IA186EB Datasheet, PDF (56/85 Pages) InnovASIC, Inc – 8-Bit/16-Bit Microcontrollers

IA186EB/IA188EB
8-Bit/16-Bit Microcontrollers
Data Sheet
July 10, 2011
5.2 Clock Input and Clock Output Timing Characteristics
For clock input and clock output timing characteristics for both 5.0- and 3.3-volt operation, see
Tables 18 and 19, respectively.
Figure 16. Clock Input and Clock Output Timing Characteristics
Table 18. Clock Input and Clock Output Timing Characteristics for 5.0-Volt Operation
Item Symbol Parameter
Min
–
XTF
clkin
0
Frequency
1 TCKIN clkin Period
20
Max Units
50
MHz –
∞
ns –
Notes
2 TCHCK clkin High
10
Time
∞
ns Measure for VIH for high time, NIL for
low time.
3 TCLCK
clkin Low
10
∞
ns Measure for VIH for high time, NIL for
Time
low time.
4 TCKLH
clkin Rise
1
5
ns Only required to guarantee ICC.
Time
Maximum limits are bounded for TC,
TCH, and TCL.
5 TCKHL
clkin Fall
1
5
ns Only required to guarantee ICC.
Time
Maximum limits are bounded for TC,
TCH, and TCL.
6 TCICO clkin to clkout
0
11.5
ns Specified for a 50-pF load.
Delay
7 TCLCL clkout Period
–
2TCKIN ns –
8 TCHCL clkout High (TCLCL/2) (TCLCL/2) ns Measure for VIH for high time, NIL for
Time
–5
+5
low time.
9 TCCCH clkout Low (TCLCL/2) (TCLCL/2) ns Measure for VIH for high time, NIL for
Time
–5
+5
low time.
10 TCH1CH2 clkout Rise
1
6
ns Specified for a 50-pF load.
Time
11 TCL2CL1 clkout Fall
1
6
ns Specified for a 50-pF load.
Time
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