R5F5671CDDFB datasheet(95/179 Pages) RENESAS

95 / 179 page

R01DS0373EJ0120 Rev.1.20

Page 95 of 179

Sep 30, 2024

RX671 Group

2. Electrical Characteristics

Figure 2.8

HOCO Clock Oscillation Start Timing (Oscillation is Started by Setting the

HOCOCR.HCSTP Bit)

Figure 2.9

High-Speed On-Chip Oscillator Power Supply Control Timing

Table 2.19

HOCO Clock Timing

Conditions: VCC = AVCC0 = AVCC1 = VCC_USB = VBATT = 2.7 to 3.6 V, 2.7 V ≤ VREFH0 ≤ AVCC0,

VSS = AVSS0 = AVSS1 = VREFL0 = VSS_USB = 0 V,

Ta = Topr

Item

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

HOCO clock oscillation frequency FLL not in use

fHOCO

15.616

(–2.40%)

16.384

(+2.40%)

MHz

–20°C ≤ Ta

17.568

(–2.40%)

18.432

(+2.40%)

19.520

(–2.40%)

20.480

(+2.40%)

15.520

(–3.00%)

16.480

(+3.00%)

Ta < –20°C

17.460

(–3.00%)

18.540

(+3.00%)

19.400

(–3.00%)

20.600

(+3.00%)

FLL in use

fHOCO

15.960

(–0.25%)

16.040

(+0.25%)

MHz

Sub-clock frequency

precision: ±50 ppm

17.955

(–0.25%)

18.045

(+0.25%)

19.950

(–0.25%)

20.050

(+0.25%)

HOCO clock oscillation stabilization waiting time

tHOCOWT

—

105

149

µs

Figure 2.8

HOCO clock power supply stabilization time

tHOCOP

—

150

µs

Figure 2.9

FLL stabilization waiting time

tFLLWT

——

1.8

HOCO clock

HOCOCR.HCSTP

OSCOVFSR.HCOVF

tHOCOWT

High-speed on-chip

oscillator output

Internal power supply for

high-speed on-chip oscillator

HOCOPCR.HOCOPCNT

tHOCOP

HOCOCR.HCSTP

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