T
T
T
S
S
S
8
8
8
G
G
G
~
~
~
1
1
1
6
6
6
G
G
G
C
C
C
F
F
F
6
6
6
0
0
0
0
0
0
600X CompactFlash Card
Transcend Information Inc.
V1.0
23
Common Memory Read Timing Specification
Cycle Time Mode:
250 ns
120 ns
100 ns
80 ns
Item
Symbol
IEEE
Symbol
Min
ns.
Max
ns.
Min
ns.
Max
ns.
Min
ns.
Max
ns.
Min
ns.
Max
ns.
Output Enable Access Time
ta(HOE)
tGLQV
125
60
50
45
Output Disable Time from HOE tdis(HOE)
tGHQZ
100
60
50
45
Address Setup Time
tsu(HA)
tAVGL
30
15
10
10
Address Hold Time
th(HA)
tGHAX
20
15
15
10
CEx Setup before HOE
tsu(CEx)
tELGL
5
5
5
5
CEx Hold following HOE
th(CEx)
tGHEH
20
15
15
10
Wait Delay Falling from HOE
tv(IORDY-HOE) tGLWTV
35
35
35
na
1
Data Setup for Wait Release
tv(IORDY)
tQVWTH
0
0
0
na
1
Wait Width Time
2
tw(IORDY)
tWTLWTH
350
350
350
na
1
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.
