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HB288064MM1 Datasheet, PDF (69/79 Pages) Hitachi Semiconductor – MultiMediaCard 64 MByte
HB288064MM1
Short Cut Protection
The HB288064MM1 can be inserted/removed into/from the bus without damage. If one of the supply pins
(VCC or VSS) is not connected properly, then the current is drawn through a data line to supply the card.
Naturally the card can not operate properly under this conditions.
VCC
VCC not connected
CMD, DAT
VSS not connected
VSS
Improper Power Supply
Every HB288064MM1 output withstands shortcuts to either supply.
card
controller
VCC
Ishort
CMD, DAT
Ishort
VSS
connector
Short Cut Protection
card
controller
69