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參數(shù)資料
| 型號(hào)： | USB1T1105AMHX |
| 廠商： | Fairchild Semiconductor |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | TRANSCEIVER USB W/VREG 16MHBCC |
| 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： | 16-MLP，16-MHBCC |
| 供應(yīng)商設(shè)備封裝： | 16-MLP |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 1223 (CN2011-ZH PDF) |
| 其它名稱： | USB1T1105AMHXDKR |
www.fairchildsemi.com
4
USB1
T1
1
0
5
A
Note 4: SE0 = Single Ended Zero
TABLE 4. Receiver Function (OE = H)
X = Don’t Care
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 connected and
both VCC(5.5) and VREG(3.3) are connected to a 3.3V
source (3.0V to 3.6V).
In both cases for normal mode the VCCIO is an independent
voltage source (1.65V to 3.6V) that is a function of the exter-
nal circuit configuration.
Sharing Mode: VCCIO is only supply connected. VCC and
VREG are not connected. In this mode the D and D pins are
3-STATE and the USB1T1105A 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 PA) and
VCCIO such that device is in low power (suspended) state.
Terminals Vbusmon and RCV are forced LOW as an indica-
tion of this mode with Vbusmon being ignored during this
state.
Disable Mode: VCCIO is not connected. VCC is connected, 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 USB1T1105A 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 10PA).
A summary of the Supply Configurations is described in Table 5.
TABLE 5. Power Supply Configuration Options
Note 5: Hi-Z or forced LOW.
D
, D
RCV
Vp
Vm
Differential Logic 1
H
L
Differential Logic 0
L
H
SE0
X
L
Sharing Mode
L
H
Pins
Power Supply Mode Configuration
Sharing
Disable
Normal
(Regulated Output)
Normal
(Regulator Bypass)
VCC
(5V)
3.6V
Connected
to 5V Source
Connected to 5V Source
Connected to VREG (3.3V)
[max drop of 0.3V]
(2.7V to 3.6V)
VREG (3.3V)
Pulled LOW
Regulator OFF
3.3V, 300
PA
Regulated Output
3.3V, 300
PA
Regulated Output
Connected
to 3.3V Source
VCCIO
1.65V to 3.6V Source
Not Connected
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
Function of Mode Set Up
Vp, Vm
H
Invalid
Function of Mode Set Up
RCV
L
Invalid
Function of Mode Set Up
OE, SUSPND,
Config, Vpo/Vo,
Vmo/FSEO, MODE
Hi-Z
Function of Mode Set Up
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