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R3133Q (SC-82AB) is the discontinued product. As of March in 2015. R3132x/R3133x SERIES LOW VOLTAGE DETECTOR WITH BUILT-IN DELAY CIRCUIT NO.EA-093-140530 OUTLINE R3132x/R3133x Series are CMOS-based low voltage detector ICs with built-in delay circuit, high detector threshold accuracy, and ultra low supply current, which can operate at low voltage. These ICs can be used as system reset generators, and each of these ICs consists of a voltage reference, a comparator, resistors for setting voltage detector threshold, an output driver transistor, manual reset circuit, and an output delay generator. Detector threshold is fixed internally with high accuracy and requires no adjustment. When a supply voltage crosses a setting detector threshold voltage from a high value t... See More ⇒