Power-On Reset Circuit in 180-nm CMOS With Brownout Detection, Stable Switching Points, Long Reset Pulse Duration, and Resilience to Switching Noise

Based on a review of presented power-on reset (POR) integrated circuit (IC) module designs for different environments and aims, an example of high-speed POR module with the supply voltage brownout detection and resilience to glitch supply noise (GSN) has been designed in a 0.18-μ mCMOS technology. The module has dimensions of176 ~μ mper102 ~μ mand the static current consumption of14 ~μ A. The basic features are stable detection thresholds of 1.52 and 1.42 V, the reset time pulse duration of more than 0.3 ms, independence from temperature, technological process, and the supply voltage value and slew rate. The unique feature is resilience to the supply voltage glitches down to 70% of the rated voltage, which is sometimes below any thresholds, with a duration of fewer than10 ~μ s.