Intel
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Advanced+ Boot Block Flash Memory (C3)
46 Datasheet
Table 20. Write Operations—64Mbit Density
#Sym Parameter
Density 64 Mbit
UnitProduct 80 ns
V
CC
2.7V–3.6V Note Min
W1
t
PHWL
/
t
PHEL
RP# High Recovery to WE# (CE#) Going Low 4,5 150 ns
W2
t
ELWL
/
t
WLEL
CE# (WE#) Setup to WE# (CE#) Going Low 4,5 0 ns
W3
t
WLWH
/
t
ELEH
WE#(CE#)PulseWidth 1,4,5 60 ns
W4
t
DVWH
/
t
DVEH
Data Setup to WE# (CE#) Going High 2,4,5 40 ns
W5
t
AVWH
/
t
AVEH
Address Setup to WE# (CE#) Going High 2,4,5 60 ns
W6
t
WHEH
/
t
EHWH
CE# (WE#) Hold Time from WE# (CE#) High 4,5 0 ns
W7
t
WHDX
/
t
EHDX
Data Hold Time from WE# (CE#) High 2,4,5 0 ns
W8
t
WHAX
/
t
EHAX
Address Hold Time from WE# (CE#) High 2,4,5 0 ns
W9
t
WHWL /
t
EHEL
WE#(CE#)PulseWidthHigh 1,4,5 30 ns
W10
t
VPWH
/
t
VPEH
V
PP
Setup to WE# (CE#) Going High 3,4,5 200 ns
W11 t
QVVL
V
PP
Hold from Valid SRD 3,4 0 ns
W12
t
BHWH
/
t
BHEH
WP#SetuptoWE#(CE#)GoingHigh 3,4 0 ns
W13 t
QVBL
WP# Hold from Valid SRD 3,4 0 ns
W14 t
WHGL
WE#HightoOE#GoingLow 3,4 30 ns
NOTES:
1. Write pulse width (t
WP
) is defined from CE# or WE# going low (whichever goes low last) to CE# or
WE# going high (whichever goes high first). Hence, t
WP
=t
WLWH
=t
ELEH
=t
WLEH
=t
ELWH
.
Similarly, write pulse width high (t
WPH
) is defined from CE# or WE# going high (whichever goes
high first) to CE# or WE# going low (whichever goes low last). Hence,
t
WPH
=t
WHWL
=t
EHEL
=t
WHEL
=t
EHWL
.
2. Refer to Table 7, “Command Bus Operations” on page 24 for valid A
IN
or D
IN
.
3. Sampled, but not 100% tested.
4. See Figure 11, “AC Input/Output Reference Waveform” on page 49 for timing measurements and
maximum allowable input slew rate.
5. See
Figure 9, “Write Operations Waveform” on page 47.
