White Electronic Designs
PCMCIA Flash Memory Card
FLG Series
WRITE TIMING PARAMETERS
SYM (PCMCIA)
t
C
W
t
w
(WE)
t
su
(A)
t
su
(A-WEH)
t
su
(CE-WEH)
t
su
(D-WEH)
t
h
(D)
t
rec
(WE)
t
dis
(WE)
t
dis
(OE)
t
en
(WE)
t
en
(OE)
t
su
(OE-WE)
t
h
(OE-WE)
t
su
(CE)
t
h
(CE)
Parameter
Write Cycle Time
Write Pulse Width
Address Setup Time
Address Setup Time for WE#
Card Enable Setup Time for WE#
Data Setup Time for WE#
Data Hold Time
Write Recover Time
Output Disable Time from WE#
Output Disable Time from OE#
Output Enable Time from WE#
Output Enable Time from OE#
Output Enable Setup from WE#
Output Enable Hold from WE#
Card Enable Setup Time from OE#
Card Enable Hold Time
150ns
Min
150
80
20
100
100
50
20
20
Max
Min
200
120
20
100
100
50
20
20
200ns
Max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
60
60
5
5
10
10
0
20
5
5
10
10
0
20
60
60
Note: AC timing diagrams and characteristics are guaranteed to meet or exceed PCMCIA 2.1 specifications.
WRITE TIMING DIAGRAM
t
C
(W)
A[25::0], REG#
t
SU
(A-WEH)
CE
1#
, CE
2#
NOTE 1
t
SU
(CE-WEH)
t
SU
(CE)
t
REC
(WE)
t
H
(CE)
NOTE 1
OE#
t
SU
(A)
WE#
t
SU
(OE-WE)
D[15::0](D
IN
)
NOTE 2
t
W
(WE)
t
H
(OE-WE)
t
H
(D)
t
SU
(D-WEH)
DATA INPUT
t
DIS
(WE)
t
DIS
(OE)
t
EN
(OE)
t
EN
(WE)
D[15::0](D
OUT
)
NOTE 2
Notes: 1. Signal may be high or low in this area.
2. When the data I/O pins are in the output state, no signals shall be applied to the data pins (D15 - D0) by the host system.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June, 2003
Rev. 4
7
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
