K524G2GACB-A050 Datasheet, PDF (22/94 Pages) Samsung semiconductor – MCP MEMORY

K524G2GACB-A050
MCP MEMORY
2.5 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
2,112byte(1,056Word) 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 µ-seconds, de-activating CE during the data-loading and serial
access would provide significant savings in power consumption.
Figure 6. Program Operation with CE don’t-care.
CLE
CE
CE don’t-care
WE
ALE
I/Ox
80h Address(5Cycles)
Data Input
Data Input
10h
tCS
tCH
tCEA
CE
CE
tWP
WE
tREA
RE
I/Ox
out
CLE
CE
RE
ALE
R/B
WE
I/Ox
Figure 7. Read Operation with CE don’t-care.
CE don’t-care
tR
00h
Address(5Cycle)
30h
Data Output(serial access)
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Revision 1.3
November 2009