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參數(shù)資料
| 型號(hào)： | USB2227-NU-11 |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 存儲(chǔ)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)： | 10/25頁 |
| 文件大?。?/td> | 399K |
| 代理商： | USB2227-NU-11 |
4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs
Datasheet
SMSC USB2227/USB2228
18
Revision 1.93 (11-01-07)
DATASHEET
Notes:
Hot-insertion capable card connectors are required for all flash media. It is required for SD
connector to have Write Protect switch. This allows the chip to detect MMC card.
nMCE is normally asserted except when the 8051 is in standby mode.
VDD18 (Pin 106) and VDD18PLL (Pin 101) must have a 10uF +/-20% Low-ESR (equivalent series
resistance) <0.1 ohm bypass capacitor to VSSA. These capacitors must be as close to these pins
as possible.
5.2
Buffer Type Descriptions
GPIO[15:12]
90
91
92
93
I/O8
General Purpose I/O:
These pins may be used either as input, or output.
nRESET
115
IS
RESET input:
This active low signal is used by the system to reset the chip.
The active low pulse should be at least 1
μs wide.
nTEST[1:0]
95
96
I
TEST input:
These signals are used for testing the chip. User should
normally tie them high externally, if the test function is not used.
DIGITAL POWER, GROUNDS, and NO CONNECTS
VDD18
49
106
1.8v Digital Core Power:
+1.8V Core power
All VDD18 pins must be connected together on the circuit board.
VDD33
3
43
80
100
108
3.3v Power & Voltage Regulator Input:
3.3V Power & Regulator Input.
pins 100 & 108 supply 3.3V power to the internal 1.8V
regulators.
VSS
15
16
47
84
85
97
112
Ground:
Ground Reference
Table 5.1 USB2227/USB2228 Buffer Type Descriptions
BUFFER
DESCRIPTION
I
Input
IPU
Input with internal weak pull-up resistor.
IPD
Input with internal weak pull-down resistor.
IS
Input with Schmitt trigger
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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