid [I]
Invalid [I]
L
L
Vbusmon
Invalid [I]
L
OE, SUSPND, Config
Hi-Z
Hi-Z
Notes:
6. Invalid [I] I/O are to be 3-STATE, outputs to be LOW.
Normal
(Regulated Output)
Connected to
5V Source
3.3V, 300µA
Regulated Output
1.65V to 3.6V Source
3.3V Available if
Config = HIGH
Function of
Mode Set Up
Function of
Mode Set Up
Function of
Mode Set Up
Function of
Mode Set Up
Function of
Mode Set Up
Normal
(Regulator Bypass)
Connected to
VREG (3.3V)
[Max Drop of 0.3V]
(2.7V to 3.6V)
Connected to 3.3V Source
1.65V to 3.6V Source
3.3V Available if
Config = HIGH
Function of
Mode Set Up
Function of
Mode Set Up
Function of
Mode Set Up
Function of
Mode Set Up
Function of
Mode Set Up
© 2005 Fairchild Semiconductor Corporation
USB1T1103 Rev. 1.0.2
5
www.fairchildsemi.com

5 Page





USB1T1103 arduino
Typical Application Configurations
Figure 6. Upstream Connection in Bypass Mode with Differential Outputs
Figure 7. Downstream Connection in Normal Mode with Differential Outputs
© 2005 Fairchild Semiconductor Corporation
USB1T1103 Rev. 1.0.2
11
www.fairchildsemi.com

11 Page







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