System Reset
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MITSUMI
System Reset (with built-in watchdog timer) MM1035
System Reset (with built-in watchdog t...
Description
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MITSUMI
System Reset (with built-in watchdog timer) MM1035
System Reset (with built-in watchdog timer)
Monolithic IC MM1035
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. 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
Package
DIP-8A (MM1035XD) SOP-8A (MM1035XF)
Applications
Microcomputers
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) MM1035
Electrical Characteristics 1 (DC)
Item Consumption current Detection voltage Detection voltage temperature coefficient Hysteresis voltage CK input threshold CK input current Symbol ICC VSL VSH VS/ T VHYS VTH IIH IIL VOH1 VOH2 VOL1 Output voltage (Low) ...
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