Abstract: A circuit is provided that reduces the electromagnetic emissions from an integrated circuit. The circuit includes the resistive portion of an intrinsic low pass filter network and a means for modulating the resistance in response to switching of the integrated circuit nucleus logic elements. The resistance is increased before the nucleus logic elements switch and is gradually decreased upon completion of all switching of the nucleus logic elements. A portion of the transient switching pulse waveform, normally provided by the external power supply, is instead provided by the intrinsic nucleus capacitance associated with the nucleus logic. In particular the high frequency components are sourced by the intrinsic nucleus capacitance. The amplitude and the rise time of the transient switching pulse is thereby reduced.

Abstract: An electrostatic discharge protection circuit having a non-lightly doped drain MOS device for protecting other lightly doped drain devices on an integrated circuit, and a method of concurrently fabricating both the non lightly doped and lightly doped devices on the substrate of the integrated circuit using substantially the same set of processing steps.

Abstract: An electrostatic discharge protection circuit having a non-lightly doped drain MOS device for protecting other lightly doped drain devices on an integrated circuit, and a method of concurrently fabricating both the non lightly doped and lightly doped devices on the substrate of the integrated circuit using substantially the same set of processing steps.

Abstract: A brownout reset generator includes a presettable counter and a reset controller consisting of a plurality of logic gates coupled to receive a brownout signal representing a power brownout condition or power assertion (i.e. power-up) and a clock signal, and to generate a brownout reset in response to and of selectively longer duration than the brownout signal. Following the leading edge of the brownout signal (i.e. initiation of the brownout condition), the counter is preset to a selected value and remains preset for the duration of the brownout signal. Following the trailing edge of the brownout signal (i.e. termination of the brownout condition), the counter begins counting clock pulses. The counter outputs a timing pulse after a selected number of clock pulses representing a predetermined time interval have been counted.