DS80CH11 Datasheet, PDF (78/88 Pages) Dallas Semiconductor – System Energy Manager

DS80CH11
13.3.3 EXTERNAL CLOCK CHARACTERISTICS
PARAMETER
SYMBOL MIN
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
t_CHCX
20
t_CLCX
20
t_CLCH
t_CHCL
13.3.4 SERIAL PORT MODE 0 TIMING
CHARACTERISTICS
PARAMETER
SYMBOL MIN
Serial Port Clock Cycle Time
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
t_XLXL
Output Data Setup to Clock Rising
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
t_QVXH
Output Data Hold from Clock Rising
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
t_XHQX
Input Data Hold after Clock Rising
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
t_XHDX
Clock Rising Edge to Input
Data Valid
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
t_XHDV
TYP
TYP
12t_CLCL
4t_CLCL
10t_CLCL
3t_CLCL
2t_CLCL
t_CLCL
t_CLCL
t_CLCL
11t_CLCL
3t_CLCL
(0°C to 70°C; V_CC=5.0 ± 10%)
MAX
UNITS NOTES
ns
ns
10
ns
10
ns
(0°C to 70°C; V_CC=5.0 ± 10%)
MAX
UNITS NOTES
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
EXPLANATION OF AC SYMBOLS
In an effort to remain compatible with the original 8051 family, this device specifies the same parameters as such
devices, using the same symbols. For completeness, the following is an explanation of the symbols.
t
Time
A Address
C Clock
D Input data
H Logic level high
L Logic level low
I
Instruction
P PSEN
Q Output data
R RD signal
V Valid
W WR signal
X No longer a valid logic level
Z Tri–state
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