R8CSLASH20 datasheet(430/501 Pages) RENESAS

430 / 501 page

R8C/20 Group, R8C/21 Group

20. Electrical Characteristics

Rev.2.00 Aug 27, 2008

Page 414 of 458

REJ09B0250-0200

NOTES:

VCC = 2.7 V to 5.5 V, Topr = -40

°C to 85°C (J version) / -40°C to 125°C (K version), unless otherwise specified.

The standard value shows when the reset is deasserted for the FRA1 register.

NOTE:

VCC = 2.7 V to 5.5 V, Topr = -40

°C to 85°C (J version) / -40°C to 125°C (K version), unless otherwise specified.

NOTES:

The measurement condition is VCC = 2.7 to 5.5 V and Topr = -40

°C to 85°C (J version) / -40°C to 125°C (K version), unless

otherwise specified.

Waiting time until the internal power supply generation circuit stabilizes during power-on.

Time until CPU clock supply starts since the interrupt is acknowledged to exit stop mode.

Table 20.9

High-Speed On-Chip Oscillator Circuit Electrical Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

fOCO40M

High-speed on-chip oscillator frequency temperature

• supply voltage dependence

VCC = 4.75 V to 5.25 V,

°C ≤ Topr ≤ 60°C(2)

39.2

40.8

MHz

VCC = 3.0 V to 5.25 V,

-20

°C ≤ Topr ≤ 85°C(2)

38.8

41.2

MHz

VCC = 3.0 V to 5.5 V,

-40

°C ≤ Topr ≤ 85°C(2)

38.4

41.6

MHz

VCC = 3.0 V to 5.5 V,

-40

°C ≤ Topr ≤ 125°C(2)

38.0

42.0

MHz

VCC = 2.7 V to 5.5 V,

-40

°C ≤ Topr ≤ 125°C(2)

37.6

42.4

MHz

−

The value of the FRA1 register when the reset is

deasserted

08h

F7h

−

High-speed on-chip oscillator adjustment range

Adjust the FRA1 register to

-1 bit (the value when the

reset is deasserted)

−

+ 0.3

−

MHz

−

Oscillation stability time

−

100

µs

−

Self power consumption when high-speed on-chip

oscillator oscillating

VCC = 5.0 V, Topr = 25

°C

−

600

−µA

Table 20.10

Low-Speed On-Chip Oscillator Circuit Electrical Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

fOCO-S

Low-speed on-chip oscillator frequency

125

250

kHz

−

Oscillation stability time

−

100

µs

−

Self power consumption when low-speed on-chip

oscillator oscillating

VCC = 5.0 V, Topr = 25

°C

−

−µA

Table 20.11

Power Supply Circuit Timing Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

td(P-R)

Time for internal power supply stabilization during

power-on(2)

−

2000

µs

td(R-S)

STOP exit time(3)

−−

150

µs

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