DS80CH11 Maxim, DS80CH11 Datasheet - Page 78

• Manufacturer Part Number: DS80CH11
• Description: The system energy manager is a highly integrated microcontroller that provides several key features for systems including key scanning and control, battery and power management, as well as two 2-Wire serial I/O Ports
• Manufacturer: Maxim

13.3.3 EXTERNAL CLOCK CHARACTERISTICS
13.3.4 SERIAL PORT MODE 0 TIMING
CHARACTERISTICS
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
A
C
D
H
L
I
P
Q
R
V
W
X
Z
DS80CH11
011200 78/88
PARAMETER
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
PARAMETER
Serial Port Clock Cycle Time
Output Data Setup to Clock Rising
Output Data Hold from Clock Rising
Input Data Hold after Clock Rising
Clock Rising Edge to Input
Data Valid
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
SM2=0, 12 clocks per cycle
SM2=1, 4 clocks per cycle
Time
Address
Clock
Input data
Logic level high
Logic level low
Instruction
PSEN
Output data
RD signal
Valid
WR signal
No longer a valid logic level
Tri–state
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
t
CHCX
CLCH
CHCL
QVXH
XHQX
XHDX
XHDV
CLCX
XLXL
MIN
MIN
20
20
12t
10t
11t
4t
3t
2t
3t
t
t
t
TYP
TYP
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
MAX
MAX
(0 C to 70 C; V
(0 C to 70 C; V
10
10
UNITS
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CC
CC
=5.0
=5.0
NOTES
NOTES
10%)
10%)