Table of Contents
Advertisement
External Clock Drive Waveforms
Figure 33. External Clock
VIL1
External Clock Drive ATtiny10/11
Symbol
Parameter
1/t
Oscillator Frequency
CLCL
t
Clock Period
CLCL
t
High Time
CHCX
t
Low Time
CLCX
t
Rise Time
CLCH
t
Fall Time
CHCL
External Clock Drive ATtiny12
Symbol
Parameter
1/t
Oscillator Frequency
CLCL
t
Clock Period
CLCL
t
High Time
CHCX
t
Low Time
CLCX
t
Rise Time
CLCH
t
Fall Time
CHCL
Table 29. External RC Oscillator, Typical Frequencies
R [kΩ]
100
31.5
6.5
Note:
R should be in the range 3-100 kΩ, and C should be at least 20 pF. The C values given in the table includes pin capacitance.
This will vary with package type.
VIH1
V
= 2.7V to 4.0V
CC
Min
0
500
200
200
V
= 1.8V to 2.7V
CC
Min
0
1000
400
400
Max
2
1.6
1.6
V
= 2.7V to 4.0V
CC
Max
Min
1
0
250
100
100
1.6
1.6
C [pF]
70
20
20
ATtiny10/11/12
V
= 4.0V to 5.5V
CC
Min
Max
0
6
167
67
67
0.5
0.5
V
= 4.0V to 5.5V
CC
Max
Min
4
0
125
50
50
1.6
1.6
100 kHz
1.0 MHz
4.0 MHz
Units
MHz
ns
ns
ns
µs
µs
Max
Units
8
MHz
ns
ns
ns
0.5
µs
0.5
µs
f
53
Advertisement
Table of Contents
