HB289048C4 View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

Manufacturer

HB289048C4

CompactFlash™ 48 MByte/32 MByte/16 MByte/8 MByte

Hitachi -> Renesas Electronics 

HB289048C4/289032C4/289016C4/289008C4

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

—

—

ms

0.1

—

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 can’t be operated in this case.

• Notice that the card removal should be executed after card internal operations completed.

• 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.

64

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