K9W4G08U1M
K9K2G08Q0M
K9K2G08U0M
K9W4G16U1M
K9K2G16Q0M
K9K2G16U0M
FLASH MEMORY
System Interface Using CE don’t-care.
For an easier system interface, CE may be inactive during the data-loading or serial access as shown below. The internal
2112byte(X8 device) or 1056word(X16 device) data registers are utilized as separate buffers for this operation and the system design
gets more flexible. In addition, for voice or audio applications which use slow cycle time on the order of u-seconds, de-activating CE
during the data-loading and serial access would provide significant savings in power consumption.
Figure 4. Program Operation with CE don’t-care.
CLE
CE don’t-care
CE
WE
ALE
I/Ox
80h
Address(4Cycles)
Data Input
Data Input
10h
tCS
tCH
tCEA
CE
CE
tREA
tWP
RE
WE
I/O0~7
out
Figure 5. Read Operation with CE don’t-care.
CLE
CE
CE don’t-care
RE
ALE
tR
R/B
WE
I/Ox
Data Output(serial access)
00h
Address(4Cycle)
30h
18
SAMSUNG [ SAMSUNG ]
