Reference Information
14-36
Samsung Electronics
14-3-3 Memory Stick – The new size that is compatible up to 32GB
The next generation high-capacity memory stick size, ‘MemoryStick PRO’ – comes standard with copyright
protection technology, MagicGate, built-in. Compatible up to 32GB 256MB/512MB/1GB products will be on
the market in March 2003. Another feature of Memory Stick is high-speed data transfer.
The transfer method will change from the existing serial transfer method to a parallel transfer method.
It has a transfer speed of 20MB/sec which is 4 times faster than the existing speed.
1)
LED-type Memory Stick
Lexar Media Products During the data access process, the LED turns on and off.
Research on preventing damage due to dislodgment from the slot.
14-3-4 SD Card- Many compatible products.
As of January 2003, the products (total 393 models) of 59 companies are compatible with SD Memory Card.
It features standard copyright protection technology. Adapted copyright protection technology is CPRM
(Content Protection for Recordable Media) which is being used for DVD’s.
SD Memory Card slots are compatible with MMC. SD Memory Card has the same length and width as MMC
but with increased thickness. Thickness is increased so as to stack the chips for increased capacity.
To increase speed, the number of discs were increased more than MMC and so the transfer method was
changed from serial to parallel. There is no regulation on SD memory card speed capacity, therefore there are
faster ones and slower ones on the market. Currently, Matsushita SD Card transfer speed is about 10MB/sec.
It is predicted that in the latter half of 2003, improving the controller will increase the speed up to 20MB/sec.
1) Comparison of the number of MMC and SD Memory card discs
MMC had 7 discs. But SD now has 9 discs.
This is in order to increase speed by changing the
transfer method from serial to parallel.
LED on/off
In access mode
Not in access mode
MMC
SD Memory Card
Data Line..........2
Data Line..........4
Fig. 14-26
Fig. 14-27
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Страница 46: ...4 16 Disassembly and Reassembly Samsung Electronics MEMO ...
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Страница 88: ...PCB Diagrams 9 4 Samsung Electronics CONDUCTOR SIDE Fuse 1 25A 32V ...
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Страница 114: ...Schematic Diagrams 10 20 Samsung Electronics This Document can not be used without Samsung s authorization MEMO ...
Страница 128: ...Troubleshooting 12 8 Samsung Electronics MEMO ...
Страница 140: ...Circuit Operating Description 13 12 Samsung Electronics MEMO ...
Страница 184: ...Reference Information 14 44 Samsung Electronics MEMO ...