256Mb: 3V Embedded Parallel NOR Flash
Write AC Characteristics
Table 37: CE#-Controlled Write AC Characteristics
80ns
70ns
VCCQ = VCC
VCCQ = 1.65V to
VCC
Parameter
Symbol
Legacy
tWC
tWS
tCP
tDS
tDH
tWH
tCPH
tAS
tAH
–
Unit
JEDEC
tAVAV
tWLEL
tELEH
tDVEH
tEHDX
tEHWH
tEHEL
tAVEL
tELAX
tGHEL
Min
Max
Min
85
0
Max
Address valid to next address valid
WE# LOW to CE# LOW
75
0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CE# LOW to CE# HIGH
35
45
0
35
45
0
Input valid to CE# HIGH
CE# HIGH to input transition
CE# HIGH to WE# HIGH
CE# HIGH to CE# LOW
0
0
30
0
30
0
Address valid to CE# LOW
CE# LOW to address transition
OE# HIGH to CE# LOW
45
0
45
0
PDF: 09005aef84ecabef
m29dw_256g.pdf - Rev. A 10/12 EN
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70
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