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R3134K (DFN(PLP)1212-6) is the discontinued product and R3134Q (SC-88A) is the limited product. As of March in 2015. R3134x SERIES LOW VOLTAGE DETECTOR WITH BUILT-IN DELAY CIRCUIT NO.EA-209-140530 OUTLINE R3134x Series are CMOS-based 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 thr... See More ⇒