W28V400B Datasheet, PDF (34/48 Pages) Winbond – 4M(512K x 8/256K x 16) SMARTVOLTAGE FLASH MEMORY

W28V400B/T
V_DD = 3.3V ±0.3V, TA = 0 ° C to +70° C
PARAMETER
Write Cycle Time
#RESET High Recovery to #WE Going Low (Note 2)
#CE Setup to #WE Going Low
#WE Pulse Width
#RESET V_HH Setup to #WE Going High (Note 2)
#WP V_IH Setup to #WE Going High (Note 2)
V_PP Setup to #WE Going High (Note 2)
Address Setup to #WE Going High (Note 3)
Data Setup to #WE Going High (Note 3)
Data Hold from #WE High
Address Hold from #WE High
#CE Hold from #WE High
#WE Pulse Width High
#WE High to RY/#BY Going Low
Write Recovery before Read
V_PP Hold from Valid SRD, RY/#BY High (Note 2, 4)
#RESET V_HH Hold from Valid (Note 2, 4)
#WP V_IH Hold from Valid SRD, RY/#BY High (Note 2, 4)
#BYTE Setup to #WE Going High (Note 7)
#BYTE Hold from #WE High (Note 7)
SYM.
t_AVAV
t_PHWL
t_ELWL
t_WLWH
T_PHHWH
t_SHWH
t_VPWH
t_AVWH
t_DVWH
t_WHDX
t_WHAX
t_WHEH
t_WHWL
t_WHRL
t_WHGL
t_QVVL
T_QVPH
t_QVSL
t_FVWH
t_WHFV
Note: See 5.0V V_DD AC Characteristics - Write Operations for notes 1 through 7.
MIN.
100
1
10
50
100
100
100
50
50
0
5
10
30
0
0
0
0
50
100
MAX.
100
UNIT
nS
µS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
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