IA186ES/IA188ES
Data Sheet
8-Bit/16-Bit Microcontrollers
November 15, 2011
Table 86. Clock Timing
a
a
No.
Name
Description
Min
Max
clkin Requirements
36 tCKIN
37 tCLCK
38 tCHCK
39 tCKHL
40 tCKLH
x1 Period
25
66
–
–
5
5
x1 Low Time
x1 High Time
x1 Fall Time
x1 Rise time
7.5
7.5
–
–
clkout Requirements
42 tCLCL
43 tCLCH
44 tCHCL
45 tCH1CH2
46 tCL2CL1
61 tLOCK
69 tCICOA
70 tCICOB
clkouta Period
25
tCLCL/2
tCLCL/2
–
–
–
3
3
0.5
25
35
clkouta Low Time
clkouta High Time
clkouta Rise Time
clkouta Fall Time
Maximum PLL Lock Time
x1 to clkouta Skew
x1 to clkoutb Skew
0
0
–
–
–
a
In nanoseconds.
0ns
20ns
40ns
60ns
80ns
100ns
120ns
clkouta
47
srdy
48
Figure 23. srdy—Synchronous Ready
®
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