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參數(shù)資料
| 型號： | USB2227 |
| 廠商： | SMSC Corporation |
| 英文描述： | 4TH GENERATION USB2.0 FLASH MEDIA CONTROLLER WITH INTEGRATED CARD POWER FETS |
| 中文描述： | 第4代USB2.0閃存介質(zhì)控制器，它集成卡功率場效應(yīng)管 |
| 文件頁數(shù)： | 16/26頁 |
| 文件大?。?/td> | 919K |
| 代理商： | USB2227 |
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4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs
Datasheet
Revision 1.77 (06-13-05)
16
SMSC USB2227/USB2228
DATASHEET
MS
Card Insertion
MS_INS
IPU
This pin is the card detection signal from the MS device
to indicate, if the device is inserted.
This pin has an internally controlled weak pull-up
resistor.
MS
System CLK
MS_SCLK
O8
This pin is an output clock signal to the MS device.
The clock frequency is software configurable.
SD INTERFACE
SD
Data3-0
SD_DAT[3:0]
I/O8PU
These are bi-directional data signals.
These pins have internally controlled weak pull-up
resistors.
SD Clock
SD_CLK
O8
This is an output clock signal to SD/MMC device.
The clock frequency is software configurable.
SD Command
SD_CMD
I/O8PU
This is a bi-directional signal that connects to the CMD
signal of SD/MMC device.
This pin has an internally controlled weak pull-up
resistor.
SD
Write Protected
SD_nWP
IPD
This pin is an input signal with an internal weak pull-
down.
This pin has an internally controlled weak pull-down
resistor.
USB INTERFACE
USB Bus Data
USBDM
USBDP
IO-U
These pins connect to the USB bus data signals.
USB Transceiver
Bias
RBIAS
I
A 12.0k
,
±
1.0% resistor is attached from VSSA to this
pin, in order to set the transceiver’s internal bias
currents.
Analog Test
ATEST
AIO
This signal is used for testing the analog section of the
chip and should be connected to VDDA33 for normal
operation.
1.8v PLL Power
VDD18PLL
1.8v Power for the PLL
PLL Ground
Reference
VSSPLL
Ground Reference for 1.8v PLL power
3.3v Analog Power
VDDA33
3.3v Analog Power
Analog Ground
Reference
VSSA
Analog Ground Reference for 3.3v Analog Power.
Crystal
Input/External Clock
Input
XTAL1/
CLKIN
ICLKx
24Mhz Crystal or external clock input.
This pin can be connected to one terminal of the crystal
or can be connected to an external 24Mhz clock when
a crystal is not used.
Note:
The ‘MA[2:0] pins will be sampled while
nRESET is asserted, and the value will be
latched upon nRESET negation. This will
determine the clock source and value.
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| USB2227-NE-XX | 4TH GENERATION USB2.0 FLASH MEDIA CONTROLLER WITH INTEGRATED CARD POWER FETS |
| USB2227-NU-XX | 4TH GENERATION USB2.0 FLASH MEDIA CONTROLLER WITH INTEGRATED CARD POWER FETS |
| USB2228 | 4TH GENERATION USB2.0 FLASH MEDIA CONTROLLER WITH INTEGRATED CARD POWER FETS |
| USB2228-NE-XX | 4TH GENERATION USB2.0 FLASH MEDIA CONTROLLER WITH INTEGRATED CARD POWER FETS |
| USB2228-NU-XX | 4TH GENERATION USB2.0 FLASH MEDIA CONTROLLER WITH INTEGRATED CARD POWER FETS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| USB2227_0503 | 制造商:SMSC 制造商全稱:SMSC 功能描述:Flash Card Reader Media Power Considerations |
| USB2227_06 | 制造商:SMSC 制造商全稱:SMSC 功能描述:4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs |
| USB2227-AHZS-XX | 制造商:SMSC 制造商全稱:SMSC 功能描述:4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs |
| USB2227-NE-03 | 功能描述:USB 接口集成電路 USB 2.0 Flash Media Card RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| USB2227-NE-05 | 功能描述:USB 接口集成電路 USB 2.0 Flash Media Card RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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