32C datasheet(46/55 Pages) RENESAS

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R8C/32C Group

5. Electrical Characteristics

R01DS0009EJ0100 Rev 1.00

Page 46 of 52

Aug. 24, 2010

Timing requirements

(Unless Otherwise Specified: VCC = 3 V, VSS = 0 V at Topr = 25

°C)

Figure 5.12

External Clock Input Timing Diagram when VCC = 3 V

Figure 5.13

TRAIO Input Timing Diagram when VCC = 3 V

Table 5.24

External Clock Input (XOUT, XCIN)

Symbol

Parameter

Standard

Unit

Min.

Max.

tc(XOUT)

XOUT input cycle time

−

tWH(XOUT)

XOUT input “H” width

−

tWL(XOUT)

XOUT input “L” width

−

tc(XCIN)

XCIN input cycle time

−µs

tWH(XCIN)

XCIN input “H” width

−µs

tWL(XCIN)

XCIN input “L” width

−µs

Table 5.25

TRAIO Input

Symbol

Parameter

Standard

Unit

Min.

Max.

tc(TRAIO)

TRAIO input cycle time

300

−

tWH(TRAIO)

TRAIO input “H” width

120

−

tWL(TRAIO)

TRAIO input “L” width

120

−

External Clock

input

tWH(XOUT),

tWH(XCIN)

tC(XOUT), tC(XCIN)

tWL(XOUT), tWL(XCIN)

VCC = 3 V

TRAIO input

VCC = 3 V

tC(TRAIO)

tWL(TRAIO)

tWH(TRAIO)

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