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4.3.9
Common Memory Write Timing
Specification
Table 4-6 Common Memory Write Timing
Item
Data Setup before WE
Data Hold following WE
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
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 SDP3B FlashDisk.
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 SDP3B FlashDisk Product Manual © 1998 SANDISK CORPORATION
tsu(D-WEH)
WE Pulse Width
(Default Speed)
Figure 4-4 Common Memory Write Timing Diagram
SDP3B FlashDisk Product Manual
Symbol
IEEE Symbol
tDVWH
th(D)
tlWMDX
tw(WE)
tWLWH
tsu(A)
tAVWL
tsu(CE)
tELWL
trec(WE)
tWMAX
th(CE)
tGHEH
tv(WT-WE)
tWLWTV
tv(WT)
tWTHWH
tw (WT)
tWTLWTH
Min ns.
Max ns.
80
30
150
30
0
30
20
35
0
350
33
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