Patent ID: 7825704

Claim:
A threshold personalization circuit comprising: a segmented resistor divider coupled between a source of power supply and ground; a plurality of trim fuses coupled to segments of the resistor divider; a plurality of passgates coupled to the segmented resistor divider, each passgate receiving a selection signal; and a comparator having a first input coupled to the plurality of passgates, a second input for receiving a reference voltage, and an output for providing a reset signal, wherein the selection signals are provided by a personalization fuse circuit comprising: a first multiplexer and fuse circuit for providing a first selection signal; a second multiplexer and fuse circuit for providing a second selection signal; a third multiplexer and fuse circuit for providing a third selection signal; and a fourth multiplexer and fuse circuit for providing a fourth selection signal, wherein the multiplexers are controlled by a test mode signal received at a test pad.