System Reset (with built-in watchdog timer) Monolithic IC
MITSUMI
System Reset (with built-in watchdog timer) MM1075
System Reset (with built-in watchdog timer)
Monolithic IC ...
Description
MITSUMI
System Reset (with built-in watchdog timer) MM1075
System Reset (with built-in watchdog timer)
Monolithic IC MM1075
Outline
This IC functions in a variety of CPU systems and other logic systems to generate a reset signal and reset the system accurately during momentary interruption or lowering of power supply voltage. It also has a built-in watchdog timer for operation diagnosis. This prevents the system from running wild by generating an intermittent reset pulse during system mis-operation.
Features
1. 2. 3. 4. 5. 6. 7. Built-in watchdog timer Low minimum operating voltage VCC=0.8V typ. Both positive and negative logic reset output can be extracted Accurate detection of drop in power supply voltage Detection voltage has hysteresis Few external parts 1 capacitor Timer monitoring time can be varied by using an external resistor
Package
DIP-8A (MM1075XD) SOP-8A (MM1075XF)
Applications
Microcomputer system monitoring, etc.
Absolute Maximum Ratings
Item Storage temperature Operating temperature Power supply voltage
(Ta=25°C) Symbol TSTG TOPR VCC max. VVS &VCK VOH Pd Rating -40~+125 -20~+70 -0.3~+10 -0.3~+10 -0.3~+10 400 Units
°C °C
V V V mW
Voltage applied to VS & CK pins Voltage applied to RESET, RESET pin Allowable loss
-
MITSUMI
System Reset (with built-in watchdog timer) MM1075
Electrical Characteristics (DC)
Item Consumption current Detection voltage Detection voltage temperature coefficient Hysteresis voltage CK input threshold CK input current Symbol I...
Similar Datasheet