32186 datasheet(959/1032 Pages) RENESAS

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ELECTRICAL CHARACTERISTICS

23-43

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

23.10 A.C. Characteristics (when VCCE = 3.3 V)

Figure 23.10.2 Input/Output Transition Time

Input pin

(Relative to VCC-BUS)

[115] tr(INPUT)

[116] tf(INPUT)

0.43VCC-BUS

0.16VCC-BUS

0.43VCC-BUS

0.16VCC-BUS

Input pin

(Relative to VCCE)

[115] tr(INPUT)

[116] tf(INPUT)

0.8VCCE

0.2VCCE

0.8VCCE

0.2VCCE

Figure 23.10.3 Clock and Reset Timing

XIN (Input)

(When using

oscillation circuit)

0.5VCC-BUS

RESET# (Input)

0.2VCCE

[119] tc(XIN)

[124] tw(RESET)

XIN (Input)

(When using external

clock input except for

oscillation circuit)

(Note 1)

0.8VCC-BUS

[120] tw(XINH) [121] tw(XINL)

0.8VCC-BUS

0.2VCC-BUS

[122] tr(XINH)

[123] tr(XINL)

0.5VCC-BUS

0.2VCC-BUS

Note 1: Make XOUT pin open and set parasitic capacity as 10pF or less.

The XDRV bit of clock control register (CLKCR) should be choosen B'11 (maximum).

(3) Clock and Reset Timing

Symbol

Parameter

Rated Value

Unit

See Fig

MIN

MAX

23.10.3

tc(XIN)

Clock Input Cycle Time

100

133.3

[119]

tw(XINH)

External Clock Input "H" Pulse Width

[120]

tw(XINL)

External Clock Input "L" Pulse Width

[121]

tr(XINH)

External Clock Input Hign-going Time

[122]

tr(XINL)

External Clock Input Low-going Time

[123]

tw(RESET)

Reset Input "L" Pulse Width

300

[124]

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