Part # MAX6467-MAX6468 datasheet

Part Manufacturer: Maxim

Maxim

Part Description: MAX6467 68 DS


Part Details:

19-2523; Rev 1; 11/05 Microprocessor Supervisory Reset Circuits with Edge-Triggered, One-Shot Manual Reset MAX6467/MAX6468 General Description Features The MAX6467/MAX6468 microprocessor (µP) supervi- Precision Factory-Set Reset Threshold Voltages sory circuits monitor single power-supply voltages from for +5.0V, +3.3V, +3.0V, +2.5V, and +1.8V Supplies +1.8V to +5.0V and assert a reset if the supply voltagedrops below its preset threshold. An edge-triggered, Edge-Triggered Manual Reset Input with One- one-shot manual reset function ensures that the µP Shot Pulsed Reset Output enters the reset mode for a fixed timeout period only, Two Reset Timeout Period Options (150ms or even in the event of a continuously asserted manual 1200ms min) reset. The MAX6467/MAX6468 significantly improvesystem reliability compared to traditional manual reset Immune to Short Voltage Transients supervisory circuits. Low Supply Current (3µA at VCC = +1.8V) A variety of factory-trimmed threshold options accommo-date different supply voltages and tolerances, eliminating RESET Valid to VCC = +1V external components. The factory-set thresholds range Active-Low Open-Drain and Push-Pull RESET from +1.575V to +4.625V to monitor +5.0V, +3.3V, +3.0V, Output Options +2.5V, and +1.8V supplies with various tolerances. Resettimeout periods of 150ms (min) and 1200ms (min) are -40°C to +125°C Operating Temperature Range available to accommodate different µP platforms. Small 4-Pin SC70 and SOT143 Packages A single, active-low RESET output asserts when VCC drops below its threshold or if the edge-triggered MR No External Components Required asserts low. RESET remains low for the reset timeout Pin Compatible with MAX811, MAX6315, period after VCC rises above its threshold and for a fixed, MAX6384, and MAX6386 one-shot timeout period after a manual reset input fallingedge. RESET remains valid as long as VCC remains Ordering Information above +1V. Open-drain (MAX6467) and push-pull(MAX6468) output options provide additional flexibility in PART TEMP RANGE PIN-PACKAGE the system design. MAX6467XS_ _D_-T -40°C to +125°C 4 SC70-4 The MAX6467/MAX6468 are offered in the space-saving MAX6467US_ _D_-T -40°C to +125°C 4 SOT143-4 4-pin SOT143 package and the ultra-small 4-pin SC70


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MAX6467-MAX6468.pdf Datasheet