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R8C/35M Group
5. Electrical Characteristics
R01DS0021EJ0100 Rev.1.00
Jun 20, 2011
Notes:
1.
VCC = 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.
VCC = 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 VCC = 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
VCC = 1.8 V to 5.5 V
20°C ≤ Topr ≤ 85°C
39.4
40
40.6
MHz
VCC = 1.8 V to 5.5 V
40°C ≤ Topr ≤ 85°C
39.4
40
40.6
MHz
VCC = 1.8 V to 5.5 V
Topr = 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 ≤ Topr ≤ 85°C
36.311
36.864
37.417
MHz
VCC = 1.8 V to 5.5 V
40°C ≤ Topr ≤ 85°C
36.311
36.864
37.417
MHz
VCC = 1.8 V to 5.5 V
Topr = 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
VCC = 1.8 V to 5.5 V
20°C ≤ Topr ≤ 85°C
31.52
32
32.48
MHz
VCC = 1.8 V to 5.5 V
40°C ≤ Topr ≤ 85°C
31.52
32
32.48
MHz
VCC = 1.8 V to 5.5 V
Topr = 25
°C
31.68
32
32.32
MHz
Oscillation stability time
VCC = 5.0 V, Topr = 25
°C
100
450
s
Self power consumption at oscillation
VCC = 5.0 V, Topr = 25
°C
500
A
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
VCC = 5.0 V, Topr = 25
°C
30
100
s
Self power consumption at oscillation
VCC = 5.0 V, Topr = 25
°C
2
A
fOCO-WDT
Low-speed on-chip oscillator frequency for the
watchdog timer
60
125
250
kHz
Oscillation stability time
VCC = 5.0 V, Topr = 25
°C
30
100
s
Self power consumption at oscillation
VCC = 5.0 V, Topr = 25
°C
2
A
Table 5.15
Power Supply Circuit Timing Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
td(P-R)
Time for internal power supply stabilization during
2,000
s