K9F1208Q0A K9F1216Q0A
K9F1208D0A K9F1216D0A
K9F1208U0A K9F1216U0A
FLASH MEMORY
System Interface Using CE don’t-care.
For an easier system interface, CE may be inactive during the data-loading or sequential data-reading as shown below. The internal
528byte 1264word page registers are utilized as separate buffers for this operation and the system design gets more flexible. In addi-
tion, for voice or audio applications which use slow cycle time on the order of u-seconds, de-activating CE during the data-loading and
reading would provide significant savings in power consumption.
Figure 7. Program Operation with CE don’t-care.
CLE
CE don’t-care
CE
WE
ALE
80h
Start Add.(4Cycle)
Data Input
Data Input
10h
I/OX
tCS
tCH
tCEA
CE
CE
tREA
RE
tWP
WE
I/OX
out
Figure 8. Read Operation with CE don’t-care.
On K9F1208U0A-Y,P or K9F1208U0A-V,F
CE must be held
low during tR
CLE
CE don’t-care
CE
RE
ALE
tR
R/B
WE
Data Output(sequential)
I/OX
00h
Start Add.(4Cycle)
21
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