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AT90PWM2 데이터시트(PDF) 302 Page - ATMEL Corporation

부품명 AT90PWM2
상세설명  8-bit Microcontroller with 8K Bytes In-System Programmable Flash
PDF  361 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
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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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