SanDisk 20-10-00038, Product Manual, Page: 21 / 108

SanDisk CompactFlash Card OEM Product Manual Interface Description
Table 3-3 True IDE Mode Pin Assignments
Pin
No. Signal
Name Pin Type I/O Type Pin No.
Signal
Name Pin Type I/O Type
9 -ATA SEL I I3U 34 -IORD I I3Z
10 A09 I I1Z 35 -IOWR I I3Z
11 A08 I I1Z 36 -WE I I3U
12 A07 I I1Z 37 INTRQ O OZ1
13 VCC – Power 38 VCC – Power
14 A06 I I1Z 39 -CSEL I I2U
15 A05 I I1Z 40 -VS2 O OPEN
16 A04 I I1Z 41 RESET I I2Z
17 A03 I I1Z 42 IORDY O OT1
18 A02 I I1Z 43 -DMARQ O OZ1
19 A01 I I1Z 44 -DMACK I I3U
20 A00 I I1Z 45 -DASP I/O I1U,ON1
21 D00 I/O I1Z,OZ3 46 -PDIAG I/O I1U,ON1
22 D01 I/O I1Z,OZ3 47 D08 I/O I1Z,OZ3
23 D02 I/O I1Z,OZ3 48 D09 I/O I1Z,OZ3
24 -IOCS16 O ON3 49 D10 I/O I1Z,OZ3
25 -CD2 O Ground 50 GND – Ground
3.2 Electrical Description
The CompactFlash Memory Card Series is optimized for operation with hosts, which support
the PCMCIA I/O interface standard conforming to the PC Card ATA specification. However,
the card may also be configured to operate in systems that support only the memory interface
standard. The CompactFlash card configuration is controlled using the standard PCMCIA
configuration registers starting at address 200h in the Attribute Memory space of the card.
Table 3-4 describes the I/O signals. Signals whose source is the host are designated as inputs
while signals that the card sources are outputs. SanDisk CompactFlash Memory Card logic
levels conform to those specified in Section 3.3 of the PCMCIA Release 2.1 Specification.
NOTE
:
The sleep-to-write and sleep-to-read times are the time it takes the
card to exit sleep mode when any command is issued by the host to
when the card is reading or writing. CompactFlash Memory cards do
not require a reset to exit sleep mode.
© 2007 SanDisk Corporation 3-3 Rev. 12.0, 02/07