
5. Electrical Characteristics
REJ03B0243-0030 Rev.0.30
Jan 21, 2009
R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,
R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group
Under development Preliminary specification
Specifications in this manual are tentative and subject to change.
Notes:
1.
This indicates the precision error for the oscillation frequency of the high-speed on-chip oscillator.
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.
Waiting time until the internal power supply generation circuit stabilizes during power-on.
Table 5.13
High-speed On-Chip Oscillator Circuit Characteristics
(VCC = 1.8 to 5.5 V and Topr =
20 to 85°C (N version) / 40 to 85°C (D version), unless
otherwise specified.)
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
High-speed on-chip oscillator frequency after
reset
VCC = 5.0 V, Topr = 25
°CTBD
40
TBD
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)TBD
36.864
TBD
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
TBD
32
TBD
MHz
High-speed on-chip oscillator frequency
temperature supply voltage dependence
(1)VCC = 2.7 V to 5.5 V
20°C ≤ Topr ≤ 85°C
TBD
TBD
%
VCC = 2.7 V to 5.5 V
40°C ≤ Topr ≤ 85°C
TBD
TBD
%
VCC = 2.2 V to 5.5 V
20°C ≤ Topr ≤ 85°C
TBD
TBD
%
VCC = 2.2 V to 5.5 V
40°C ≤ Topr ≤ 85°C
TBD
TBD
%
VCC = 1.8 V to 5.5 V
20°C ≤ Topr ≤ 85°C
TBD
TBD
%
VCC = 1.8 V to 5.5 V
40°C ≤ Topr ≤ 85°C
TBD
TBD
%
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
400
A
Table 5.14
Low-speed On-Chip Oscillator Circuit Characteristics
(VCC = 1.8 to 5.5 V and Topr =
20 to 85°C (N version) / 40 to 85°C (D version), unless
otherwise specified.)
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
fOCO-S
Low-speed on-chip oscillator frequency
112.5
125
137.5
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
3
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 Characteristics
(VCC = 1.8 to 5.5 V, VSS = 0 V, and Topr = 25
°C, unless otherwise specified.)
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
td(P-R)
Time for internal power supply stabilization during
2000
s