3.3V Single-Piece 4Mb Nonvolatile SRAM
with Clock
Write Cycle 1
ADDRESSES
CE
OR
CS
WE
DOUT
DIN
(SEE NOTES 2, 3, 4, 6, 10–13.)
tWC
VIH
VIH
VIH
VIL
VIL
VIL
tAW
VIL
VIL
tWP
tWR1
VIH
tODW
VIL
VIL
HIGH
IMPEDANCE
VIH
tOEW
tDS
tDH1
VIH
VIH
DATA IN STABLE
VIL
VIL
ADDRESSES
CE
OR
CS
WE
VIH
VIL
tAW
VIH
VIL
tCOE
tWC
tWP
VIL
VIL
VIL
VIL
tODW
VIH
VIL
tWR2
VIH
VIH
Write Cycle 2
VIH
VIL
DOUT
DIN
(SEE NOTES 2, 3, 5, 6, 10–13.)
tDS
tDH2
VIH
VIH
DATA IN STABLE
VIL
VIL
6 _____________________________________________________________________