• Support for CIS implementation with 256 bytes of
attribute memory
Interface modes
• PC card memory mode
• PC card I/O mode
• True IDE mode
High performance
• Interface Transfer speed in PIO mode 4 or Multi
Word DMA mode 2 cycle timing, 16.6 Mbytes/
second (theoretical)
• Sustained write: max 6.0 Mbytes/s in ATA PIO
mode 4 cycle timing
• Sustained read: max 6.5 Mbytes/s in ATA PIO
mode 4 cycle timing
W/E Endurance: 100,000cycles
1
/300,000cycles
2
Notes: 1. T
A
= -40 to 85°C
2. T
A
= 0 to 70°C
WED7PxxxCFA70xxI25
perfect choice for solid-state mass-storage in industrial
applications and applications that require performance and
extended environmental tolerances. Other applications
include handheld devices such as Digital Cameras, Audio
Players, and PDAs.
Dimensions:
Type I card : 36.4mm(L) x 42.8mm (W) x 3.3mm (H)
Lead free and RoHS compliant
Storage Capacities:
128MB, 256MB, 512MB and 1.02GB (unformatted)
Operating Voltage:
3.3V ± 5%
5.0V ± 0.5V
Power consumption:
• 5V operation
Active mode:
Write operation: 28 mA (Typ.)
Read operation: 23 mA (Typ.)
Power down mode: 1.2mA (Typ.) 2.0mA (max.)
• 3.3V operation
Active mode:
Write operation: 25 mA (Typ.)
Read operation: 21 mA (Typ.)
Power down mode: 1.0mA (Typ.) 1.5mA (max.)
Environment conditions:
• Operating temperature: -40°C to 85°C
• Storage temperature: -45°C to 90°C
• Storage humidity: 95% (max) (No condensation)
* This product is subject to change without notice.
Notes: CompactFlash™ is a trademark of SanDisk Corporation and is licensed royalty-
free to the CFA, which in turn will license it royalty-free to CFA members.
CFA: CompactFlash™ Association.
DESCRIPTION
The WED7PxxxCFA70xxI25 series CompactFlash™ card
is an ATA interface flash memory card based on flash
technology. The CompactFlash™ card is constructed with
a flash disk controller chip and NAND-type flash memory
device. Operates from a single 5-Volt or 3.3-Volt power
source. The card is available in CompactFlash™ type-I
form factor with 128MB, 256MB, 512MB and 1.02GB
unformatted capacity. Being able to emulate IDE hard disk
drives and certified in accordance with the CompactFlash™
Certification Plan, WEDC’s CompactFlash™ card is a
PRODUCT TYPES
Card Density
128MB
256MB
512MB
1.02GB
Model No.
7P128CFA70xxI25
7P256CFA70xxI25
7P512CFA70xxI25
7P1G0CFA70xxI25
Cylinder
978
978
993
1985
Head
8
16
16
16
Sector
32
32
63
63
Memory capacity
1
128,188,416 Byte
256,376,832 Byte
512,483,328 Byte
1024,450,560 Byte
1: It is the logical address capacity including the area used for File System.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July 2005
Rev. 1
1
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic
PC Card Memory Mode
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
Signal
Name
GND
D03
D04
D05
D06
D07
CE1#
A10
OE#
A09
A08
A07
V
CC
A06
A05
A04
A03
A02
A01
A00
D00
D01
D02
WP
CD2#
CD1#
D11
1
D12
1
D13
1
D14
1
D15
1
CE21#
VS1#
IORD#
IOWR#
WE#
READY
V
CC
CSEL#
VS2#
RESET
Pin Type
I/O
I/O
I/O
I/O
I/O
I
I
I
I
I
I
I
I
I
I
I
I
I
I/O
I/O
I/O
O
O
O
I/O
I/O
I/O
I/O
I/O
I
O
I
I
I
O
I
O
I
In, Out
Type
Ground
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I3U
I3Z
I4U
I3Z
I3Z
I3Z
Power
I3Z
I3Z
I3Z
I3Z
I3Z
I3Z
I3Z
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
OT1
Ground
Ground
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I3U
Ground
I4U
I4U
I4U
OT1
Power
I1U
OPEN
I3U
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
PC Card I/O Mode
Signal
Name
GND
D03
D04
D05
D06
D07
CE1#
A10
OE#
A09
A08
A07
V
CC
A06
A05
A04
A03
A02
A01
A00
D00
D01
D02
IOIS16#
CD2#
CD1#
D11
1
D12
1
D13
1
D14
1
D15
1
CE21#
VS1#
IORD#
IOWR#
WE#
IREQ#
V
CC
CSEL#
VS2#
RESET
Pin Type
I/O
I/O
I/O
I/O
I/O
I
I
I
I
I
I
I
I
I
I
I
I
I
I/O
I/O
I/O
O
O
O
I/O
I/O
I/O
I/O
I/O
I
O
I
I
I
O
I
O
I
In, Out
Type
Ground
