ISSUE 4.2 : November 1998
PUMA 68F4006/A-70/90/12
Write/Erase/Program Alternate CE controlled Writes
Parameter
Symbol
70
90
min
typ
max
min
typ
max
unit
Write Cycle time (2)
Address Setup time
tWC
tAS
70
0
-
-
-
-
90
0
-
-
-
-
ns
ns
Address Hold time
Data Setup Time
tAH
tDS
45
30
0
-
-
-
-
45
45
0
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
us
sec
us
Data hold Time
tDH
-
-
-
-
Output Enable Setup Time
Read Recover before Write
WE setup time
tOES
tGHEL
tWS
0
-
-
0
-
-
0
-
-
0
-
-
0
-
-
0
-
-
WE hold time
tWH
0
-
-
0
-
-
CE Pulse Width
tCP
35
20
-
-
-
45
20
-
-
-
CE Pulse Width High
Programming operation
Sector Erase operation (1)
Vcc setup time (2)
tCPH
tWHWH1
tWHWH2
tVCS
-
-
-
-
14
1
50
-
14
1
50
-
-
30
-
-
30
-
-
-
Parameter
Symbol
120
typ
min
max
unit
Write Cycle time (2)
Address Setup time
tWC
tAS
120
0
-
-
-
-
ns
ns
Address Hold time
Data Setup Time
tAH
tDS
50
50
0
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
us
sec
us
Data hold Time
tDH
-
-
Output Enable Setup Time
Read Recover before Write
WE setup time
tOES
tGHEL
tWS
0
-
-
0
-
-
0
-
-
WE hold time
tWH
0
-
-
CE Pulse Width
tCP
50
20
-
-
-
CE Pulse Width High
Programming operation
Sector Erase operation (1)
Vcc setup time (2)
tCPH
tWHWH1
tWHWH2
tVCS
-
-
14
1
50
-
-
30
-
-
Note: (1) Does not include pre-programming time.
(2) Not 100% tested.
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