Datasheet

R8C/35M Group 5. Electrical Characteristics
R01DS0021EJ0100 Rev.1.00 Page 36 of 54
Jun 20, 2011
Notes:
1. V
CC = 1.8 to 5.5 V, Topr = −20 to 85°C (N version) / −40 to 85°C (D version), unless otherwise specified.
2. This enables the setting errors of bit rates such as 9600 bps and 38400 bps to be 0% when the serial interface is used in
UART mode.
Note:
1. V
CC = 1.8 to 5.5 V, Topr = −20 to 85°C (N version) / −40 to 85°C (D version), unless otherwise specified.
Notes:
1. The measurement condition is V
CC = 1.8 to 5.5 V and Topr = 25°C.
2. Waiting time until the internal power supply generation circuit stabilizes during power-on.
Table 5.13 High-speed On-Chip Oscillator Circuit Electrical Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
− High-speed on-chip oscillator frequency after
reset
V
CC = 1.8 V to 5.5 V
−20°C ≤ T
opr ≤ 85°C
39.4 40 40.6 MHz
V
CC = 1.8 V to 5.5 V
−40°C ≤ T
opr ≤ 85°C
39.4 40 40.6 MHz
V
CC = 1.8 V to 5.5 V
T
opr = 25°C
39.6 40 40.4 MHz
High-speed on-chip oscillator frequency when
the FRA4 register correction value is written into
the FRA1 register and the FRA5 register
correction value into the FRA3 register
(2)
VCC = 1.8 V to 5.5 V
−20°C ≤ T
opr ≤ 85°C
36.311 36.864 37.417 MHz
V
CC = 1.8 V to 5.5 V
−40°C ≤ T
opr ≤ 85°C
36.311 36.864 37.417 MHz
V
CC = 1.8 V to 5.5 V
T
opr = 25°C
36.495 36.864 37.233 MHz
High-speed on-chip oscillator frequency when
the FRA6 register correction value is written into
the FRA1 register and the FRA7 register
correction value into the FRA3 register
V
CC = 1.8 V to 5.5 V
−20°C ≤ T
opr ≤ 85°C
31.52 32 32.48 MHz
V
CC = 1.8 V to 5.5 V
−40°C ≤ T
opr ≤ 85°C
31.52 32 32.48 MHz
V
CC = 1.8 V to 5.5 V
T
opr = 25°C
31.68 32 32.32 MHz
− Oscillation stability time V
CC = 5.0 V, Topr = 25°C − 100 450 µs
− Self power consumption at oscillation V
CC = 5.0 V, Topr = 25°C − 500 −µA
Table 5.14 Low-speed On-Chip Oscillator Circuit Electrical Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
fOCO-S Low-speed on-chip oscillator frequency 60 125 250 kHz
− Oscillation stability time V
CC = 5.0 V, Topr = 25°C − 30 100 µs
− Self power consumption at oscillation V
CC = 5.0 V, Topr = 25°C − 2 −µA
fOCO-WDT Low-speed on-chip oscillator frequency for the
watchdog timer
60 125 250 kHz
− Oscillation stability time V
CC = 5.0 V, Topr = 25°C − 30 100 µs
− Self power consumption at oscillation V
CC = 5.0 V, Topr = 25°C − 2 −µA
Table 5.15 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)
−−2,000 µs