AT90PWM2B-16SU View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT90PWM2B-16SU
Atmel Corporation
AT90PWM2B-16SU Datasheet PDF : 365 Pages
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AT90PWM2/3/2B/3B
5. Minimum VCC for Power-down is 2.5V.
6. The Analog Comparator Propagation Delay equals 1 comparator clock plus 30 nS. See “Analog Comparator” on page 227.
for comparator clock definition.
26.3 External Clock Drive Characteristics
26.3.1 Calibrated Internal RC Oscillator Accuracy
Table 26-1. Calibration Accuracy of Internal RC Oscillator
Factory
Calibration
Frequency
VCC
8.0 MHz
3V
User
Calibration
7.3 - 8.1 MHz
2.7V - 5.5V
Temperature
25C
-40C - 85C
Calibration Accuracy
±10%
±1%
26.3.2
External Clock Drive Waveforms
Figure 26-1. External Clock Drive Waveforms
VIH1
VIL1
26.3.3 External Clock Drive
Table 26-2. External Clock Drive
Symbol
1/tCLCL
tCLCL
tCHCX
tCLCX
tCLCH
tCHCL
tCLCL
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from one
clock cycle to the next
VCC=2.7-5.5V
Min.
Max.
0
10
100
40
40
1.6
1.6
2
VCC=4.5-5.5V
Min.
Max.
0
20
50
20
20
0.5
0.5
2
Units
MHz
ns
ns
ns
s
s
%
4317K–AVR–03/2013
303
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