PCMCIA Flash Memory Card
FLG Series
White Electronic Designs
WRITE TIMING PARAMETERS
150ns
200ns
SYM (PCMCIA)
Parameter
Unit
Min
150
80
Max
Min
200
120
20
Max
tCW
tw(WE)
Write Cycle Time
Write Pulse Width
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
tsu(A)
Address Setup Time
20
tsu(A-WEH)
tsu(CE-WEH)
tsu(D-WEH)
th(D)
Address Setup Time for WE#
Card Enable Setup Time for WE#
Data Setup Time for WE#
Data Hold Time
100
100
50
100
100
50
20
20
trec(WE)
tdis(WE)
tdis(OE)
Write Recover Time
20
20
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
60
60
60
60
ten(WE)
5
5
5
5
ten(OE)
tsu(OE-WE)
th(OE-WE)
tsu(CE)
10
10
0
10
10
0
th(CE)
20
20
Note: AC timing diagrams and characteristics are guaranteed to meet or exceed PCMCIA 2.1 specifications.
WRITE TIMING DIAGRAM
tC(W)
A[25::0], REG#
t
SU(A-WEH)
SU(CE-WEH)
SU(CE)
tREC(WE)
tH(CE)
t
t
CE1#, CE2#
NOTE 1
NOTE 1
OE#
tH(OE-WE)
tSU(A)
tW(WE)
WE#
tH(D)
tSU(OE-WE)
tSU(D-WEH)
NOTE 2
D[15::0](DIN
)
DATA INPUT
tDIS(WE)
tEN(OE)
tDIS(OE)
tEN(WE)
NOTE 2
D[15::0](DOUT
)
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 ]
