W28V400B Datasheet, PDF (40/48 Pages) Winbond – 4M(512K x 8/256K x 16) SMARTVOLTAGE FLASH MEMORY

W28V400B/T
VIH
Address(A)
VIL
#CE(E) ^VIH
VIL
VIH
#OE(G) _VIL
VIH
#WE(W)
VIL
VIH
DATA(D/Q) _VIL
V _IH
#BYTE(F)
V _IL
RY/#BY(R)
VOH
VOL
#WP(S) ^VIH
V _IL
1
2
3
4
A _IN
t _AVAV
A _IN
t AVEH
tEHEL
t_ELEH
t_DVEH
t EHAX
t _EHGL
t WLEL
HIGH Z
t PHEL
t EHWH
t EHDX
D _IN
t _FVEH
D _IN
t EHQV1,2
t _EHFV
t _EHRL
t
t _SHEH
#RESET(P)
VHH
V _IH
V _IL
VPPH3,2,1
VPP (V) _VPPLK
V _IL
t _PHHEH
t _VPEH
5
6
Valid
SRD
D _IN
t _QVSL
t _QVPH
t _QVVL
Figure 16. AC Waveform for #CE-Controlled Write Operations
Notes:
1. V_DD power-up and standby.
2. Write block erase or word/byte write setup.
3. Write block erase confirm or valid address and data.
4. Automated erase or program delay.
5. Read status register data.
6. Write Read Array command.
- 40 -