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參數(shù)資料
| 型號(hào)： | 7P800ATA2514C25 |
| 英文描述： | Flash Memory Card(800M位閃速存儲(chǔ)器卡) |
| 中文描述： | 閃存卡（800米位閃速存儲(chǔ)器卡） |
| 文件頁數(shù)： | 56/62頁 |
| 文件大小： | 626K |
| 代理商： | 7P800ATA2514C25 |
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7PxxxATA25xxC25
June 2000 Rev. 1 – ECO #12936
56
White Electronic Designs Corporation
(508) 366-5151
Power on Reset Characteristics
All card status are reset automatically when V
CC
voltage goes over about 2.3 V.
Parameter
Symbol
Min
Typ
Max
Unit
Test conditions
-CE setup time
tsu(VCC)
100
—
—
ms
VCC rising up time
tpr
0.1
—
100
ms
Power on Reset Timing
Attention for Card Use
In the reset or power off, all register information is cleared.
All card status are cleared automatically when Vcc voltage turns below about 2.5V.
Notice that the card insertion/removal should not be executed durning host is active, if the card is used
in true IDE mode.
After the card hard reset, soft reset, or power on reset, the card cannot access during +READY pin is
"low" level.
Please notice that the card insertion/removal should be executed after card internal operations are
completed (status register bit 7 turns from "1" to "0").
Before the card insertion Vcc cannot be supplied to the card. After confirmation that –CD1, -CD2 pins
are inserted, supply Vcc to the card.
– OE must be kept at the Vcc level during power on reset in memory card mode and I/O card mode.
– OE must be kept constantly at the GND level in True IDE mode.
Unused pins of data bus (D0 to D15) signals should not be opened.
t
su(Vcc)
t
pr
Vcc
-CE1, -CE2
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