TS256MBCF45I-D Transcend Information. Inc., TS256MBCF45I-D Datasheet - Page 17

• Manufacturer Part Number: TS256MBCF45I-D
• Description: Transcend Industrial Cf Card
• Manufacturer: Transcend Information. Inc.

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Transcend Information Inc.
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1
r
1
r
1
a
a
a
2
2
2
n
n
n
8
8
8
s
Printed Circuit Board (PCB) Trace Requirements for Ultra DMA
Ultra DMA Mode Cabling Requirement
s
M
s
M
M
c
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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.
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B
B
e
e
e
n
n
n
~
~
~
d
d
d
8
8
8
G
G
G
I
I
B
I
B
B
n
n
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Table: Ultra DMA Termination with Pull-up or Pull down Example
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u
u
u
s
s
s
t
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t
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a
l
l
l
C
C
C
F
F
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