1.
x refers to the characteristics described in Table
14 For example, I1U indicates a pull up resistor with a type 1 input
characteristic.
Table 14: Input characteristics
Type
Parameter
Symbol
Min.
Typ.
Vcc = 3.3V
Max.
Min. Typ. Max.
Vcc = 5.0V
Units
1
2
3
Input Voltage CMOS
Input Voltage CMOS
Input Voltage CMOS Schmitt
Trigger
V IH
V IL
V IH
V IL
V TH
V TL
2.0
-0.3
2.0
-0.3
2.0
-0.3
5.5
0.8
5.5
0.8
5.5
0.8
2.0
-0.3
2.0
-0.3
2.0
-0.3
5.5
0.8
5.5
0.8
5.5
0.8
V
V
V
Table 15: Output Drive Type (1)
Type
Otx
Ozx
Opx
Onx
Output Type
Totempole
Tri-State N-P Channel
P-Channel Only
N-Channel Only
Valid Conditions
I OH & I OL
I OH & I OL
I OH only
I OL only
1.
x refers to the characteristics described in Table
14 For example, OT3 refers to totem pole output with a type 3 output drive
characteristic.
Table 16: Output Drive Characteristics
Type
1
2
3
X
Parameter
Output Voltage
Output Voltage
Output Voltage
Tri-State
Leakage Current
Symbol
V OH
V OL
V OH
V OL
V OH
V OL
I OZ
Conditions
I OH = -1mA
I OL = 4mA
I OH = -1mA
I OL = 4mA
I OH = -1mA
I OL = 4mA
V OL = GND
V OH = Vcc
Min.
2.4
2.4
2.4
-10
Max.
0.45
0.45
0.45
10
Units
V
V
V
μA
5.3 Additional requirements for CompactFlash TM Advanced Timing mode
When operating in a CompactFlash TM Advanced timing mode (PIO5, 6 or MDMA 3, 4), the following conditions must
be respected:
Only one CompactFlash TM Card must be connected to the CompactFlash TM bus.
The load capacitance (cable included) for all signals must be lower than 40pF.
The cable length must be lower than 0.15m (6 inches). The cable length is measured from the Card
connector to the host controller. 0.46m (18 inches) cables are not supported.
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.00
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
C-440_data_sheet_CF-HxBU_Rev100.doc
Page 17 of 102
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