PD70F3559 datasheet(27/85 Pages) RENESAS

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R01DS0142ED0100

Data Sheet

Chapter 4

Clock generators

Chapter 4 Clock generators

4.1 CPU clock

Table 4-1

CPU clock frequency

4.2 Peripheral clock

Table 4-2

Peripheral clock frequency

4.3 Oscillator characteristics

4.3.1

Main oscillator

A ceramic or crystal resonator can be connected to the main clock input pins

as shown in figure 4-1 “Recommended Main Oscillator Circuit”

Figure 4-1

Recommended Main Oscillator Circuit

Caution

Values of C1, C2 and Rd and the best setting for MOSCC.AMPSEL[1:0]

specified in cooperation with ceramic or crystal resonator manufacturer.

Parameter

Symbol

Condition

Ratings

Unit

Min

Typ

Max

CPU clock frequency

fCPU

PLL based

MHz

SSCG based

88.32

MHz

Parameter

Symbol

Condition

Ratings

Unit

Min

Typ

Max

Peripheral clock

frequency

fPERI

48a

Some peripherals can be operated at 80MHz. Refer to the chapter ‘Clock Selection’ in the UM for

details.

MHz

internal

external

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