MAX6347

INTEGRATED CIRCUITS MAX6326/MAX6327/MAX6328/ MAX6346/MAX6347/MAX6348 3-pin ultra-low power SC70/SOT microprocessor reset circuit Product data Supersedes data of 2003 Apr 30 2003 Aug 05 Philips Semiconductors Philips Semiconductors Product data 3-pin ultra-low power SC70/SOT microprocessor reset circuit MAX632x/MAX634x DESCRIPTION The MAX6326/MAX6327//MAX6328/MAX6346/MAX6347/MAX6348 microprocessor (µP) reset circuits monitor power supplies in µP and digital systems. These devices eliminate external components and adjustments while providing excellent circuit reliability and low cost solution. They are used to monitor 2.5 V, 3 V, 3.3 V and 5 V power supplies. They assert a reset signal when the VDD supply voltage falls below a preset reset threshold voltage. The reset signal remains asserted for at least 100 ms after the VDD rises above the reset threshold. The reset threshold are factory trimmable from 2.2 V to 4.63 V in approximately 100 mV increments. All these parts are guaranteed to assert a reset for VDD down to 1 V. They have excellent immunity to fast transients on VDD. The devices vary in their output configuration. The MAX6326/MAX6346 have push-pull, active-LOW reset output; while the MAX6328/MAX6348 have open drain, active-LOW reset output. The MAX6327/MAX6347 have push-pull, active HIGH reset output. The lower threshold MAX6326/MAX6327/MAX6328 have ultra-low supply current of typically 0.5 µA making them ideal for battery powered applications. All six devices...