Interface description, 1 physical description – SanDisk CompactFlash Extreme III User Manual
Page 19
CHAPTER 3
Interface Description
3.1
Physical Description
The host connects to SanDisk CompactFlash Memory cards using a standard 50-pin connector
consisting of two rows of 25 female contacts each on 50 mil (1.27 mm) centers.
3.1.1
Pin Assignments and Types
The signal/pin assignments are listed in Table 3-1. Low active signals have a "-" prefix. Pin
types are Input, Output or Input/Output. Sections 3.3.1 and 3.3.2 define the DC characteristics
for all input and output type structures..
Table 3-1
PC Card Memory Mode Pin Assignments
Pin No.
Signal
Name
Pin Type
I/O Type
Pin No.
Signal
Name
Pin Type
I/O Type
1
GND
–
Ground
26
-CD1
O
Ground
2
D03
I/O
I1Z,OZ3
27
D11
I/O
I1Z,OZ3
3
D04
I/O
I1Z,OZ3
28
D12
I/O
I1Z,OZ3
4
D05
I/O
I1Z,OZ3
29
D13
I/O
I1Z,OZ3
5
D06
I/O
I1Z,OZ3
30
D14
I/O
I1Z,OZ3
6
D07
I/O
I1Z,OZ3
31
D15
I/O
I1Z,OZ3
7
-CE1
I
I3U
32
-CE2
I
I3U
8
A10
I
I1Z
33
-VS1
O
Ground
9
-OE
I
I3U
34
-IORD
I
I3U
10
A09
I
I1Z
35
-IOWR
I
I3U
11
A08
I
I1Z
36
-WE
I
I3U
12
A07
I
I1Z
37
RDY/BSY
O
OT1
13
VCC
–
Power
38
VCC
–
Power
14
A06
I
I1Z
39
-CSEL
I
I2Z
15
A05
I
I1Z
40
-VS2
O
OPEN
16
A04
I
I1Z
41
RESET
I
I2Z
17
A03
I
I1Z
42
-WAIT
O
OT1
18
A02
I
I1Z
43
-INPACK
O
OT1
19
A01
I
I1Z
44
-REG
I
I3U
20
A00
I
I1Z
45
BVD2
I/O
I1U,OT1
21
D00
I/O
I1Z,OZ3
46
BVD1
I/O
I1U,OT1
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
WP
O
OT3
49
D10
I/O
I1Z,OZ3
25
-CD2
O
Ground
50
GND
–
Ground
© 2007 SanDisk Corporation
3-1
Rev. 12.0, 02/07