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-55
-70
-90
-120
JEDEC
Std
Symbol Symbol
Parameter
Min Max Min Max Min Max Min Max
Unit
ns
tAVAV
tWC
tAS
tAH
tDS
tDH
tOES
Write cycle time
55
0
-
-
-
-
-
-
-
70
0
-
-
-
-
-
-
-
90
0
-
-
-
-
-
-
-
120
0
-
-
-
-
-
-
-
tAVWL
tWLAX
tDVWH
tWHDX
Address setup time
Address hold time
Data setup time
ns
40
25
0
45
30
0
45
45
0
50
50
0
ns
ns
Data hold time
ns
Output enable setup time
Output enable hold time: Read
0
0
0
0
ns
0
0
0
0
ns
tOEH
Output enable hold time:
Toggle and DATA polling
10
-
10
-
10
-
10
-
ns
tREADY
tRP
tGHWL
tCS
RESET pin low to read mode
RESET
20
500
0
-
-
-
-
-
-
-
-
-
20
500
0
-
-
-
-
-
-
-
-
-
20
500
0
-
-
-
-
-
-
-
-
-
20
500
0
-
-
-
-
-
-
-
-
-
µs
ns
ns
ns
ns
ns
ns
µs
sec
tGHWL
tELWL
Read recover time before write
CE setup time
0
0
0
0
tWHEH
tWLWH
tWHWL
tCH
CE hold time
0
0
0
0
tWP
Write pulse width
Write pulse width high
35
20
50
0.3
35
20
50
0.3
45
20
50
0.3
50
20
50
0.3
tWPH
tWHWH1 tWHWH1 Programming pulse time
tWHWH2 tWHWH2 Erase pulse time
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3rd bus cycle
tAS
DATA polling
tWC
5555h
Program address
tAH
Program address
Addresses
CE
tCH
tGHWL; tOES
OE
tWP
tWHWH1 or 2
WE
tCS
tWPH
tDH
Program
data
A0h
DQ7
D
OUT
DATA
tDS
V
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46
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
