User Manual

CompactFlash Memory Card Interface Description
3-10 CompactFlash
®
Memory Card Product Manual, Rev. 10.0 © 2002 SANDISK CORPORATION
3.3.7. Attribute Memory Read Timing Specification
Table 3-9. Attribute Memory Read Timing Specification for all Types of Memory
300 ns Speed Version Item Symbol IEEE Symbol
Min Min
Read Cycle Time t
c
(R) tAVAV 300
Address Access Time t
a
(A) tAVQV 300
Card Enable Access Time t
a
(CE) tELQV 300
Output Enable Access Time t
a
(OE) tGLQV 150
Output Disable Time from -OE t
dis
(OE) tGHQZ 100
Output Enable Time from -OE t
en
(OE) tGLQNZ 5
Data Valid from Add Change t
v
(A) tAXQX 0
Address Setup Time t
su
(A) tAVGL 30
Address Hold Time t
h
(A) tGHAX 20
Card Enable Setup Time t
su
(CE) tELGL 0
Card Enable Hold Time t
h
(CE) tGHEH 20
1. SanDisk CompactFlash Memory Cards do not assert the -WAIT signal.
3.3.8. Memory Timing Diagrams
NOTE 1
NOTE 1
t
dis
(CE)
t
h
(CE)
DATA Valid
t
su
(A)
t
a
(CE)
t
su
(CE)
A[10:0], -REG
-CE
-OE
D[15::0]
t
h
(A)
t
c
(R)
t
a
(A)
t
v
(A)
t
a
(OE)
t
en
(OE)
t
dis
(OE)
t
en
(CE)
1. Shaded areas may be high or low.
2. SanDisk CompactFlash Memory Cards do not assert the -WAIT signal.
Figure 3-1. Common and Attribute Memory Read Timing Diagram