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3
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
SRV31-SRV34
February 2007
Rev. 1
PINOUT
Pin
Signal name
I/O
Function
Active
35
GND
Ground
36
CD1#
O
Card Detect 1
LOW
37
DQ11
I/O
Data bit 11
38
DQ12
I/O
Data bit 12
39
DQ13
I/O
Data bit 13
40
DQ14
I/O
Data bit 14
41
DQ15
I
Data bit 15
42
CE2#
I
Card Enable 2
LOW
43
VS1
O
Voltage Sense 1
N.C.
44
N.C.
45
N.C.
46
A17
I
Address bit 17
47
A18
I
Address bit 18
48
A19
I
Address bit 19
49
A20
I
Address bit 20
2MB(2)
50
A21
I
Address bit 21
4MB(2)
51
Vcc
Supply Voltage
52
Vpp2
Prog. Voltage
N.C.
53
A22
Address bit 22
8MB(2,4)
54
A23
Address bit 23
16MB(2,3)
55
A24
Address bit 24
N.C.
56
A25
Address bit 25
N.C.
57
VS2
O
Voltage Sense 2
N.C.
58
N.C.
59
Wait#
O
Extended Bus Cycle
Low
60
N.C.
61
REG#
I
Attrib Mem Select
Low
62
BVD2
O
Bat. Volt. Detect 2
(5)
63
BVD1
O
Bat. Volt. Detect 1
(5)
64
DQ8
I/O
Data bit 8
65
DQ9
I/O
Data bit 9
66
DQ10
O
Data bit 10
67
CD2#
O
Card Detect 2
LOW
68
GND
Ground
Pin
Signal name
I/O
Function
Active
1
GND
Ground
2
DQ3
I/O
Data bit 3
3
DQ4
I/O
Data bit 4
4
DQ5
I/O
Data bit 5
5
DQ6
I/O
Data bit 6
6
DQ7
I/O
Data bit 7
7
CE1#
I
Card enable 1
LOW
8
A10
I
Address bit 10
9
OE#
I
Output enable
LOW
10
A11
I
Address bit 11
11
A9
I
Address bit 9
12
A8
I
Address bit 8
13
A13
I
Address bit 13
14
A14
I
Address bit 14
15
WE#
I
Write Enable
LOW
16
RDY/BSY#
O
Ready/Busy
N.C.
17
Vcc
Supply Voltage
18
Vppl
Prog. Voltage
N.C.
19
A16
I
Address bit 16
20
A15
I
Address bit 15
21
A12
I
Address bit 12
22
A7
I
Address bit 7
23
A6
I
Address bit 6
24
A5
I
Address bit 5
25
A4
I
Address bit 4
26
A3
I
Address bit 3
27
A2
I
Address bit 2
28
A1
I
Address bit 1
29
A0
I
Address bit 0
30
DQ0
I/O
Data bit 0
31
DQ1
I/O
Data bit 1
32
DQ2
I/O
Data bit 2
33
WP
O
Write Potect
HIGH
34
GND
Ground
Notes:
1. CD1# and CD2# are grounded internal to PC Card.
2. Shows density for which specied address bit is MSB. Higher order address bits are
no connects (ie 1MB A19 is MSB, A20 - A21 are NC).
3. The A23 Address line for 16MB capacities is also used for 12MB cards.
4. VS1 is grounded and VS2 is open to indicate a 3.3V/5V card, with a 5V key, has
been inserted.
5. BVD1 and BVD2 are open drain outputs with a 10KOhm internal pull-up resistors