TS2GCF300 Transcend Information. Inc., TS2GCF300 Datasheet - Page 18

• Manufacturer Part Number: TS2GCF300
• Description: 300x Compactflash Card
• Manufacturer: Transcend Information. Inc.

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Transcend Information Inc.
T
T
S
S
S
4
4
4
G
G
G
Printed Circuit Board (PCB) Trace Requirements for Ultra DMA
Ultra DMA Mode Cabling Requirement
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On any PCB for a host or device supporting Ultra DMA:
The longest D[15:00] trace shall be no more than 0.5" longer than either STROBE trace as measured from
the IC pin to the connector.
The shortest D[15:00] trace shall be no more than 0.5" shorter than either STROBE trace as measured from
the IC pin to the connector.
Operation in Ultra DMA mode requires a crosstalk suppressing cable. The cable shall have a grounded line
between each signal line.
For True IDE mode operation using a cable with IDE (ATA) type 40 pin connectors it is recommended that the
host sense the cable type using the method described in the ANSI INCITS 361-2002 AT Attachment - 6
standard, to prevent use of Ultra DMA with a 40 conductor cable.
1
1
1
6
6
6
G
G
G
C
C
C
F
F
F
3
3
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Table: Ultra DMA Termination with Pull-up or Pull down Example
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0
0
0
0
0
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300X CompactFlash Card