Patent ID: 6420925
Filing Date: 2002-07-16
Classification: G11C,H03K

Abstract:
A programmable latch device, the programmable latch device comprising:a) a latch, the latch including a voltage source input and an output; and b) a programmable element integrated into the latch such that when the programmable element is unprogrammed, and the latch is powered up through the voltage source input, the latch output goes to a first state, and when the programmable element is programmed, and the latch is powered up through the voltage source input, the latch output goes to a second state, wherein the latch additionally comprises: i) a programming transistor having a source, a drain and a gate, the programming transistor drain coupled to the programmable element such that it can drain current from the voltage source input through the programmable element; and ii) a setting transistor having a source, a drain and a gate, the setting transistor gate receiving a set input and selectively passing the voltage source to the programming transistor gate.