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Additional information

The MemoryCard connector

	Memory Card connector specifications Pin N° signal name direction logic function 1 DAT in positive Serial Output data (open drain) 2 CMD out positive Serial Command data 3 +7V - - +7.6V CD-Rom Drive Power 4 GND - - Signal Ground 5 +3V - - +3.5V System Power 6 SEL- out negative Pad/memory select 7 CLK- out negative Serial Clock 8 - - - No use 9 ACK- in negative Acknowledge (open drain)

As you can see the MemoryCard needs two different voltages. I know this is not always true, but the author checked out four 15 block cards and 3 of them need 7.6V.

The LM317

The LM317 is a standard element. The additionl characters can be ignored. You can use an LM317T as well as an LM317Q or an LM317LZ.

For more information on LM317 have a look at www.national.com and get correct PDF-files.

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