The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2025
Filed:
Mar. 25, 2024
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
A resistive random-access memory (RRAM) circuit includes a current source configured to output a first current, a first n-type transistor including a first drain terminal configured to receive the first current, an RRAM device, second and third n-type transistors including respective second and third drain terminals coupled to an output terminal of the RRAM device, an amplifier including a non-inverting input coupled to the first drain terminal, an inverting input configured to receive a first reference voltage level, and an output coupled to a gate of each of the first through third n-type transistors, a fourth n-type transistor coupled between the second n-type transistor and a power supply reference node, and a comparator including a non-inverting input configured to receive a second reference voltage level, an inverting input coupled to each of the second and third drain terminals, and an output coupled to a gate of the fourth n-type transistor.