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參數(shù)資料
| 型號： | USB97C223 |
| 廠商： | SMSC Corporation |
| 英文描述： | capacitor Selection for Internal Regulator Output Pins |
| 中文描述： | 電容的選擇內(nèi)部穩(wěn)壓器輸出引腳 |
| 文件頁數(shù)： | 11/59頁 |
| 文件大?。?/td> | 385K |
| 代理商： | USB97C223 |
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SMSC DS – USB97C201
Page 11
Rev. 03/25/2002
PRELIMINARY
USB INTERFACE
IO-U
These pins connect to the USB bus data
signals.
This pin provides the ability to supplement the
internal filtering of the transceiver with an
external network, if required.
A
9.09
Kohm precision resistor is attached
from ground to this pin to set the transceiver’s
internal bias currents.
A precision 1.5Kohm precision resistor is
attached to this pin from a 3.3V supply.
IO-U
These pins connect to the USB- and USB+
pins through
31.6
ohm series resistors.
USB Bus
Data
USB
Transceiver
Filter
USB
Transceiver
Bias
Termination
Resistor
Full Speed
USB Data
USB-
USB+
LOOPFLTR
RBIAS
RTERM
FS-
FS+
MEMORY/IO INTERFACE
IO12
These signals are used to transfer data
between the internal CPU and the external
program memory.
O12
These signals address memory locations
within the external memory.
O12
Program Memory Write; active low
Memory Data
Bus
MD[7:0]
Memory
Address Bus
Memory Write
Strobe
Memory Read
Strobe
IO Read
Strobe
IO Write
Strobe
MA[15:0]
nMWR
nMRD
O12
Program Memory Read; active low
nIOR
O12
XDATA space Read; active low
nIOW
O12
XDATA space Write; active low
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| USB97C223-NE | 制造商:SMSC 制造商全稱:SMSC 功能描述:Bus Powered USB 2.0 Flash Media Controller |
| USB97C223-NU | 制造商:SMSC 制造商全稱:SMSC 功能描述:Bus Powered USB 2.0 Flash Media Controller |
| USB97C242 | 制造商:SMSC 制造商全稱:SMSC 功能描述:USB 2.0 Flash Drive Controller |
| USB97C242-MN | 制造商:SMSC 制造商全稱:SMSC 功能描述:USB 2.0 Flash Drive Controller |
| USB97C242-MN-03 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:SMSC 功能描述: |
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