Maxim Integrated DS80C390 - Manual (Page 52)

DS80C390
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NON-MULTIPLEXED 9 CYCLE DATA MEMORY 3 - CE0 WRITE
t
MCS
TIME PERIODS
System Clock Selection
2X 4X/
CD1 CD0 t
MCS
1 0 0 1 t
CLCL
0 0 0 2 t
CLCL
X 1 0 4 t
CLCL
X 1 1 1024 t
CLCL
EXTERNAL CLOCK CHARACTERISTICS
PARAMETER SYMBOL MIN MAX UNITS
Clock high time t
CHCX
8 ns
Clock low time t
CLCX
8 ns
Clock rise time t
CLCH
4 ns
Clock fall time t
CHCL
4 ns
EXTERNAL CLOCK DRIVE