PCMCIA Flash Memory Card
FVB Series
Value Series Flash Memory Card (AMD based)
General Description
The WEDC Value Series (FV) Flash memory cards
offers a low cost linear Flash solid state storage
solution for code and data storage, high performance
disk
emulation,
mobile
PC
and
embedded
applications.
The WEDC FVB Value series is based on AMD
Flash memories. Current cards are based on the
AMD 29F016 (2MB) device whose manufacturer
and device code is 01 and ADH respectively. The
symmetrically blocked architecture and single 5V
operation
provides
a
cost
effective,
high
performance, nonvolatile storage solution. The PC
Card form factor offers an industry standard pinout
and mechanical outline, allowing density upgrades
without system design changes.
The Value series is designed as a simple x16 linear
array of Flash devices. Two Flash devices in parallel
provide the lower and upper bytes for the 16 bit
access. The Value series does not provide access of
the ODD byte (D8 - D15) on the even byte data path
(D0 - D7).
WEDC’s standard Value Series Flash Card is
shipped with no attribute memory or CIS (Card
Information Structure) information. An option for
2KB of attribute memory with CIS information is
available. The CIS for the WEDC Value series may
also be stored in Block 0 (even bytes, D0 - D7 only)
of the Flash memory, this option is available by
request only.
WEDC’s standard cards are shipped with WEDC
Logo. Cards are also available in blank housings (no
Logo). The blank housings are available in both a
recessed (for label) and flat housing. Please contact
WEDC sales representative for further information
Custom artwork.
CE1#
CE2#
REG#
WE#
OE#
A22
A23
CONTROL
LOGIC
Device 5
/WR
Device 3
/RD
Device 1
Device 0
Device 2
ADDRESS BUS A1-A21
Device 4
R/Busy
Busy 0-7
4, 8, 16 MEGABYTE
Features
•
Low cost Linear Flash Card
• Single 5 Volt Supply
•Based on AMD Flash Components
- very low power without entering reset mode
- allows standard access from low power mode
•Fast Read Performance
- 150ns Maximum Access Time
• x16 Data Interface
- Odd byte not accessible on Even byte
• High Performance Random Writes
- 10µs Typical Word Write Time
• Automated Write and Erase Algorithms
- AMD Command Set
• 50µA Typical Deep Power-Down
• 100,000 Erase Cycles per Block
• 64K word symmetrical Block Architecture
• PC Card Standard Type I Form Factor
Block Diagram
Device 7
Device 6
ATTRIBUTE
MEMORY
28C16
Vpp1
Vpp2
VS1
VS2
open
DATA
D8-15
DATA
D0-7
Note:
Configuration above for 16MB card using 16Mbit
components.
August 2000 Rev. 3 - ECO #13135
1
PC Card Products
PCMCIA Flash Memory Card
FVB Series
Pinout
Pin Signal name
1
GND
2
DQ3
3
DQ4
4
DQ5
5
DQ6
6
DQ7
7
CE1#
8
A10
9
OE#
10
A11
11
A9
12
A8
13
A13
14
A14
15
WE#
16
RDY/BSY
#
17
Vcc
18
Vpp1
19
A16
20
A15
21
A12
22
A7
23
A6
24
A5
25
A4
26
A3
27
A2
28
A1
29
A0
30
DQ0
31
DQ1
32
DQ2
33
WP
34
GND
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
I
I
I
I
I
I
O
Function
Ground
Data bit 3
Data bit 4
Data bit 5
Data bit 6
Data bit 7
Card enable 1
Address bit 10
Output enable
Address bit 11
Address bit 9
Address bit 8
Address bit 13
Address bit 14
Write Enable
Ready/Busy
Supply Voltage
Prog. Voltage
Address bit 16
Address bit 15
Address bit 12
Address bit 7
Address bit 6
Address bit 5
Address bit 4
Address bit 3
Address bit 2
Address bit 1
Address bit 0
Data bit 0
Data bit 1
Data bit 2
Write Potect
Ground
Active
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
RFU
Reserved
45
RFU
Reserved
46
A17
I
Address bit 17
47
A18
I
Address bit 18
48
A19
I
Address bit 19
49
A20
I
Address bit 20
50
A21
I
Address bit 21
4MB(2)
51
Vcc
Supply Voltage
52
Vpp2
Prog. Voltage
N.C.
53
A22
I
Address bit 22
8MB(2)
54
A23
I
Address bit 23
16MB(2)
55
A24
I
Address bit 24
N.C.
56
A25
I
Address bit 25
N.C.
57
VS2
O Voltage Sense 2 N.C.
