R8C/1A Group, R8C/1B Group

5. Electrical Characteristics

Rev.1.40

Dec 08, 2006

Page 39 of 45

REJ03B0144-0140

i = 0 or 1

Figure 5.11

NOTES:

1.

When selecting the digital filter by the INT0 input filter select bit, use an INT0 input HIGH width of either (1/digital filter clock

frequency x 3) or the minimum value of standard, whichever is greater.

2.

When selecting the digital filter by the INT0 input filter select bit, use an INT0 input LOW width of either (1/digital filter clock

frequency x 3) or the minimum value of standard, whichever is greater.

Figure 5.12

Table 5.19

Serial Interface

Symbol

Parameter

Standard

Unit

Min.

Max.

CLKi input cycle time

200

−

ns

CLKi input “H” width

100

−

ns

CLKi input “L” width

100

−

ns

TXDi output delay time

−

50

ns

TXDi hold time

0

−

ns

RXDi input setup time

50

−

ns

RXDi input hold time

90

−

ns

Table 5.20

External Interrupt INT0 Input

Symbol

Parameter

Standard

Unit

Min.

Max.

INT0 input “H” width

250(1)

−

ns

INT0 input “L” width

250(2)

−

ns

CLKi

TXDi

RXDi

i = 0 or 1

INT0 input