USB1T1103MHX(2007) Просмотр технического описания (PDF) - Fairchild Semiconductor
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производитель
USB1T1103MHX
(Rev.:2007)
(Rev.:2007)
Fairchild Semiconductor
USB1T1103MHX Datasheet PDF : 16 Pages
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Terminal Descriptions
Terminal
Number Terminal
Name
MLP14 MLP16
1
1
OE
2
2
RCV
3
3
Vp/Vpo
4
4
Vm/Vmo
5
5
SUSPND
—
6
NC
6
7
VCCIO
7
8
Vbusmon
9, 8
10, 9
D+, D-
10
11
NC
—
12
NC
11
13
VREG (3.3V)
12
14
VCC (5.0V)
13
15
VPU (3.3V)
14
16
Exposed Exposed
Diepad Diepad
Config
GND
I/O
I
O
I/O
I/O
I
O
AI/O
I
GND
Terminal Description
Output Enable:
Active LOW enables the transceiver to transmit data on the bus. When not active the transceiver is in
the receive mode (CMOS level is relative to VCCIO)
Receive Data Output:
Non-inverted CMOS level output for USB differential Input (CMOS output level is relative to VCCIO).
Driven LOW when SUSPN is HIGH; RCV output is stable and preserved during SE0 condition.
Single-ended D+ receiver output VP (CMOS level relative to VCCIO):
Used for external detection of SE0, error conditions, speed of connected device; Terminal also acts
as drive data input Vpo (see Table 1 and Table 2).
Output drive is 4 mA buffer.
Single-ended D- receiver output Vm (CMOS level relative to VCCIO):
Used for external detection of SE0, error conditions, speed of connected device; Terminal also acts
as drive data input Vmo (see Table 1 and Table 2).
Output drive is 4 mA buffer.
Suspend:
Enables a low power state (CMOS level is relative to VCCIO). While the
SUSPND terminal is active (HIGH) it will drive the RCV terminal to logic “0” state.
No Connect
Supply Voltage for digital I/O terminals (1.65V to 3.6V):
When not connected the D+ and D- terminals are in 3-STATE. This supply bus is totally independent
of VCC (5V) and VREG (3.3V), and must never exceed the VREG (3.3) voltage. For VCCIO discon-
nected the O+/O- terminals are HIGH Impedance and the VPU (3.3V) is turned off.
Vbus monitor output (CMOS level relative to VCCIO):
When Vbus > 4.1V then Vbusmon = HIGH and when Vbus < 3.6V then
Vbusmon = LOW. If SUSPND = HIGH then Vbusmon is pulled HIGH.
Data +, Data -:
Differential data bus conforming to the USB standard. Terminals are HIGH Impedance for bus pow-
ered mode when Vbus < 3.6V. For ByPass Mode then HIGH Impedance when VREG/ Vbus < VREG
minimum.
No Connect
No Connect
Internal Regulator Option:
Regulated supply output voltage (3.0V to 3.6V) during 5V operation;
decoupling capacitor of at least 0.1 µF is required.
Regulator ByPass Option:
Used as supply voltage input for 3.3V operation.
Internal Regulator Option:
Used as supply voltage input (4.0V to 5.5V); can be connected directly to USB line Vbus.
Regulator ByPass Option:
Connected to VREG (3.3V)
Pull-up Supply Voltage (3.3V ± 10%):
Connect an external 1.5kΩ resistor on D+ (FS data rate);
Terminal function is controlled by Config input terminal:
Config = LOW - VPU (3.3V) is floating (HIGH Impedance) for zero pull-up current.
Config = HIGH - VPU (3.3V) = 3.3V; internally connected to VREG (3.3V).
VPU is OFF in disable mode.
USB connect or disconnect software control input.
Configures 3.3V to external 1.5kΩ resistor on D+ when HIGH.
GND supply down bonded to exposed diepad to be connected to the PCB GND.
© 2005 Fairchild Semiconductor Corporation
USB1T1103 Rev. 1.0.3
3
www.fairchildsemi.com
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