ATA20 White Electronic Designs Corporation, ATA20 Datasheet - Page 59

• Manufacturer Part Number: ATA20
• Description: Density = 8MB-160MB ;; Memory Device = Hitachi Flash ;; Organization = X16/x8 ;; Speed (ns) = 250 ;; Volt = 3/5
• Manufacturer: White Electronic Designs Corporation

June 2000 Rev. 5 – ECO #12935
Power on Reset Characteristics
All card status are reset automatically when V
Parameter
-CE setup time
VCC rising up time
Power on Reset Timing
Attention for Card Use
7PxxxATA20xxC25
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.
After the card hard reset, soft reset, or power on reset, the card cannot access during +READY pin is
Please notice that the card insertion/removal should be executed after card internal operations are
Unused pins of data bus (D0 to D15) signals should not be opened.
"low" level.
completed (status register bit 7 turns from "1" to "0").
V
and –CD2 pins are inserted V
card is completely inserted to supply V
-OE must be kept at the V
constantly at the GND level in True IDE Mode.
CC
should not be supplied to the card until it is completely inserted. After confirmation that the –CD1
-CE1, -CE2
CC
level during power on reset in Memory Card Mode. –OE must be kept
CC
Symbol
tsu(VCC)
tpr
Vcc
can be supplied to the card. Only use drives that will wait until the
CC
.
CC
voltage goes over about 2.3 V.
t
pr
100
Min
0.1
59
t
su(Vcc)
Typ
—
—
White Electronic Designs Corporation [phone]
Max
—
100
Unit
ms
ms
Test conditions