ATMEGA48V_06 ATMEL [ATMEL Corporation], ATMEGA48V_06 Datasheet - Page 306

• Manufacturer Part Number: ATMEGA48V_06
• Description: 8-bit Microcontroller with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

27.4
27.4.1
Table 27-1.
Notes:
27.4.2
27.4.3
306
Factory
Calibration
User
Calibration
Clock Characteristics
1. Voltage range for ATmega48V/88V/168V.
2. Voltage range for ATmega48/88/168.
ATmega48/88/168
Calibrated Internal RC Oscillator Accuracy
External Clock Drive Waveforms
External Clock Drive
Calibration Accuracy of Internal RC Oscillator
Figure 27-3. External Clock Drive Waveforms
Table 27-2.
Note:
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
7.3 - 8.1 MHz
Frequency
8.0 MHz
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 pre-
liminary values representing design targets, and will be updated after characterization of actual
silicon.
Parameter
Oscillator
Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period
from one clock
cycle to the next
V
External Clock Drive
IL1
V
IH1
1.8V - 5.5V
2.7V - 5.5V
V
3V
Min.
CC
250
100
100
V
0
CC
=1.8-5.5V
(1)
(2)
Max.
2.0
2.0
4
2
Min.
Temperature
100
-40°C - 85°C
V
40
40
0
CC
25°C
=2.7-5.5V
Max.
1.6
1.6
10
2
Min.
V
50
20
20
0
Calibration Accuracy
CC
=4.5-5.5V
Max.
±10%
±1%
0.5
0.5
20
2
2545J–AVR–12/06
Units
MHz
ns
ns
ns
μs
μs
%