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M68AW512M
Table 8. Write Mode AC Characteristics
Note: 1. At any given temperature and voltage condition, t
WLQZ
is less than t
WHQX
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.
Symbol Parameter
M68AW512M
Unit
55 70
t
AVAV
Write Cycle Time Min 55 70 ns
t
AVBH
Address Valid to LB, UB High Min 45 60 ns
t
AVBL
Address Valid to LB, UB Low Min 0 0 ns
t
AVEH
Address Valid to Chip Enable High Min 45 60 ns
t
AVEL
Address valid to Chip Enable Low Min 0 0 ns
t
AVWH
Address Valid to Write Enable High Min 45 60 ns
t
AVWL
Address Valid to Write Enable Low Min 0 0 ns
t
BHAX
LB, UB High to Address Transition Min 0 0 ns
t
BHDX
LB, UB High to Input Transition Min 0 0 ns
t
BLBH
LB, UB Low to LB, UB High Min 45 60 ns
t
BLEH
LB, UB Low to Chip Enable High Min 45 60 ns
t
BLWH
LB, UB Low to Write Enable High Min 45 60 ns
t
DVBH
Input Valid to LB, UB High Min 25 30 ns
t
DVEH
Input Valid to Chip Enable High Min 25 30 ns
t
DVWH
Input Valid to Write Enable High Min 25 30 ns
t
EHAX
Chip Enable High to Address Transition Min 0 0 ns
t
EHDX
Chip enable High to Input Transition Min 0 0 ns
t
ELBH
Chip Enable Low to LB, UB High Min 45 60 ns
t
ELEH
Chip Enable Low to Chip Enable High Min 45 60 ns
t
ELWH
Chip Enable Low to Write Enable High Min 45 60 ns
t
WHAX
Write Enable High to Address Transition Min 0 0 ns
t
WHDX
Write Enable High to Input Transition Min 0 0 ns
t
WHQX
(1)
Write Enable High to Output Transition Min 5 5 ns
t
WLBH
Write Enable Low to LB, UB High Min 45 60 ns
t
WLEH
Write Enable Low to Chip Enable High Min 45 60 ns
t
WLQZ
(1,2)
Write Enable Low to Output Hi-Z Max 20 20 ns
t
WLWH
Write Enable Low to Write Enable High Min 45 60 ns
