Four-MOSFET Floating-Gate UV-Programmable Elements for Multifunction Binary Logic
نویسندگان
چکیده
This article presents two new, reconfigurable multi-input floating-gate circuits able to produce either the INVERTED SUM / INVERTED CARRY functions for a FULL-ADDER, XNOR / NAND, or XOR / NOR. The circuits contain four MOSFETs and fourteen or nine capacitors, respectively. SPICE simulations are shown, demonstrating the principal operation, together with preliminary measurements indicating that the circuits might operate in subthreshold, with supply voltages down to a few hundred mV. Measurements demonstrate the inverter function for Vdd from 93 mV up to 800 mV. Keywords—FGUVMOS, universal element, XNOR, NAND, XOR, NOR, full-adder.
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