HA16103 Datasheet, PDF (14/21 Pages) Hitachi Semiconductor – Watchdog Timer

HA16103 FPJ/FPK
Sample Connection Circuit between HA16103 and H8/532 (2)
S1
IGN. SW
Q1
V _Z1
C1
100 µ
R1
R2
V_CC
V_CONT V_OUT Voadj
VNMIadj
R3
NMI
R5
HA16103
STBY
C2
V _Z2
GND
RES
V _STBYadj
CLK ^{Rf Cf R}R ^CR ^CRES
R4
V_BATT
1000 p
180 k ^{0.01 µ 180 k 0.1 µ}
2200 p
Q2
Q3
NMI V_CC
STBY
H8/532
RES
PORT _GND
V_OUT
GND
CLK ^Rf
NMI
HA16103
Cf R_R
STBY
RES
V _STBYadj
C_R C_RES
1000 p
180 k ^{0.01 µ 180 k 0.1 µ}
2200 p
NMI V_CC
STBY
H8/532
RES
PORT _GND
Unit R: Ω
C: F
14