Rainbow-electronics ATmega64C1 Manuale Utente Scaricare il pdf (Pagina 313)

100

101

313

7647A–AVR–02/08

ATmega32/64/M1/C1

Figure 25-2. Maximum Frequency vs. V

, ATmega32/64/M1/C1

25.6 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 5.5V4.5V

Table 3. PLL Characteristics - V

= 2.7V to 5.5V (unless otherwise noted)

Symbol Parameter Min. Typ. Max. Units

PLL

Input Frequency 0.5 1 2 MHz

PLL

PLL Factor 64

PLL

Lock-in Time 64 µS

1 2 ... 308 309 310 311 312 313 314 315 316 317 318 ... 365 366

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