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參數(shù)資料
| 型號： | USB2227-NU-11 |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 存儲控制器/管理單元 |
| 中文描述： | IDE COMPATIBLE, FLASH MEMORY DRIVE CONTROLLER, PQFP128 |
| 封裝： | 14 X 14 MM, 1 MM HEIGHT, ROHS COMPLIANT, VTQFP-128 |
| 文件頁數(shù)： | 6/25頁 |
| 文件大小： | 399K |
| 代理商： | USB2227-NU-11 |
4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs
Datasheet
SMSC USB2227/USB2228
14
Revision 1.93 (11-01-07)
DATASHEET
SD_nWP
25
IPD
SD Write Protected:
This pin is an input signal with an internal weak pull-down.
This pin has an internally controlled weak pull-down resistor.
USB INTERFACE
USBDM
USBDP
87
88
IO-U
USB Bus Data:
These pins connect to the USB bus data signals.
RBIAS
98
I
USB Transceiver Bias:
A 12.0k
Ω, ± 1.0% resistor is attached from VSSA to this pin, in
order to set the transceiver’s internal bias currents.
ATEST
99
AIO
Analog Test:
This signal is used for testing the analog section of the chip and
should be connected to VDDA33 for normal operation.
VDD18PLL
101
1.8v Power for the PLL
VSSPLL
104
PLL Ground Reference:
Ground Reference for 1.8v PLL power
VDDA33
89
3.3v Analog Power
VSSA
86
Analog Ground Reference:
Analog Ground Reference for 3.3v Analog Power.
XTAL1/
CLKIN
102
ICLKx
Crystal Input/External Clock Input:
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.
XTAL2
103
OCLKx
Crystal Output:
24Mhz Crystal
This is the other terminal of the crystal, or left open when an
external clock source is used to drive XTAL1/CLKIN. It may not
be used to drive any external circuitry other than the crystal
circuit.
MEMORY/IO INTERFACE
MD[7:0]
12
11
10
9
8
7
6
5
I/O8PU
Memory Data Bus:
When ROMEN bit of GPIO_IN1 register = 0, these signals are
used to transfer data between the internal CPU and the external
program memory.
These pins have internally controlled weak pull-up resistors.
SYMBOL
128-PIN
VTQFP
BUFFER
TYPE
DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| USB2228-NU-03 | |
| USB2228-NE-03 | |
| USB2240-AEZG-XX | |
| USB2240I-AEZG-XX | |
| USB2241-AEZG-XX | |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| USB2227-NU-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 |
| USB2228 | 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 |
| USB2228AHZS07 | 制造商:Rochester Electronics LLC 功能描述: 制造商:SMSC 功能描述: |
| USB2228-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 |
| USB2228-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 |
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