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AT90PWM2 Fiches technique(PDF) 302 Page - ATMEL Corporation

No de pièce AT90PWM2
Description  8-bit Microcontroller with 8K Bytes In-System Programmable Flash
PDF  361 Pages
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Fabricant  ATMEL [ATMEL Corporation]
Site Internet  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90PWM2 Fiches technique(HTML) 302 Page - ATMEL Corporation

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4317J–AVR–08/10
AT90PWM2/3/2B/3B
26.4
Maximum Speed vs. V
CC
Maximum frequency is depending on V
CC. As shown in Figure 26-2 , the Maximum Frequency
equals 8Mhz when V
CC is contained between 2.7V and 4.5V and equals 16Mhz when VCC is
contained between 4.5V and 5.5V.
Figure 26-2. Maximum Frequency vs. V
CC, AT90PWM2/2B/3/3B
26.5
PLL Characteristics
.
Note:
While connected to external clock or external oscillator, PLL Input Frequency must be selected to
provide outputs with frequency in accordance with driven parts of the circuit (CPU core, PSC...)
Safe Operating Area
16Mhz
8Mhz
2.7V
5.5V
4.5V
Table 26-3.
PLL Characteristics - V
CC = 2.7V to 5.5V (unless otherwise noted)
Symbol
Parameter
Min.
Typ.
Max.
Units
PLLIF
Input Frequency
0.5
1
2
MHz
PLLF
PLL Factor
64
PLLLT
Lock-in Time
64
µS



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