R5F21386MNFP datasheet(49/58 Pages) RENESAS

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R8C/38M Group

5. Electrical Characteristics

Under development Preliminary document

Specifications in this document are tentative and subject to change.

R01DS0082EJ0110 Rev.0.10

Page 49 of 55

Mar 04, 2011

Timing requirements

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

°C)

Figure 5.13

External Clock Input Timing Diagram when VCC = 3 V

Figure 5.14

TRAIO Input Timing Diagram when VCC = 3 V

Notes:

1. When using timer RF input capture mode, adjust the cycle time to (1/timer RF count source frequency × 3) or above.

2. When using timer RF input capture mode, adjust the pulse width to (1/timer RF count source frequency × 1.5) or above.

Figure 5.15

TRFI Input Timing Diagram when VCC = 3 V

Table 5.27

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

TBD

µs

tWH(XCIN)

XCIN input “H” width

TBD

µs

tWL(XCIN)

XCIN input “L” width

7TBD

µs

Table 5.28

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

—

Table 5.29

TRFI Input

Symbol

Parameter

Standard

Unit

Min.

Max.

tc(TRFI)

TRFI input cycle time

1200 (1)

—ns

tWH(TRFI)

TRFI input “H” width

600 (2)

—ns

tWL(TRFI)

TRFI input “L” width

600 (2)

—ns

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)

tWH(TRFI)

tc(TRFI)

tWL(TRFI)

TRFI input

VCC = 3 V

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