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I3U
I3Z
I4U
I3Z
I3Z
I3Z
Power
I3Z
I3Z
I3Z
I3Z
I3Z
I3Z
I3Z
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
OT1
Ground
Ground
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I3U
Ground
I4U
I4U
I4U
OT1
Power
I1U
OPEN
I3U
WED7PxxxCFA70xxI25
PIN ASSIGNMENTS AND PIN TYPE
True IDE Mode
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
Signal
Name
GND
D03
D04
D05
D06
D07
CS0#
A10
2
ATA# SEL
A09
2
A08
2
A07
2
V
CC
A06
2
A05
2
A04
2
A03
2
A02
A01
A00
D00
D01
D02
IOIS16#
CD2#
CD1#
D11
1
D12
1
D13
1
D14
1
D15
1
CS1
1
#
VS1#
DIOR#
DIOW#
WE
3
#
INTRQ
V
CC
CSEL#
VS2#
RESET#
Pin Type
I/O
I/O
I/O
I/O
I/O
I
I
I
I
I
I
I
I
I
I
I
I
I
I/O
I/O
I/O
O
O
O
I/O
I/O
I/O
I/O
I/O
I
O
I
I
I
O
I
O
I
In, Out
Type
Ground
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I3U
I3Z
I4U
I3Z
I3Z
I3Z
Power
I3Z
I3Z
I3Z
I3Z
I3Z
I3Z
I3Z
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
ON1
Ground
Ground
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
I3U
Ground
I4U
I4U
I4U
OZ1
Power
I1U
OPEN
I3U
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July 2005
Rev. 1
2
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic
PC Card Memory Mode
Pin
42
43
44
45
46
47
48
49
50
Signal
Name
WAIT#
INPACK#
REG#
BVD
2
BVD
1
D08
1
D09
1
D10
1
GND
Pin Type
O
O
I
I/O
I/O
I/O
I/O
I/O
In, Out
Type
OT1
OT1
I3U
I4U,OT1
I4U,OT1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
Ground
Pin
42
43
44
45
46
47
48
49
50
PC Card I/O Mode
Signal
Name
WAIT#
INPACK#
REG#
SPKR#
STSCHG#
D08
1
D09
1
D10
1
GND
Pin Type
O
O
I
I/O
I/O
I/O
I/O
I/O
In, Out
Type
OT1
OT1
I3U
I4U,OT1
I4U,OT1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
Ground
WED7PxxxCFA70xxI25
PIN ASSIGNMENTS AND PIN TYPE (cont'd)
True IDE Mode
Pin
42
43
44
45
46
47
48
49
50
Signal
Name
IORDY
DMARQ
DMACK#
DASP#
PDIAG#
D08
1
D09
1
D10
1
GND
Pin Type
O
O
I
I/O
I/O
I/O
I/O
I/O
In, Out
Type
ON1
OZ1
I3U
I4U,ON1
I4U,ON1
I4Z,OZ1
I4Z,OZ1
I4Z,OZ1
Ground
Notes: 1. These signals are required only for 16 bit access and not required when installed in 8 bit systems. Devices allow for 3-state signals to consume no current.
2. Should be grounded by the host.
3. Should be tied to V
CC
by the host.
ACCESS SPECIFICATIONS
1. Attribute access specifications
When CIS-ROM region or Configuration register region is accessed, read and write operations are executed under the
condition of REG# = ”L” as follows. That region can be accessed by Byte/Word/Odd-byte modes, which are defined by
PC card standard specifications.
Attribute Read Access Mode
Mode
Standby mode
Byte access (8bit)
Word access (16bit)
Odd byte access (8bit)
Note: X
→
L or H
REG#
X
L
L
L
L
CE2#
H
H
H
L
L
CE1#
H
L
L
L
H
A0
X
L
H
X
X
OE#
X
L
L
L
L
WE#
X
H
H
H
H
D8 to D15
High-Z
High-Z
High-Z
invalid
invalid
D0 to D7
High-Z
even byte
Invalid
even byte
High-Z
Attribute Write Access Mode
Mode
Standby mode
Byte access (8bit)
Word access (16bit)
Odd byte access (8bit)
Note: X
→
L or H
Write CIS-ROM region is invalid.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July 2005
Rev. 1
3
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
REG#
X
L
L
L
L
CE2#
H
H
H
L
L
CE1#
H
L
L
L
H
A0
X
L
H
X
X
OE#
X
H
H
H
H
WE#
X
L
L
L
L
D8 to D15
Don’t care
Don’t care
Don’t care
Don’t care
Don’t care
D0 to D7
Don’t care
even byte
Don’t care
even byte
Don’t care
White Electronic
2. Task File register access specifications
WED7PxxxCFA70xxI25
There are two types of Task File register mapping, one is mapped I/O address area, the other is mapped Memory address
area. Each type of Task File register read and write operation is executed under the condition as follows. That area can
be accessed by Byte/Word/Odd Byte modes, which are defined by PC card standard specifications.
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