Transcend Information TS2GSDG, TS1GSDG manual Bus Signal Levels, TS1G~2GSDG, Secure Digital Card

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•Bus Signal Levels

TS1G~2GSDG

Secure Digital Card

 

 

 

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, the card input and output voltages shall be within the following specified ranges for any VDD of the allowed voltage range:

Parameter

Symbol

Min.

Max.

Unit

Remark

Output HIGH voltage

VOH

0.75* VDD

 

V

IOH = -100 μA @VDD min

Output LOW voltage

VOL

 

0.125* VDD

V

IOL = -100 μA @VDD min

Input HIGH voltage

VIH

0.625* VDD

VDD + 0.3

V

 

Input LOW voltage

VIL

VSS – 0.3

0.25* VDD

V

 

Transcend Information Inc.

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Contents Features PlacementTS1G~2GSDG Secure Digital CardArchitecture Bus Signal Line Load Power Supply VoltageBus Operating Conditions General Bus Signal Levels Bus Timing tTLHtISU tTHLtODLY Reliability and Durability Temperature