M28W320BT Datasheet, PDF (24/43 Pages) STMicroelectronics – 32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory

M28W320BT, M28W320BB
Table 14. Write AC Characteristics, Chip Enable Controlled
Symbol
Alt
Parameter
t_AVAV
t_WC Write Cycle Time
Min
t_AVEH
t_AS Address Valid to Chip Enable High
Min
t_DVEH
t_DS Data Valid to Chip Enable High
Min
t_EHAX
t_AH Chip Enable High to Address Transition Min
t_EHDX
t_DH Chip Enable High to Data Transition
Min
t_EHEL
t_CPH Chip Enable High to Chip Enable Low
Min
t_EHGL
Chip Enable High to Output Enable Low Min
t_EHWH
t_WH Chip Enable High to Write Enable High
Min
t_ELEH
t_CP Chip Enable Low to Chip Enable High
Min
t_ELQV
Chip Enable Low to Output Valid
Min
t_QVVPL ^(1,2)
Output Valid to V_PP Low
Min
t_QVWPL
Data Valid to Write Protect Low
Min
t_VPHEH ^{(1) t}VPS ^VPP ^{High to Chip Enable High}
Min
t_WLEL
t_CS Write Enable Low to Chip Enable Low
Min
t_WPHEH
Write Protect High to Chip Enable High
Min
Note: 1. Sampled only, not 100% tested.
2. Applicable if V_PP is seen as a logic input (V_PP < 3.6V).
M28W320B
70
85
90
70
85
90
45
45
50
45
45
50
0
0
0
0
0
0
25
25
30
25
25
30
0
0
0
45
45
50
70
85
90
0
0
0
0
0
0
200 200 200
0
0
0
45
45
50
Unit
100
100 ns
50 ns
50 ns
0
ns
0
ns
30 ns
30 ns
0
ns
50 ns
100 ns
0
ns
0
ns
200 ns
0
ns
50 ns
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