Transcend Information TS16G-64GCF400, 400X dimensions TS16G~64GCF400, Transcend Information Inc

TS16G~64GCF400 400X CompactFlash Card

￿Ultra DMA Electrical Requirements

￿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.

Table: Typical Series Termination for Ultra DMA
Signal	Host Termination	Device Termination
-HIOE (-HDMARDY,HSTROBE)	22 ohm	82 ohm
-IOWR (STOP)	22 ohm	82 ohm
-CS0, -CS1	33 ohm	82 ohm
A00, A01, A02	33 ohm	82 ohm
-DMACK	22 ohm	82 ohm
D15 through D00	33 ohm	33 ohm
DMARQ	82 ohm	22 ohm
INTRQ	82 ohm	22 ohm
IORDY (-DDMARDY, DSTROBE)	82 ohm	22 ohm
-RESET	33 ohm	82 ohm

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.

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