W28F641B Datasheet, PDF (24/31 Pages) Winbond – 64MBIT (4MBIT × 16) PAGE MODE DUAL WORK FLASH MEMORY

W28F641B/T
A21-0(A)
V _IH
Note 1
V _IL
V _IH
#CE(E) _{V IL}
Note 2
Valid Address
t AVAV
t _ELWL (t WLEL)
V _IH
#OE(G) _{V IL}
t _PHWL (t PHEL)
V _IH
#WE(W)
V _IL
VIH
DQ15-0(D/Q) _{V IL}
t _WLWH (t ELEH)
D IN
Note 3
Valid Address
t _AVWH (t AVEH)
t_WHEH (t EHWH)
Note 4
Note 5
Valid Address
t _WHAX (t EHAX)
Note 5,6
t _WHGL (t EHGL)
Note 5,6
t _WHWL (t EHEL)
t _DVWH (t DVEH)
t _WHDX (t EHDX)
D IN
t_{WHQV1,2,3 (t EHQV1,2,3)}
t _WHR0 (t EHR0)
Valid
SRD
SR.7(R)
#RESET(P)
#WP(S)
("1")
("0")
V _IH
V _IL
V _IH
V _IL
VPP
(V)
VPPH1,2
V _PPLK
V _IL
t _SHWH(tSHEH)
t _VVWH(tVVEH)
t _QVSL
t _QVVL
Figure 9. AC Waveform for Write Operations
Notes:
1. VDD power-up and standby.
2. Write each first cycle command.
3. Write each second cycle command or valid address and data.
4. Automated erase or program delay.
5. Read status register data.
6. For read operation, #OE and #CE must be driven active, and #WE de-asserted.
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