Patent ID: 7268589
Filing Date: 2007-09-11
Classification: G11C,H03K

Abstract:
1. An address transition detector circuit including: an input node; an output node; a stable voltage supply node; a Pbias node having a first voltage derived from a voltage at the bandgap reference node; an Nbias node having a second voltage derived from a voltage at the bandgap reference node, the second voltage being lower than the first voltage; first through fifth cascaded inverters, the first cascaded inverter coupled to the input node, each cascaded inverter powered by a p-channel MOS bias transistor and an n-channel MOS bias transistor, the gates of each p-channel MOS bias transistor coupled to the Pbias node, the gates of each n-channel MOS bias transistor coupled to the Nbias node, the sources of each p-channel MOS bias transistor coupled to the bandgap reference node, the sources of each n-channel MOS bias transistor coupled to ground; a first capacitor coupled between the output of the first cascaded inverter and ground; a second capacitor coupled between the output of the fourth cascaded inverter and ground; a NAND gate having a first input coupled to the input node, a second input coupled the output of the fifth cascaded inverter, and an output coupled to the output node.