TS2GCF300 Transcend Information. Inc., TS2GCF300 Datasheet - Page 17

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

T
Transcend Information Inc.
T
T
S
S
S
-IORD (-HDMARDY,HSTROBE)
-IOWR (STOP)
-CS0, -CS1
A00, A01, A02
-DMACK
D15 through D00
DMARQ
INTRQ
IORDY (-DDMARDY, DSTROBE)
-RESET
NOTE − Only those signals requiring termination are listed in this table. If a signal is not listed, series
termination is not required for operation in an Ultra DMA mode. Shows signals also requiring a pull-up or
pull-down resistor at the host. The actual termination values should be selected to compensate for transceiver
and trace impedance to match the characteristic cable impedance.
4
Ultra DMA Electrical Requirements
4
4
G
G
G
Host and Card signal capacitance limits for Ultra DMA operation
The host interface signal capacitance at the host connector shall be a maximum of 25 pF for each signal as measured at
1 MHz.
The card interface signal capacitance at the card connector shall be a maximum of 20 pF for each signal as measured at
1 MHz.
Series termination required for Ultra DMA operation
Series termination resistors are required at both the host and the card for operation in any of the Ultra DMA modes. Table
describes typical values for series termination at the host and the device.
~
~
~
1
1
1
6
6
6
G
G
G
C
C
C
F
F
F
Signal
3
3
3
0
0
0
0
0
0
Table: Typical Series Termination for Ultra DMA
Host Termination
17
22 ohm
22 ohm
33 ohm
33 ohm
22 ohm
33 ohm
82 ohm
82 ohm
82 ohm
33 ohm
300X CompactFlash Card
Device Termination
82 ohm
82 ohm
82 ohm
82 ohm
82 ohm
33 ohm
22 ohm
22 ohm
22 ohm
82 ohm