HA16117F データシートの表示（PDF） - Renesas Electronics

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HA16117F

CMOS Watchdog Timer

Renesas Electronics 

HA16117F Series

Operating Characteristics and Test Circuits

5V

VTL

VCC

0V

5V

RES

0V

5V

P-RUN

0V

5V

RES

0V

tON

50 ms/div

time

Power-on reset time (tON)

SW,OFF

tOFF

50 ms/div

time

Reset-clock off time (tOFF)

5V

0V

0.01 µ

510 k

VCC

Tadj

P-RUN ACC

750 k

CF

CR

0.1 µ

GND

RES

Oscilloscope

Circuit for measuring tON

5V

0V

f = 500Hz

duty 50%

5V

VCC

Tadj

P-RUN ACC

50½

CF

GND

CR

RES

0.01 µ

0.1 µ

510 k

750 k

Oscilloscope

Circuit for measuring tOFF

tRH

5V

RES

CR

0V

tRL

5V

0.01 µ

510 k

VCC

Tadj

P-RUN ACC

750 k

CF

CR

0.1 µ

GND

RES

Oscilloscope

Oscilloscope

20 ms/div

time

RES and CR waveforms at detect abnormal conditions

Circuit for measuring RES and CR waveforms

Rev.3.00 Jun 15, 2005 page 18 of 30

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