Data Sheet S16618EJ3V0DS

16

µPD720113

System Clock Ratings

Parameter

Symbol

Condition

MIN.

TYP.

MAX.

Unit

Clock frequency

fCLK

X’tal

−500

ppm

30

+500

ppm

MHz

Oscillator block

−500

ppm

30

+500

ppm

MHz

Clock Duty cycle

tDUTY

40

50

60

%

Remarks 1. Recommended accuracy of clock frequency is

± 100 ppm.

2. Required accuracy of X’tal or oscillator block is including initial frequency accuracy, the spread of

X’tal capacitor loading, supply voltage, temperature, and aging, etc.

AC Characteristics (VDD = 3.14 to 3.46 V, TA = 0 to

+70°C)

System Reset Timing

Parameter

Symbol

Conditions

MIN.

MAX.

Unit

Reset active time (Figure 2-6)

trst

5

µs

Figure 2-6. System Reset Timing

SYSRSTB

trst