R8C datasheet(148/199 Pages) RENESAS

148 / 199 page

R8C/10 Group

16. Electrical Characteristics

Rev.1.20 Jan 27, 2006

page 138 of 180

REJ09B0019-0120

Timing requirements (Unless otherwise noted: VCC = 3V, VSS = 0V at Topr = 25 °C) [VCC=3V]

Table 16.15 XIN input

________

Table 16.16 CNTR0 input, CNTR1 input, INT2 input

________

Table 16.17 TCIN input, INT3 input

Table 16.18 Serial Interface

________

Table 16.19 External interrupt INT0 input

Symbol

tC(XIN)

tWH(XIN)

tWL(XIN)

Parameter

XIN input cycle time

XIN input HIGH pulse width

XIN input LOW pulse width

Min.

100

Max.

–

Unit

Standard

Symbol

tC(CNTR0)

tWH(CNTR0)

tWL(CNTR0)

Parameter

CNTR0 input cycle time

CNTR0 input HIGH pulse width

CNTR0 input LOW pulse width

Min.

300

120

Max.

–

Unit

Standard

Symbol

tC(TCIN)

tWH(TCIN)

tWL(TCIN)

Parameter

TCIN input cycle time

TCIN input HIGH pulse width

TCIN input LOW pulse width

Min.

1200(1)

600(2)

Max.

–

Unit

Standard

NOTES:

1. When using the Timer C capture function, adjust the cycle time above ( 1/ Timer C count source

frequency x 3).

2. When using the Timer C capture function, adjust the pulse width above ( 1/ Timer C count source

frequency x 1.5).

NOTES:

________

1. When selecting the digital filter by the INT0 input filter select bit, use the INT0 input HIGH pulse width

to the greater value,either ( 1/ digital filter clock frequency x 3) or the minimum value of standard.

________

2. When selecting the digital filter by the INT0 input filter select bit, use the INT0 input LOW pusle width

to the greater value,either ( 1/ digital filter clock frequency x 3) or the minimum value of standard.

Symbol

tC(CK)

tW(CKH)

tW(CKL)

td(C-Q)

th(C-Q)

tsu(D-C)

th(C-D)

Parameter

CLKi input cycle time

CLKi input HIGH pulse width

CLKi input LOW pulse width

TxDi output delay time

TxDi hold time

RxDi input setup time

RxDi input hold time

Min.

300

150

–

Max.

–

Unit

Standard

160

Symbol

tW(INH)

tW(INL)

Parameter

________

INT0 input HIGH pulse width

________

INT0 input LOW pulse width

Min.

380(1)

380(2)

Max.

–

Unit

Standard

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