M68AW512M Ver la hoja de datos (PDF) - STMicroelectronics
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M68AW512M Datasheet PDF : 19 Pages
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M68AW512M
Table 8. Write Mode AC Characteristics
Symbol
Parameter
M68AW512M
Unit
55
70
tAVAV
Write Cycle Time
Min
55
70
ns
tAVBH
Address Valid to LB, UB High
Min
45
60
ns
tAVBL
Address Valid to LB, UB Low
Min
0
0
ns
tAVEH
Address Valid to Chip Enable High
Min
45
60
ns
tAVEL
Address valid to Chip Enable Low
Min
0
0
ns
tAVWH
Address Valid to Write Enable High
Min
45
60
ns
tAVWL
Address Valid to Write Enable Low
Min
0
0
ns
tBHAX
LB, UB High to Address Transition
Min
0
0
ns
tBHDX
LB, UB High to Input Transition
Min
0
0
ns
tBLBH
LB, UB Low to LB, UB High
Min
45
60
ns
tBLEH
LB, UB Low to Chip Enable High
Min
45
60
ns
tBLWH
LB, UB Low to Write Enable High
Min
45
60
ns
tDVBH
Input Valid to LB, UB High
Min
25
30
ns
tDVEH
Input Valid to Chip Enable High
Min
25
30
ns
tDVWH Input Valid to Write Enable High
Min
25
30
ns
tEHAX
Chip Enable High to Address Transition
Min
0
0
ns
tEHDX
Chip enable High to Input Transition
Min
0
0
ns
tELBH
Chip Enable Low to LB, UB High
Min
45
60
ns
tELEH
Chip Enable Low to Chip Enable High
Min
45
60
ns
tELWH
Chip Enable Low to Write Enable High
Min
45
60
ns
tWHAX Write Enable High to Address Transition
Min
0
0
ns
tWHDX Write Enable High to Input Transition
Min
0
0
ns
tWHQX (1) Write Enable High to Output Transition
Min
5
5
ns
tWLBH
Write Enable Low to LB, UB High
Min
45
60
ns
tWLEH
Write Enable Low to Chip Enable High
Min
45
60
ns
tWLQZ (1,2) Write Enable Low to Output Hi-Z
Max
20
20
ns
tWLWH Write Enable Low to Write Enable High
Min
45
60
ns
Note: 1. At any given temperature and voltage condition, tWLQZ is less than tWHQX for any given device.
2. These parameters are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output
voltage levels.
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