151 datasheet(89/121 Pages) RENESAS

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REJ03B0230-0110

Rev.1.10

Page 89 of 116

Sep 06, 2010

R32C/151 Group

5. Electrical Characteristics

Note:

This recovery time does not include the period until the main clock oscillator is stabilized. The CPU

starts operating before the oscillator is stabilized.

Figure 5.4

Clock Circuit Timing

Table 5.14

Electrical Characteristics of Clock Circuitry

(VCC = 3.0 to 5.5 V, VSS = 0 V, and Ta =Topr, unless otherwise noted)

Symbol

Characteristics

Measurement

condition

Value

Unit

Min.

Typ. Max.

trec(WAIT) Recovery time from wait mode to low power mode

225

µs

trec(STOP) Recovery time from stop mode (1)

225

µs

t rec(STOP)

Interrupt for exiting

stop mode

CPU clock

Main clock oscillator

output

On-chip oscillator

output

Sub clock oscillator

output

On-chip oscillator

output

t rec(WAIT)

Interrupt for exiting

wait mode

CPU clock

Recovery time from stop mode

t rec(STOP)

Recovery time from wait mode

to low power mode

t rec(WAIT)

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