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參數(shù)資料
| 型號： | USB2230 |
| 廠商： | SMSC Corporation |
| 英文描述： | 5TH GENERATION HI-SPEED USB FLASH MEDIA & IrDA CONTROLLER WITH INTEGRATED CARD POWER FETs |
| 中文描述： | 第五代高速USB閃存介質(zhì) |
| 文件頁數(shù)： | 17/27頁 |
| 文件大小： | 1008K |
| 代理商： | USB2230 |
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5th Generation Hi-Speed USB Flash Media & IrDA Controller with Integrated Card Power FETs
Datasheet
SMSC USB2229/USB2230
17
Revision 1.2 (02-21-05)
DATASHEET
Crystal Output
XTAL2
OCLKx
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
Memory Data Bus
MD[7:0]
IO8
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.
Memory Address
Bus
MA[15:3]
O8
These signals address memory locations within the
external memory.
Memory Address
Bus
MA3/
TX_POL
I/O8PU
MA3 Addresses memory locations within the external
memory.
During nRESET assertion, TX_POL will select the
operating polarity of the IR LED (active high or active
low) and the weak pull-up resistor will be enabled.
When nRESET is negated, the value on this pin will be
internally latched and this pin will revert to MA3
functionality, the internal pull-up will be disabled.
Memory Address
Bus
MA2/
SEL_CLKDRV
I/O8PD
MA2 Addresses memory locations within the external
memory.
SEL_CLKDRV. During nRESET assertion, this pins will
select the operating clock mode (crystal or externally
driven clock source), and a weak pull-down resistor is
enabled. When nRESET is negated, the value will be
internally latched and this pin will revert to MA2
functionality, the internal pull-down will be disabled.
‘0’ = Crystal operation (24MHz only)
‘1’ = Externally driven clock source (24MHz or 48MHz)
Note:
If the latched value is ‘1’, then the MA2 pin is
tri-stated when the following conditions are
true:
1. IDLE bit (PCON.0) is 1.
2. INT2 is negated
3. SLEEP bit of CLOCK_SEL is 1.
If the latched value is ‘0’, then the MA2 pin will function
identically to the MA[15:3] pins at all times (other than
during nRESET assertion).
Table 6.1 USB2229/USB2230 Pin Descriptions
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| USB2230-NE-03 | 5TH GENERATION HI-SPEED USB FLASH MEDIA & IrDA CONTROLLER WITH INTEGRATED CARD POWER FETs |
| USB2230-NU-03 | 5TH GENERATION HI-SPEED USB FLASH MEDIA & IrDA CONTROLLER WITH INTEGRATED CARD POWER FETs |
| USB3300 | CONN/14 POS HDR SHRD DBL STR |
| USB3300-EZK | HI SPEED USB HOST OR DEVICE PHY WITH ULPI LOW PIN INTERFACE |
| USB3450 | HI-SPEED USB HOST OR DEVICE PHY WITH UTMI+INTERFACE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| USB2230-NE-02 | 功能描述:USB 接口集成電路 Hi Spd USB 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 |
| USB2230-NE-03 | 制造商:SMSC 制造商全稱:SMSC 功能描述:5TH GENERATION HI-SPEED USB FLASH MEDIA & IrDA CONTROLLER WITH INTEGRATED CARD POWER FETs |
| USB2230-NE-XX | 制造商:SMSC 制造商全稱:SMSC 功能描述:5th Generation Hi-Speed USB Flash Media and IrDA Controller with Integrated Card Power FETs |
| USB2230-NU-02 | 功能描述:USB 接口集成電路 Hi Spd USB 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 |
| USB2230-NU-03 | 制造商:SMSC 制造商全稱:SMSC 功能描述:5TH GENERATION HI-SPEED USB FLASH MEDIA & IrDA CONTROLLER WITH INTEGRATED CARD POWER FETs |
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