58
RST
I
Card Reset
HIGH
59
Wait#
O Extended Bus cycle LOW
60
RFU
Reserved
61
REG#
I Attrib Mem Select
62
BVD2
O Bat. Volt. Detect 2
63
BVD1
O Bat. Volt. Detect 1
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
LOW
LOW
LOW
LOW
N.C.
I
I
I
I
I
I
I
I
I
I
I
I/O
I/O
I/O
O
NC
HIGH
Notes:
1. RDY/BSY is an open drain output, external pull-up resistor is required.
2. Shows density for which specified address bit is MSB. Higher order address bits are no
connects (i.e., 4MB A21 is MSB A22 - A25 are NC).
Mechanical
Interconnect area
1.6mm
±
0.05
(0.063”)
10.0mm MIN
(0.400”)
3.0mm MIN
1.0mm
±
0.05
(0.039”)
Substrate area
54.0mm
±
0.10
(2.126”)
1.0mm
±
0.05
(0.039”)
10.0mm MIN
(0.400”)
85.6mm
±
0.20
(3.370”)
3.3mm
±
T1 (0.130”)
T1=0.10mm interconnect area
T1=0.20mm substrate area
August 2000 Rev. 3 - ECO #13135
2
PC Card Products
PCMCIA Flash Memory Card
FVB Series
Card Signal Description
Symbol
A0 - A25
Type
INPUT
Name and Function
ADDRESS INPUTS:
A0 through A25 enable direct addressing of
up to 64MB of memory on the card. Signal A0 is not decoded since
the card is x16 only. The memory will wrap at the card density
boundary. The system should not try to access memory beyond the
card density. The upper addresses are not connected.
DATA INPUT/OUTPUT:
DQ0 THROUGH DQ15 constitute the
bi-directional databus. DQ0 - DQ7 constitute the lower (even) byte
and DQ8 - DQ15 the upper (odd) byte. DQ15 is the MSB.
CARD ENABLE 1 AND 2:
CE1# enables even byte accesses, CE2#
enables odd byte accesses. Odd byte (DQ8 - DQ15) can not be
accessed on DQ0 - DQ7.
OUTPUT ENABLE:
Active low signal enabling read data from the
memory card.
WRITE ENABLE:
Active low signal gating write data to the
memory card.
READY/BUSY OUTPUT:
Indicates status of internally timed erase
or program algorithms. A high output indicates that the card is ready
to accept accesses. Open Drain output, pull-up resistor is required.
CARD DETECT 1 and 2:
Provide card insertion detection. These
signals are connected to ground internally on the memory card. The
host socket interface circuitry shall supply 10K-ohm or larger pull-up
resistors on these signal pins.
WRITE PROTECT:
This signal is pulled low internally. This
signifies write protect = "off " for all cases.
PROGRAM/ERASE POWER SUPPLY:
Not connected for 5V
only card.
CARD POWER SUPPLY:
5.0V for all internal circuitry.
GROUND:
for all internal circuitry.
ATTRIBUTE MEMORY SELECT :
only used with cards built
with optional attribute memory.
RESET:
Active high signal for placing card in Power-on default
state. Reset can be used as a Power-Down signal for the memory
array.
WAIT:
This signal is pulled high internally for compatibility. No
wait states are generated.
BATTERY VOLTAGE DETECT:
These signals are pulled high to
maintain SRAM card compatibility.
VOLTAGE SENSE:
Notifies the host socket of the card's VCC
requirements. VS1 and VS2 are open to indicate a 5V, 16 bit card
has been inserted.
RESERVED FOR FUTURE USE
NO INTERNAL CONNECTION TO CARD:
pin may be driven
or left floating
DQ0 - DQ15
INPUT/OUTP
UT
INPUT
CE1#, CE2#
OE#
WE#
RDY/BSY#
INPUT
INPUT
OUTPUT
CD1#, CD2#
OUTPUT
WP
VPP1, VPP2
VCC
GND
REG#
RST
OUTPUT
N.C.
INPUT
INPUT
WAIT#
BVD1, BVD2
VS1, VS2
OUTPUT
OUTPUT
OUTPUT
RFU
N.C.
