HA16117F Series
Ordering Information
The HA16117F Series includes three ICs with different low threshold levels (V
TL
).
Type No.
HA16117FPA/FPAJ
HA16117FPB/FPBJ
HA16117FPC/FPCJ
Low Threshold Voltage (V
TL
)
4.4 V Typ
4.2 V Typ
4.0 V Typ
Pin Arrangement
V
CC
P-RUN
C
F
C
R
1
2
3
4
8
7
6
5
Tadj
ACC
GND
RES
(Top view)
Pin Description
Pin No.
1
2
3
4
5
6
7
8
Symbol
V
CC
P-RUN
C
F
C
R
RES
GND
ACC
Tadj *
Function
Power supply voltage input
Watchdog timer (WDT) input
Connected capacitor C
F
determines WDT filter characteristic
(normal frequency range)
Connected capacitor C
R
determines t
ON
for power-on reset and t
OFF
, t
RH
,
and t
RL
for auto-reset
Reset signal output from WDT and voltage supervision circuits
Ground
WDT on/off control input (on when ACC is low)
For adjusting t
RH
and t
OFF
(divide V
CC
to get the adjustment voltage)
Note: The low-voltage threshold cannot be modified by changing the external resistors connected to the
Tadj pin.
2
HITACHI-METALS [ HITACHI METALS, LTD ]
