R5F10366ASP datasheet(64/114 Pages) RENESAS

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RL78/G12

3. ELECTRICAL SPECIFICATIONS (G: INDUSTRIAL APPLICATIONS TA = –40 to +105°C)

R01DS0193EJ0250 Rev.2.50

Jan 17, 2025

Page 64 of 109

3.2 Oscillator Characteristics

3.2.1 X1 oscillator characteristics

(TA = –40 to +105°C, 2.4 V ≤ VDD ≤ VDD ≤ 5.5 V, VSS = 0 V)

Parameter

Resonator

Conditions

MIN.

TYP.

MAX.

Unit

X1 clock oscillation

frequency (fX)Note

Ceramic resonator /

crystal oscillator

2.7 V

≤ VDD ≤ 5.5 V

1.0

20.0

MHz

2.4 V

≤ VDD < 2.7 V

1.0

8.0

Note Indicates only permissible oscillator frequency ranges. Refer to AC Characteristics for instruction execution time.

Request evaluation by the manufacturer of the oscillator circuit mounted on a board to check the oscillator

characteristics.

Caution Since the CPU is started by the high-speed on-chip oscillator clock after a reset release, check the X1

clock oscillation stabilization time using the oscillation stabilization time counter status register (OSTC)

by the user. Determine the oscillation stabilization time of the OSTC register and the oscillation

stabilization time select register (OSTS) after sufficiently evaluating the oscillation stabilization time

with the resonator to be used.

Remark When using the X1 oscillator, refer to 5.4 System Clock Oscillator in the RL78/G12 User’s Manual.

3.2.2 On-chip oscillator characteristics

(TA = –40 to +105°C, 2.4 V ≤ VDD ≤ 5.5 V, VSS = 0 V)

Oscillators

Parameters

Conditions

MIN.

TYP.

MAX.

Unit

High-speed on-chip oscillator

clock frequency Notes 1, 2

fIH

MHz

High-speed on-chip oscillator

clock frequency accuracy

R5F102 products

TA = –20 to +85°C

-1.0

+1.0

TA = –40 to –20°C

-1.5

+1.5

TA = +85 to +105°C

-2.0

+2.0

Low-speed on-chip oscillator

clock frequency

fIL

kHz

Low-speed on-chip oscillator

clock frequency accuracy

-15

+15

Notes 1.

High-speed on-chip oscillator frequency is selected by bits 0 to 3 of option byte (000C2H) and bits 0 to 2 of

HOCODIV register.

This only indicates the oscillator characteristics. Refer to AC Characteristics for instruction execution time.

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