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•
Bus Signal Levels
As the bus can be supplied with a variable supply voltage, all signal levels are related to the supply voltage.
To meet the requirements of the JEDEC specification JESD8-1A and JESD8-7, the card input and output voltages shall be
within the following specified ranges for any V
Parameter
Output HIGH voltage
Output LOW voltage
Input HIGH voltage
Input LOW voltage
Transcend Information Inc.
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of the allowed voltage range:
DD
Symbol
Min.
V
0.75* V
OH
V
OL
V
0.625* V
IH
V
V
IL
SS
4~32GB High Capacity Secure Digital Card
Max.
DD
0.125* V
DD
V
+ 0.3
DD
DD
– 0.3
0.25* V
DD
5
Unit
Remark
V
I
= -100 μA @V
OH
V
I
= -100 μA @V
OL
V
V
min
DD
min
DD
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