HA16117FPB HITACHI-METALS [Hitachi Metals, Ltd], HA16117FPB Datasheet - Page 14

• Manufacturer Part Number: HA16117FPB
• Description: CMOS Watchdog Timer
• Manufacturer: HITACHI-METALS [Hitachi Metals, Ltd]

HA16117F Series
7. When P-RUN frequency fluctuates (2)
14
P-RUN
RES
WD
C
C
Q
Q
C
A
B
R
F
3.6 V
0.9 V
3.2 V
1.6 V
5 V
0 V
5 V
0 V
If there is a double-pulse in P-RUN, RES will not be output as long as the ratio of P-RUN
pulse interval minimum value to maximum value is 3 or less. The timing chart for a P-RUN
minimum interval of 8 ms and maximum interval of 22 ms is shown below.
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
8 ms
22 ms