
DS87C530/DS83C530 EPROM/ROM Microcontrollers with Real-Time Clock
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MOVX CHARACTERISTICS USING STRETCH MEMORY CYCLES (continued)
M2
M1
M0
MOVX CYCLES
tMCS
0
2 machine cycles
0
1
3 machine cycles (default)
4 tCLCL
0
1
0
4 machine cycles
8 tCLCL
0
1
5 machine cycles
12 tCLCL
1
0
6 machine cycles
16 tCLCL
1
0
1
7 machine cycles
20 tCLCL
1
0
8 machine cycles
24 tCLCL
1
9 machine cycles
28 tCLCL
EXTERNAL CLOCK CHARACTERISTICS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Clock High Time
tCHCX
10
ns
Clock Low Time
tCLCX
10
ns
Clock Rise Time
tCLCL
5
ns
Clock Fall Time
tCHCL
5
ns
SERIAL PORT MODE 0 TIMING CHARACTERISTICS
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SM2 = 0, 12 clocks per cycle
12tCLCL
Serial Port Clock Cycle
Time
tXLXL
SM2 = 1, 4 clocks per cycle
4tCLCL
ns
SM2 = 0, 12 clocks per cycle
10tCLCL
Output Data Setup to
Clock Rising
tQVXH
SM2 = 1, 4 clocks per cycle
3tCLCL
ns
SM2 = 0, 12 clocks per cycle
2tCLCL
Output Data Hold from
Clock Rising
tXHQX
SM2 = 1, 4 clocks per cycle
tCLCL
ns
SM2 = 0, 12 clocks per cycle
tCLCL
Input Data Hold after
Clock Rising
tXHDX
SM2 = 1, 4 clocks per cycle
tCLCL
ns
SM2 = 0, 12 clocks per cycle
11tCLCL
Clock Rising Edge to
Input Data Valid
tXHDV
SM2 = 1, 4 clocks per cycle
3tCLCL
ns