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T
S
3
2
M
~
1
G
C
F
T
S
3
2
M
~
1
G
C
F
T
S
3
2
M
~
1
G
C
F
3.7 Common Memory Read Timing Specification
Item
Output Enable Access Time
Output Disable Time from OE
Address Setup Time
Address Hold Time
CE Setup before OE
CE Hold following OE
Wait Delay Falling from OE
Data Setup for Wait Release
Wait Width Time
2
Notes:1) –WAIT is not supported in this mode.
2) The maximum load on -WAIT is 1 LSTTL with 50 pF (40pF below 120nsec Cycle Time) total load. All times are in
nanoseconds. Dout signifies data provided by the CompactFlash Storage Card to the system. The -WAIT signal may be ignored
if the -OE cycle to cycle time is greater than the Wait Width time. The Max Wait Width time can be determined from the Card
Information Structure. The Wait Width time meets the PCMCIA PC Card specification of 12µs but is intentionally less in this
specification.
Transcend Information Inc.
8
0
8
0
8
0
Cycle Time Mode:
Symbol
ta(OE)
tdis(OE)
tsu(A)
th(A)
tsu(CE)
th(CE)
tv(WT-OE
)
tv(WT)
tw(WT)
250 ns
IEEE
Min
Max
Symbol
ns.
ns.
tGLQV
125
tGHQZ
100
tAVGL
30
tGHAX
20
tELGL
0
tGHEH
20
tGLWTV
35
tQVWTH
0
tWTLWTH
350
21
80X CompactFlash Card
120 ns
100 ns
Min
Max
Min
Max
ns.
ns.
ns.
ns.
60
50
60
50
15
10
15
15
0
0
15
15
35
35
0
0
350
350
80 ns
Ma
Min
x
ns.
ns.
45
45
10
10
0
10
1
na
1
na
1
na
V 1 . 1
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