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參數(shù)資料
| 型號(hào)： | FUSB1500MHX |
| 廠商： | Fairchild Semiconductor |
| 文件頁數(shù)： | 3/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC USB 2.0 TRANSCEIVER 16-MLP |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 類型： | USB 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： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 16-MLP（3x3） |
| 包裝： | 帶卷 (TR) |
2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FUSB1500 Rev. 1.0.1
11
FUSB1500/1501
—
USB2.0
Full-Speed
/
Low-S
peed
Transceiver
with
Charger
Detection
Functional Description (Continued)
Extended Control Mode
This block of control has a multi-function role; it is used
to signal a SE0 detect to the host via INT_N and uses a
weak resistor pull-up method for charger detection.
Note that the signaling of SE0 via INT_N is only enabled
for the state “011” and all SE0 events can still be
decoded from the VP, VM, and RCV outputs.
When the three inputs (SUSPND, CONFIG, and
SPEED_N) are not “011,” INT_N is not active; the SE0
detector (RCV = 0) is not active and its latch is set to
HIGH. When the “011” is seen on the inputs, the
FUSB1500/1501 is waiting for an SE0 event. When the
SE0 event (deglitched) is detected, INT_N goes active
(HL transition). The host detects this INT_N signal and
configures the inputs to the pattern “110” or “010” to
keep the 1.5k
pull-up enabled. The INT_N signal is
then de-asserted and the SE0 detector reset.
If a code other than “010” or “110” is written, the mode
configuration is a function as described in Table 4 and the
SE0 detector and INT_N are de-asserted to reset states.
When entering the state “111,” which enables the weak
pull up resistor for charger detection, the D+/D- drivers
are automatically configured to USB receive mode
(equivalent to OE_N HIGH).
Figure 10 shows the extended control logic and Table 4
the truth table for the extended control.
Figure 10.
Extended Control Function
Table 4. Extended Control
Hi-Z
SUSPND CONFIG SPEED_N
Function
0
No 1.5k
Pull-up
FS
USB Mode, Default
State
0
1
0
1.5k
Pull-up
FS
USB Mode
0
1
No 1.5k
Pull-up
LS
USB Mode
0
1
Pull-up On After Detecting SE0
FS
Suspend, Conditional
Pull-up
0
1
0
No 1.5k
Pull-up
FS
Suspend
0
1
0
1.5k
Pull-up
FS
Suspend
0
1
0
1
No 1.5k
Pull-up
LS
Suspend
0
1
No 1.5k
Pull-up, 125k Pull-up
Connected
USB Rx Mode &
RWPU On
1
X
VP, VM, D+, D-, RCV High
Impedance, SW1 and SW2 Open
Hi-Z Mode
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
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