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| 型號： | USB2242-AEZG-XX |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 存儲控制器/管理單元 |
| 中文描述： | FLASH MEMORY DRIVE CONTROLLER, QCC36 |
| 封裝： | 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-36 |
| 文件頁數(shù)： | 11/51頁 |
| 文件大小： | 881K |
| 代理商： | USB2242-AEZG-XX |
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Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
Datasheet
SMSC USB224x
19
Revision 2.0 (10-14-09)
DATASHEET
Chapter 6 Pin Descriptions
This section provides a detailed description of each signal. The signals are arranged in functional
groups according to their associated interface. The pin descriptions are applied when using the internal
default firmware and can be referenced in Chapter 7, "Pin Configurations," on page 25. Please
reference Chapter 2, "Acronyms," on page 7 for a list of the acronyms used.
The “n” symbol in the signal name indicates that the active, or asserted, state occurs when the signal
is at a low voltage level. When “n” is not present in the signal name, the signal is asserted at the high
voltage level.
The terms assertion and negation are used exclusively. This is done to avoid confusion when working
with a mixture of “active low” and “active high” signals. The term assert, or assertion, indicates that a
signal is active, independent of whether that level is represented by a high or low voltage. The term
negate, or negation, indicates that a signal is inactive.
6.1
USB224x 36-Pin QFN Pin Descriptions
Table 6.1 USB224x 36-PiN QFN Pin Descriptions
SYMBOL
USB22
40/40i
USB22
41/41i
USB22
42/42i
USB22
44/44i
BUFFER
TYPE
DESCRIPTION
xD-PICTURE CARD (xD) INTERFACE (APPLIES ONLY TO USB2240/USB2240i)
xD_D[7:0]
20
23
25
30
4
5
7
8
I/O12PD
xD Data
These bi-directional data signals have weak internal
pull-down resistors.
xD_nWP
9
O12PD
xD Write Protect
This pin is an active low write protect signal for the xD
device and has a weak pull-down resistor that is
permanently enabled.
xD_ALE
10
O12PD
xD Address Strobe
This pin is an active high Address Latch Enable signal
for the xD device and has a weak pull-down resistor
that is permanently enabled.
xD_CLE
11
O12PD
xD Command Strobe
This pin is an active high Command Latch Enable
signal for the xD device and has a weak pull-down
resistor that is permanently enabled.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| USB2244 | 制造商:SMSC 制造商全稱:SMSC 功能描述:Ultra Fast USB 2.0 SD/MMC Flash Media Controller |
| USB2244-AEZG-04 | 功能描述:USB 接口集成電路 Ultra Fast USB 2.8 Flash Media 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 |
| USB2244-AEZG-05 | 功能描述:USB 接口集成電路 Ultra Fast USB 2.0 Flash Media CTRL 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 |
| USB2244-AEZG-06 | 功能描述:USB 接口集成電路 Ultra Fast USB 2.0 Flash Media 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 |
| USB2244I | 制造商:SMSC 制造商全稱:SMSC 功能描述:Ultra Fast USB 2.0 SD/MMC Flash Media Controller |
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