SDCFCR-004G-388 SanDisk, SDCFCR-004G-388 Datasheet - Page 23

• Manufacturer Part Number: SDCFCR-004G-388
• Description: COMPACT FLASH IND 4GB
• Manufacturer: SanDisk

Specifications of SDCFCR-004G-388

• Memory Size: 4GB
• Memory Type: CompactFLASH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SanDisk Industrial Grade CompactFlash 5000
-DMACK (True IDE Mode)
RESET (PC Card Memory
Mode) (PC Card I/O Mode) -
RESET (True IDE Mode)
VCC (PC Card Memory Mode)
(PC Card I/O Mode) (True IDE
Mode)
-VS1 -VS2 (PC Card Memory
Mode) (PC Card I/O Mode)
(True IDE Mode)
-WAIT (PC Card Memory
Mode) -WAIT (PC Card I/O
Mode) IORDY (True IDE
Mode)
-WE (PC Card Memory Mode)
-WE (PC Card I/O Mode) -WE
(True IDE Mode)
WP (PC Card Memory Mode)
-IOIS16 (PC Card I/O Mode) -
IOCS16 (True IDE Mode)
© 2007 SanDisk® Corporation
I
O
O
I
O
13, 38
33, 40
41
42
36
24
The host uses this signal in response to DMARQ to initiate DMA transfers. NOTE: This signal may be negated
by the host to suspend the DMS transfer in process. For Multiword DMA transfers, the device may negate
DMARQ with the tL specified time once the DMACK- is asserted and reasserted again at a later time to resume
DMA operation. Alternatively, if the device is able to continue the data transfer, the device may leave DMARQ
asserted and wait for the host to reassert DMACK-.
When the pin is high, this signal resets the card. The card is reset only at power-up if this pin is left high or
open from power-up. The card is also reset when the Soft Reset bit in the Card Configuration Option Register
is set. In True IDE Mode this input pin is the active low hardware reset from the host.
+5V, +3.3V power.
Voltage Sense Signals. -VS1 is grounded so that the CompactFlash Card CIS can be read at 3.3 volts and
VS2 is open and reserved by PCMCIA for a secondary voltage.
SanDisk CompactFlash Memory cards do not assert the -WAIT signal. SanDisk CompactFlash Memory cards,
except when in UDMA modes, do not assert an IORDY signal.
This is a host-driven signal used for strobing memory write data to the registers of the card when it is
configured in the Memory Interface Mode. It is also used for writing the configuration registers. In PC Card I/O
Mode, this signal is used for writing the configuration registers. In True IDE Mode this input signal is not used
and should be connected to VCC by the host.
Memory Mode–The CompactFlash Card does not have a write-protect switch. This signal is held low after the
completion of the reset initialization sequence.
I/O Operation–When the card is configured for I/O Operation, pin 24 is used for the -I/O Selected is 16 Bit Port
(-IOIS16) function. A low signal indicates that a 16-bit or odd-byte only operation can be performed at the
addressed port. This output signal is asserted low when this device is expecting a word data transfer cycle.
16
Product Manual
March 2007