Datasheet

266
ATmega162/V
2513G–AVR–03/05
External Clock Drive
Waveforms
Figure 115. External Clock Drive Waveforms
External Clock Drive
V
IL1
V
IH1
Table 113. External Clock Drive
Symbol Parameter
V
CC
= 1.8 - 5.5V V
CC
=2.7 - 5.5V V
CC
= 4.5 - 5.5V
UnitsMin. Max. Min. Max. Min. Max.
1/t
CLCL
Oscillator
Frequency
0108016MHz
t
CLCL
Clock Period 1000 125 62.5 ns
t
CHCX
High Time 400 50 25 ns
t
CLCX
Low Time 400 50 25 ns
t
CLCH
Rise Time 2.0 1.6 0.5 µs
t
CHCL
Fall Time 2.0 1.6 0.5 µs
∆t
CLCL
Change in
period from one
clock cycle to
the next
22 2%