28F004/400B3, 28F008/800B3, 28F016/160B3, 28F320B3, 28F640B3
AC Characteristics—Write Operations, continued
Density
Product
64 Mbit
90 ns
100 ns
#
Sym
Parameter
Unit
2.7 V –
3.6 V
2.7 V –
3.6 V
V
CC
Note
Min
Min
t
/
PHWL
W1
W2
W3
W4
W5
W6
W7
W8
W9
RP# High Recovery to WE# (CE#) Going Low
CE# (WE#) Setup to WE# (CE#) Going Low
WE# (CE#) Pulse Width
150
150
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
PHEL
t
/
ELWL
0
60
40
60
0
0
70
40
60
0
t
WLEL
t
t
/
ELEH
1
2
2
WLWH
t
/
DVWH
Data Setup to WE# (CE#) Going High
Address Setup to WE# (CE#) Going High
CE# (WE#) Hold Time from WE# (CE#) High
Data Hold Time from WE# (CE#) High
Address Hold Time from WE# (CE#) High
WE# (CE#) Pulse Width High
t
DVEH
t
/
/
AVWH
t
AVEH
t
t
t
t
t
WHEH
t
EHWH
/
WHDX
2
2
1
0
0
t
EHDX
/
WHAX
0
0
t
EHAX
WHWL /
30
30
t
EHEL
/
VPWH
W10
W11
V
V
Setup to WE# (CE#) Going High
Hold from Valid SRD
3
3
200
0
200
0
ns
ns
PP
PP
t
VPEH
t
QVVL
NOTES:
1. Refer to command definition table (Table 6) for valid A or D
.
IN
IN
2. Write pulse width (t ) is defined from CE# or WE# going low (whichever goes low last)to CE# or WE# going
WP
high (whichever goes high first). Hence, t
= t
= t
= t
= t
. Similarly, Write pulse width
WP
WLWH
ELEH
WLEH
ELWH
high (t
) is defined from CE# or WE# going high (whichever goes high first) to CE# or WE# going low
WPH
(whichever goes low first). Hence, t
3. Sampled, but not 100% tested.
= t
= t
= t
= t
.
WPH
WHWL
EHEL
WHEL
EHWL
Read timing characteristics during program suspend and erase suspend are the same as during read-only
operations.
See Figure 5 for timing measurements and maximum allowable input slew rate.
See Figure 8, “AC Waveform: Program and Erase Operations” on page 32.
30
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