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PDF HA16113FPJ Data sheet ( Hoja de datos )
| Número de pieza | HA16113FPJ | |
| Descripción | Dual Watchdog Timers | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HA16113FPJ
Dual Watchdog Timers
The HA16113FPJ is a multifunction device that provides microprocessor systems with the necessary
regulated power supply, monitors the supply voltage, and generates power-on reset and watchdog reset
signals. It is ideally suited for battery-operated systems such as instrumentation systems.
Functions
• Regulated power supply
• Power-on reset
• Two built-in auto-reset circuits
• Two built-in watchdog timer circuits (WDT)
• Output voltage monitoring (LVI)
Features
• Simultaneous or independent control of auto-reset outputs.
• Precisely regulated output voltage and accurate NMI trigger voltage (both ±2%).
• Low-voltage control with NMI, simultaneous RES1 and RES2, andSTBY outputs.
• Independently selectable durations for power-on reset and auto-reset: power-on duration is common to
both reset outputs; auto-reset durations can be selected independently.
• Reset command input pin (CONT) for second reset output (RES2).
• WDT filter function detects minimum pulse width and maximum period of P-RUN input pulses.
1 page  
Timing Waveforms
VBATT
Vout
4.7 V
4.5 V
4.6 V
4.7 V
NMI
STBY
P-RUN1
Crash
P-RUN2
Crash
RES1
ton
tOFF1
tRES
tr
CONT
RES2
ton
tRL1
tRH1
tOFF1
tRES
tr
tOFF2
Note: SW pin is connected to ground.
HA16113FPJ
4.6 V (VNMI)
3.0 V (VSTBY)
5
5 Page 
Operating Interconnections (example)
HA16113FPJ
RES
STBY
NMI
PORT
VCC
MAIN
CPU
PORT
GND Re2 Re1 NMI NMI RES1 STBY STBY CR1 Rf
adj adj
HA16113
Cf1 P-RUN1
VCC CS VC Vout CRES RES2 CONT SW CR2 RR Cf2 P-RUN2
Batt.
SYSTEM
VCC
PORT VCC
NMI
STBY
SUB
CPU
RES
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet HA16113FPJ.PDF ] | |
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