ATmega88PA Automotive Atmel Corporation, ATmega88PA Automotive Datasheet - Page 317

• Manufacturer Part Number: ATmega88PA Automotive
• Manufacturer: Atmel Corporation

29.4
29.4.1
Table 29-3.
29.4.2
29.4.3
Table 29-4.
9223B–AVR–09/11
Default 3V Factory
Calibration
5V Factory
Calibration
Symbol
1/t
t
t
t
t
t
Note:
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
Clock Characteristics
All DC Characteristics contained in this datasheet are based on simulation and characterization of other AVR microcontrollers
manufactured in the same process technology. These values are preliminary values representing design targets, and will be
updated after characterization of actual silicon.
Calibrated Internal RC Oscillator Accuracy
External Clock Drive Waveforms
External Clock Drive
Calibration Accuracy of Internal RC Oscillator
External Clock Drive
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from one
clock cycle to the next
Figure 29-2. External Clock Drive Waveforms
Frequency
Atmel ATmega48PA/88PA/168PA [Preliminary]
8.0MHz
8.0MHz
V
Min.
500
200
200
V
IL1
0
CC
V
= 1.8 - 5.5V
IH1
Max.
1.8V - 5.5V
4.5V - 5.5V
2.0
2.0
2
2
V
3V
5V
CC
Min.
125
V
50
50
0
CC
= 2.7 - 5.5V
–40°C - 125°C
–40°C - 125°C
Max.
Temperature
1.6
1.6
8
2
25°C
25°C
Min.
62.5
V
25
25
0
CC
= 4.5 - 5.5V
Calibration Accuracy
Max.
0.5
0.5
16
2
±14%
±10%
±1%
±1%
Units
MHz
ns
ns
ns
µs
µs
%
317