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CompactFlash Memory Card Product Manual
4.3.8
Common Memory Read Timing
Specification
Table 4-5 Common Memory Read Timing
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
(Default Speed)
An
-REG
-CE
-OE
-WAIT
tv(WT-OE)
Dout
Notes:
The maximum load on -WAIT is 1 LSTTL with 50pF total load. All times are in nanoseconds.
Dout signifies data provided by the CompactFlash Memory 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 (in the slowest mode) can be determined from the Card Information Structure.
32
Symbol
ta(OE)
tdis(OE)
tsu(A)
th(A)
tsu(CE)
th(CE)
tv(WT-OE)
tv(WT)
tw(WT)
tsu(A)
tsu(CE)
ta(OE)
Figure 4-3 Common Memory Read Timing Diagram
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION
IEEE Symbol
tGLQV
tGHQZ
tAVGL
tGHAX
tELGL
tGHEH
tGLWTV
tQVWTH
tWTLWTH
tw(WT)
tv(WT)
Min ns.
Max ns.
125
100
30
20
0
20
35
0
350
th(A)
th(CE)
tdis(OE)
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