R8C/20 Group, R8C/21 Group 5. Electrical Characteristics
Rev.2.00 Aug 27, 2008 Page 27 of 41
REJ03B0120-0200
NOTES:
1. V
CC = 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.
2. The standard value shows when the reset is deasserted for the FRA1 register.
NOTE:
1. V
CC = 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:
1. The measurement condition is V
CC = 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.
2. Waiting time until the internal power supply generation circuit stabilizes during power-on.
3. Time until CPU clock supply starts since the interrupt is acknowledged to exit stop mode.
Table 5.9 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
V
CC = 4.75 V to 5.25 V,
0°C ≤ Topr ≤ 60°C
(2)
39.2 40 40.8 MHz
V
CC = 3.0 V to 5.25 V,
-20°C ≤ Topr ≤ 85°C
(2)
38.8 40 41.2 MHz
V
CC = 3.0 V to 5.5 V,
-40°C ≤ Topr ≤ 85°C
(2)
38.4 40 41.6 MHz
V
CC = 3.0 V to 5.5 V,
-40°C ≤ Topr ≤ 125°C
(2)
38.0 40 42.0 MHz
V
CC = 2.7 V to 5.5 V,
-40°C ≤ Topr ≤ 125°C
(2)
37.6 40 42.4 MHz
− The value of the FRA1 register when the reset is
deasserted
08h 40 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 − 10 100 µs
− Self power consumption when high-speed on-chip
oscillator oscillating
V
CC = 5.0 V, Topr = 25°C − 600 −µA
Table 5.10 Low-Speed On-Chip Oscillator Circuit Electrical Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
fOCO-S Low-speed on-chip oscillator frequency 40 125 250 kHz
− Oscillation stability time − 10 100 µs
− Self power consumption when low-speed on-chip
oscillator oscillating
V
CC = 5.0 V, Topr = 25°C − 15 −µA
Table 5.11 Power Supply Circuit Timing Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
t
d(P-R) Time for internal power supply stabilization during
power-on
(2)
1 − 2000 µs
t
d(R-S)
STOP exit time
(3)
−−150 µs