ISSUE 4.7 : NOVEMBER 1998
MFM8516 - 70/90/12/15
Write/Erase/Program Alternate CS 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
sec
us
-
-
Data hold Time
tDH
-
-
-
-
Output Enable Setup Time
Read Recover before Write
WE setup time
tOES
0
-
-
0
-
-
tGHEL
tWS
0
-
-
0
-
-
0
-
-
0
-
-
WE hold time
tWH
0
-
-
0
-
-
CS Pulse Width
tCP
35
20
-
-
-
-
45
20
-
-
-
-
CS Pulse Width High
Programming operation
Sector Erase operation (1)
Chip Erase operation (1)
Vcc setup time (2)
tCPH
tWHWH1
tWHWH2
tWHWH3
tVCS
-
-
16
2
14
50
-
16
2
14
50
-
-
30
120
-
-
30
120
-
-
-
-
-
Parameter
Symbol
120
typ
150
typ
min
max
min
max
unit
Write Cycle time (2)
Address Setup time
tWC
tAS
120
0
-
-
-
-
150
0
-
-
-
-
ns
ns
Address Hold time
Data Setup Time
tAH
tDS
50
50
0
-
-
-
50
50
0
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
us
sec
sec
us
-
-
Data hold Time
tDH
-
-
-
-
Output Enable Setup Time
Read Recover before Write
WE setup time
tOES
0
-
-
0
-
-
tGHEL
tWS
0
-
-
0
-
-
0
-
-
0
-
-
WE hold time
tWH
0
-
-
0
-
-
CS Pulse Width
tCP
50
20
-
-
-
-
50
20
-
-
-
-
CS Pulse Width High
Programming operation
Sector Erase operation (1)
Chip Erase operation (1)
Vcc setup time (2)
tCPH
tWHWH1
tWHWH2
tWHWH3
tVCS
-
-
16
2
14
50
-
16
2
14
50
-
-
30
120
-
-
30
120
-
-
-
-
-
Note: (1) Does not include pre-programming time.
(2) Not 100% tested.
6
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