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參數(shù)資料
| 型號(hào)： | USB1T1103MPX |
| 廠商： | Fairchild Semiconductor |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX USB VOLT REG 2.5MM 14MLP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 1/1 |
| 規(guī)程： | USB 2.0 |
| 電源電壓： | 4 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-MLP |
| 供應(yīng)商設(shè)備封裝： | 14-MLP |
| 包裝： | 剪切帶 (CT) |
| 其它名稱： | USB1T1103MPXCT USB1T1103MPX_NLCT USB1T1103MPX_NLCT-ND |
USB1
T1
103
Universal
Serial
Bus
Peri
ph
eral
T
ransceiver
with
V
o
lt
age
Regulator
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
USB1T1103 Rev. 1.0.
4
5
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 10A) 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 10 A).
A summary of the Supply Configurations is described in
Table 4.
Table 4. Power Supply Configuration Options
Notes:
6. Invalid [I] I/O are to be 3-STATE, outputs to be LOW.
Terminals
Disable
Sharing
Normal
(Regulated Output)
Normal
(Regulator Bypass)
VCC (5V)
Connected
to 5V source
Not Connected
or <3.6V
Connected to
5V Source
Connected to
VREG (3.3V)
[Max Drop of 0.3V]
(2.7V to 3.6V)
VREG (3.3V)
3.3V, 300A
Regulated Output
Not Connected
3.3V, 300A
Regulated Output
Connected to 3.3V Source
VCCIO
≤0.5V
1.65V to 3.6V Source
VPU (3.3V)
3-STATE (off)
3.3V Available if
Config = HIGH
3.3V Available if
Config = HIGH
D =, D-
3-STATE (off)
3-STATE
Function of
Mode Set Up
Function of
Mode Set Up
Vp/Vpo, Vm/Vmo
Invalid [I]
L
Function of
Mode Set Up
Function of
Mode Set Up
RCV
Invalid [I]
L
Function of
Mode Set Up
Function of
Mode Set Up
Vbusmon
Invalid [I]
L
Function of
Mode Set Up
Function of
Mode Set Up
OE, SUSPND, Config
Hi-Z
Function of
Mode Set Up
Function of
Mode Set Up
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