R8C34C Datasheet, PDF (36/57 Pages) Renesas Technology Corp – RENESAS MCU

R8C/34C Group
5. Electrical Characteristics
Table 5.12 High-speed On-Chip Oscillator Circuit Electrical Characteristics
Symbol
−
−
−
Parameter
Condition
High-speed on-chip oscillator frequency after
reset
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⁾
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
Oscillation stability time
Self power consumption at oscillation
VCC = 1.8V to 5.5 V
–20°C ≤Topr ≤ 85°C
VCC = 1.8V to 5.5 V
–40°C ≤ Topr ≤ 85°C
VCC = 1.8V to 5.5 V
–20°C ≤ Topr ≤ 85°C
VCC = 1.8V to 5.5 V
–40°C ≤ Topr ≤ 85°C
VCC = 1.8V to 5.5 V
–20°C ≤ Topr ≤ 85°C
VCC = 1.8V to 5.5 V
–40°C ≤ Topr ≤ 85°C
VCC = 5.0 V, Topr = 25°C
VCC = 5.0 V, Topr = 25°C
Standard
Min.
Typ.
38.4
40
Max.
41.6
Unit
MHz
38.0
40
42.0 MHz
35.389 36.864 38.338 MHz
35.020 36.864 38.707 MHz
30.72
32 33.28 MHz
30.40
32 33.60 MHz
−
0.5
3
ms
−
400
−
µA
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.
Table 5.13 Low-speed On-Chip Oscillator Circuit Electrical Characteristics
Symbol
fOCO-S
−
−
Parameter
Low-speed on-chip oscillator frequency
Oscillation stability time
Self power consumption at oscillation
Condition
VCC = 5.0 V, Topr = 25°C
VCC = 5.0 V, Topr = 25°C
Standard
Unit
Min. Typ. Max.
60
125 250 kHz
−
30
100 µs
−
2
−
µA
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.
Table 5.14 Power Supply Circuit Timing Characteristics
Symbol
Parameter
Condition
td(P-R)
Time for internal power supply stabilization during
power-on ⁽²⁾
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.
Standard
Unit
Min. Typ. Max.
−
− 2,000 µs
R01DS0007EJ0100 Rev 1.00
Aug. 24, 2010
Page 36 of 54