T
T
T
S
S
S
1
1
1
6
6
6
G
G
G
~
~
~
6
6
6
4
4
4
G
G
G
C
C
C
F
F
F
4
4
4
0
0
0
0
0
0
400X CompactFlash Card
Transcend Information Inc.
V1.0
8
Input Leakage Current
Note: In Table 1 below, x refers to the characteristics described in table 2. For example, I1U indicates a pull-up resistor with a type 1
input characteristic.
Table 1: Input Leakage Current
Type
Parameter
Symbol
Conditions
MIN
TYP
MAX
Units
IxZ
Input Leakage Current
IL
Vih = Vcc / Vil = Gnd
-1
1
µ
A
IxU
Pull-Up Resistor
RPU1
Vcc = 5.0V
50k
500k
Ohm
IxD
Pull-Down Resistor
RPD1
Vcc = 5.0V
50k
500k
Ohm
Note: The minimum pull-up resistor resistance meets the PCMCIA PC Card specification of 10k ohms but is intentionally higher in the
CompactFlash Specification to reduce power use.
Input Characteristics
Table 2: Input Characteristics
MIN
TYP
MAX
MIN
TYP
MAX
Type
Parameter
Symbol
VCC = 3.3 V
VCC = 5.0 V
Units
1
Input Voltage
CMOS
Vih
Vil
2.4
0.6
4.0
1
0.8
Volts
2
Input Voltage
CMOS
Vih
Vil
1.5
0.6
2.0
0.8
Volts
3
Input Voltage
CMOS Schmitt
Trigger
Vth
Vtl
1.8
1.0
2.8
2.0
Volts
Notes: 1) The host provides a logic output high voltage for a CMOS load of .9 x VCC. For a 5 volt product, this translates to .9 x
4.5 = 4.05 volts minimum Voh.
Output Drive Type
Note: In Table 3 below, x refers to the characteristics described in Table 4. For example, OT3 refers to Totem pole output with a type
3 output drive characteristic.
Table 3: Output Drive Type
Type
Output Type
Valid Conditions
OTx
Totempole
Ioh & Iol
OZx
Tri-State N-P Channel
Ioh & Iol
OPx
P-Channel Only
Ioh Only
ONx
N-Channel Only
Iol Only
