28F004BE Ver la hoja de datos (PDF) - Intel
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28F004BE Datasheet PDF : 57 Pages
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4-MBIT SmartVoltage BOOT BLOCK FAMILY
E
NOTES:
See WE# Controlled Write Operations for notes 1 through 11.
12. Chip-Enable controlled writes: write operations are driven by the valid combination of CE# and WE# in systems where
CE# defines the write pulse-width (within a longer WE# timing waveform), all set-up, hold and inactive WE# times should
be measured relative to the CE# waveform.
1
VIH
ADDRESSES (A)
VIL
VIH
WE# (W)
2
AIN
t AVAV
3
AIN
t AVEH
4
t EHAX
VIL
VIH
t
WLEL
OE# (G)
tEHWH
VIL
VIH
CE# (E)
t EHEL
t EHQV1,2,3,4
VIL
t ELEH
t DVEH
VIH
DATA (D/Q)
VIL
High Z
t EHDX
DIN
DIN
6.5V VHH
t PHEL
tPHHEH
RP# (P) VIH
VIL
VIH
WP# VIL
VPPH 2
VPPH1
V (V)
PP
VPPLK
VIL
t VPEH
NOTES:
1. VCC Power-Up and Standby.
2. Write Program or Erase Setup Command.
3. Write Valid Address and Data (Program) or Erase Confirm Command.
4. Automated Program or Erase Delay.
5. Read Status Register Data.
6. Write Read Array Command.
5
6
Valid
SRD
DIN
tQVPH
t QVVL
0530_18
Figure 18. Alternate AC Waveforms for Write Operations (CE#–Controlled Writes)
42
PRELIMINARY
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