RNA51957B Datasheet | Renesas

.. RNA51957A,B Voltage Detecting, System Resetting IC Series REJ03D0912-0100 Rev.1.00 Oct 10, 2008 Description RNA51957A,B are semiconductor integrated circuits for resetting of all types of logic circuits such as CPUs, and has the feature of setting the detection voltage by adding external resistance. They include a built-in delay circuit to provide the desired retardation time simply by adding an external capacitor. They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping circuit. Features - Few external parts - Large delay time with a capacitor of small capacitance (td ≈ 100 ms, at 0.33 µF) - Low threshold...