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8
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G
~
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1
1
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6
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600X CompactFlash Card
Transcend Information Inc.
V1.0
16
Input Power
Input Characteristics for UDMA mode >4
In UDMA modes greater than 4, the following characteristics apply. Voltage output high and low values shall be met
at the source connector to include the effect of series termination.
Table: Input Characteristics (UDMA Mode > 4)
Parameter Symbol MIN MAX Units
DC supply voltage to drivers V
DD3
3.3 –8% 3.3% + 8%
Volts
Low to high input threshold V+ 1.5 2.0 Volts
High to low input threshold V- 1.0 1.5 Volts
Difference between input thresholds:
((V+
current value
) - (V-
current value
))
V
HYS
320 Volts
Average of thresholds:
((V+
current value
) + (V-
current value
))/2
V
THRAVG
1.3 1.7 Volts
Output Drive Characteristics for UDMA mode > 4
In UDMA modes greater than 4, the characteristics specified in the following table apply. Voltage output high and low
values shall be met at the source connector to include the effect of series termination.
Table: Output Drive Characteristics (UDMA Mode > 4)
Parameter
Symbol
MIN
MAX
Units
DC supply voltage to drivers V
DD3
3.3 –8% 3.3% + 8%
Volts
Voltage output high at -6 mA to +3 mA (at VoH2 the
output shall
be able to supply and sink current toVDD3)
V
oH2
V
DD3
–0.51
V
DD3
+0.3
Volts
Voltage output low at 6 mA V
oL2
0.51 Volts
Notes:
1) I
oLDASP
shall be 12 mA minimum to meet legacy timing and signal integrity.
2) I
oH
value at 400 A is insufficient in the case of DMARQ that is pulled low by a 5.6 k resistor.
3) Voltage output high and low values shall be met at the source connector to include the effect of series termination.
4) A device shall have less than 64 A of leakage current into a 6.2 K pull-down resistor while the INTRQ signal is in the released
state.