參數(shù)資料
型號: HB28J512MM3
廠商: Renesas Technology Corp.
英文描述: MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
中文描述: 多媒體32 MByte/64 MByte/128 MByte/256 MByte/512字節(jié)
文件頁數(shù): 78/91頁
文件大小: 526K
代理商: HB28J512MM3
HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
Rev.0.02, Sep.15.2004, page 78 of 89
Short Cut Protection
The MultiMediaCards can be inserted/removed into/from the bus without damage.
If one of the supply pins (V
CC
or V
SS
) 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.
V
CC
V
SS
CMD, DAT
V
CC
not connected
V
SS
not connected
card
controller
Improper Power Supply
Every MultiMediaCard output withstands shortcuts to either supply.
V
CC
V
SS
CMD, DAT
connector
card
controller
I
short
I
short
w
Short Cut Protection
Unintentional Power Down
If the card removal (unintentional power down) is occurred during card operation (read/write), the
MultiMediaCard would be broken.
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