Common Memory Write Timing Specification - SanDisk CompactFlash Product Manual

4.3.9 Common Memory Write Timing
Specification
Table 4-6 Common Memory Write Timing
Item
Data Setup before WE
Data Hold following WE
WE Pulse Width
Address Setup Time
CE Setup before WE
Write Recovery Time
CE Hold following WE
Wait Delay Falling from WE
WE High from Wait Release
Wait Width Time (Default Speed)
Notes: The maximum load on -WAIT is 1 LSTTL with 50pF total load. All times are in nanoseconds.
Din signifies data provided by the system to the CompactFlash Memory Card.
The -WAIT signal may be ignored if the -WE 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.
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION
CompactFlash Memory Card Product Manual
tsu(D-WEH)
th(D)
tw(WE)
tsu(A)
tsu(CE)
trec(WE)
th(CE)
tv(WT-WE)
tv(WT)
tw (WT)
Figure 4-4 Common Memory Write Timing Diagram
Symbol IEEE Symbol
tDVWH
tlWMDX
tWLWH
tAVWL
tELWL
tWMAX
tGHEH
tWLWTV
tWTHWH
tWTLWTH
Min ns. Max ns.
80
30
150
30
0
30
20
35
0
350
33