Datasheet

R8C/33T Group 5. Electrical Characteristics
R01DS0046EJ0110 Rev.1.10 Page 34 of 47
Apr 26, 2011
Notes:
1. Vcc = 1.8 V to 5.5 V, Topr =
−20°C to 85°C (N 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 V to 5.5 V, Topr =
−20°C to 85°C (N version), unless otherwise specified.
Notes:
1. The measurement condition is Vcc = 1.8 V to 5.5 V and Topr = 25
°C.
2. Waiting time until the internal power supply generation circuit stabilizes during power-on.
Table 5.10 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
38.4 40 41.6 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
35.389 36.864 38.338 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
30.72 32 33.28 MHz
— Oscillation stability time Vcc = 5.0 V, Topr = 25
°C—0.53ms
— Self power consumption at oscillation Vcc = 5.0 V, Topr = 25
°C — 400 — µA
Table 5.11 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 µs
— Self power consumption at oscillation Vcc = 5.0 V, Topr = 25
°C—2—µA
Table 5.12 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)
— — 2000 µs