R8C/3GD Group

5. Electrical Characteristics

REJ03B0289-0100 Rev.1.00

Feb 26, 2010

Page 28 of 41

Notes:

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:

Notes:

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

20 C

85 C

38.4

40

41.6

MHz

40 C

85 C

38.0

42.0

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)

20 C

85 C

35.389

36.864

38.338

MHz

40 C

85 C

35.020

36.864

38.707

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

20 C

85 C

30.72

32

33.28

MHz

40 C

85 C

30.40

32

33.60

MHz

Oscillation stability time

0.5

3

ms

Self power consumption at oscillation

400

A

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

30

100

s

Self power consumption at oscillation

2

A

Table 5.12

Power Supply Circuit Timing Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

Time for internal power supply stabilization during

power-on (2)

2000

s