MM1075

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...