Functional Truth Table
READ function
Common Memory
Attribute Memory
Function Mode
Standby Mode
Low Byte Access
Word Access (16 bits)
Odd-Byte Only Access
WRITE function
/CE2 /CE1
H
H
H
L
L
L
L
H
H
H
L
L
H
L
L
H
/OE
X
L
L
L
X
H
H
H
/WE
X
H
H
H
X
L
L
L
/REG D15-D8
D7-D0
X
High-Z
High-Z
H
High-Z Even-Byte
H
Odd-Byte Even-Byte
H
Odd-Byte
High-Z
X
H
H
H
3
/REG D15-D8
X
High-Z
L
High-Z
L
Not Valid
L
Not Valid
X
L
L
L
X
X
X
X
D7-D0
High-Z
Even-Byte
Even-Byte
High-Z
X
Even-Byte
Even-Byte
X
PC Card Products
Standby Mode
Low Byte Access
Word Access (16 bits)
Odd-Byte Only Access
August 2000 Rev. 3 - ECO #13135
X
X
X
Even-Byte
Odd-Byte Even-Byte
Odd-Byte
X
PCMCIA Flash Memory Card
FVB Series
Absolute Maximum Ratings
(1)
Operating Temperature TA (ambient)
Commercial
Industrial
Storage Temperature
Voltage on any pin relative to VSS
VCC supply Voltage relative to VSS
Note:
(1) Stress greater than those listed under “Absolute
Maximum ratings” may cause permanent damage to
the device. This is a stress rating only and functional
operation at these or any other conditions greater
than those indicated in the operational sections of
this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods
may affect reliability.
0°C to +60 °C
-40°C to +85 °C
-40°C to +85 °C
-0.5V to VCC+0.5V
-0.5V to +7.0V
DC Characteristics
(1)
Symbol Parameter
I
CCR
I
CCW
I
CCE
I
CCS
VCC Read Current
VCC Program Current
VCC Erase Current
Density
(Mbytes)
4,8,16
4,8,16
4,8,16
2
10
Notes Typ
(3)
Max
40
65
65
100
Units
mA
mA
mA
µA
VCC = 5.25V
Control Signals = VCC
Test Conditions
VCC = 5.25V
tcycle = 150ns
VCC Standby Current
4,8,16
For max capacity 16MB
CMOS Test Conditions: VIL = VSS ± 0.2V, VIH = VCC ± 0.2V
Notes:
1. All currents are for Byte mode and are RMS values unless otherwise specified.
2. Control Signals: CE
1
#, CE
2
#, OE#, WE#, REG#.
3. Typical: VCC = 5V, T = +25C.
Symbol
I
LI
I
LO
V
IL
V
IH
V
OL
V
OH
V
LKO
Parameter
Input Leakage Current
Output Leakage Current
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
VCC Erase/Program
Lock Voltage
Notes
1,2
1
1
1
1
1
1
Min
Max
±20
±20
Units
µA
µA
V
V
V
V
V
Test Conditions
VCC = VCCMAX
Vin =VCC or VSS
VCC = VCCMAX
Vout =VCC or VSS
0
3.85
0.8
VCC+0.
5
0.4
VCC
4.2
IOL = 3.2mA
IOH = -2.0mA
VCC-0.4
3.2
Notes:
1. Values are the same for byte and word wide modes for all card densities.
2. Exceptions: Leakage currents on CE1#, CE2#, OE#, REG# and WE# will be < 500 µA when VIN = GND
due to internal pull-up resistors. Leakage currents on RST will be <150µA when VIN=VCC due to
internal pull-down resistor.
August 2000 Rev. 3 - ECO #13135
4
PC Card Products
PCMCIA Flash Memory Card
FVB Series
AC Characteristics
Read Timing Parameters
150ns
SYMBOL
(PCMCIA)
t
C
(R)
t
a
(A)
t
a
(CE)
t
a
(OE)
t
su
(A)
t
su
(CE)
t
h
(A)
t
h
(CE)
t
v
(A)
t
dis
(CE)
t
dis
(OE)
t
en
(CE)
t
en
(OE)
(2)
t
rec(RST)
Parameter
Read Cycle Time
Address Access Time
Card Enable Access Time
Output Enable Access Time
Address Setup Time
Card Enable Setup Time
Address Hold Time
Card Enable Hold Time
Output Hold from Address
Change
Output Disable Time from CE#
Output Disable Time from OE#
Output Enable Time from CE#
Output Enable Time from OE#
Power Down recovery to Output
Delay. VCC = 5V
5
5
500
Min
150
150
150
75
20
0
20
20
0
75
75
Max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes:
1. AC timing diagrams and characteristics are guaranteed to meet or exceed PCMCIA 2.1 specifications.
2. Minimum width of reset pulse 500ns.
Read Timing Diagram
tc(R )
ta(A )
th(A )
A [2 5::0], /R E G
tv(A )
ta (C E )
/C E 1, /C E2
NOTE 1
tsu(C E )
NOTE 1
tsu(A )
ta(O E )
th(C E )
/O E
ten (O E )
D [15 ::0 ]
D A T A V A LID
td is(O E )
td is(C E )
Note:
Signal may be high or low in this area
August 2000 Rev. 3 - ECO #13135
5
PC Card Products
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