TECHNICAL DATA
IN1705
Micro Monitor Supply Control
The IN1705 is designed to control power supply and to start mi-
crocontroller and microprocessor systems. It is used for securing sta-
ble functioning of the system when starting and halting the device as
well as in the case of the supply voltage drops.
Manufactured in 8-pin SOIC/DIP package MS-012AA.
LSI features:
• rated supply voltage 5.0 V;
• generation of reset signal when power supply is on for
ORDERING INFORMATION
IL1705N Plastic
correct start of microprocessor;
IL1705D
SOIC
• generation of reset signal when power supply drops below
the operating one to avoid incorrect functioning of
microprocessor;
TA = -40° to 85° C for all packages.
• generation of reset signal when pushing reset button;
• possibility to program threashold voltage
at which reset signal is generated.
The IN1705 contains a source of reference voltage,
two analog comparators, watchdog timer, digital sampler,
digital delay.
Functions:
• generation of reset signal per fixed level of supply
PBRST 1
8
7
WDS
RST
voltage;
Vcc
2
• generation of reset signal from external “Reset” button;
• generation of signal of watchdog timer status;
• emergency interruption of primary power source.
GND
3
6
5
ST
NMI
IN
4
Fig. 2 – Pin assignment
2011, February, Rev. 01
IKSEMICON [ IK SEMICON CO., LTD ]
