TS256M~2GUSD
•
Bus Signal Levels
microSD Memory Card
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, the card input and output voltages shall be within the
following specified ranges for any V
DD
of the allowed voltage range:
Parameter
Output HIGH voltage
Output LOW voltage
Input HIGH voltage
Input LOW voltage
Symbol
V
OH
V
OL
V
IH
V
IL
Min.
0.75* V
DD
Max.
0.125* V
DD
Unit
V
V
V
V
Remark
I
OH
= -100
μA
@V
DD
min
I
OL
= 100
μA
@V
DD
min
0.625* V
DD
V
SS
– 0.3
V
DD
+ 0.3
0.25* V
DD
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