DS80C390_05 Datasheet, PDF (21/53 Pages) Dallas Semiconductor – Dual CAN High-Speed Microprocessor

DS80C390 Dual CAN High-Speed Microprocessor
Figure 24. Nonmultiplexed 9-Cycle Data Memory CE0-3 Write
t_MCS TIME PERIODS
SYSTEM CLOCK SELECTION
4X/2X
1
0
X
X
CD1
0
0
1
1
CD0
0
0
0
1
t_MCS
1 t_CLCL
2 t_CLCL
4 t_CLCL
1024 t_CLCL
EXTERNAL CLOCK CHARACTERISTICS
PARAMETER
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
SYMBOL
t_CHCX
t_CLCX
t_CLCH
t_CHCL
MIN
8
8
Figure 25. External Clock Drive
MAX
4
4
UNITS
ns
ns
ns
ns
21 of 53