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HB288800A5 Datasheet, PDF (64/66 Pages) Hitachi Semiconductor – FLASH ATA Card | |||
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HB288800/640/448/320/256/192/160/128/096/064/032A5
Power on Reset Characteristics
All card status are reset automatically when VCC voltage goes over about 2.3 V.
Parameter
-CE setup time
VCC rising up time
Symbol
tsu(VCC)
tpr
Min
Typ Max Unit
100
â
â
ms
0.1
â
100
ms
Test conditions
Power on Reset Timing
Vcc
-CE1, -CE2
tpr
tsu(vcc)
Attention for Card Use
⢠In the reset or power off, all register informations are 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 during host is active, if the card is used in
True IDE mode.
⢠After the card hard reset, soft reset, or power on reset, ATA reset, command applied the card cannot
access during +RDY/-BSY pin is "low" level. Flash card canât be operated in this case.
⢠Card removal or power off should not be done during internal operations. When the removal or power off
occurred during internal operation, there is the possibility that data are lost.
⢠Before the card insertion VCC can not 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.
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