公开(公告)号：US10424361B2

公开(公告)日：2019-09-24

申请号：US15967511

申请日：2018-04-30

Applicant: Texas Instruments Incorporated

Inventor： John Anthony Rodriguez ,  Richard Allen Bailey

IPC: G11C11/22 ,  H04L9/32

Abstract: A method of generating a random number from an electronic circuit memory and/or a system with the electronic circuit memory. The memory comprises a block of ferroelectric two transistor, two capacitor (2T-2C), memory cells. The method comprises: (i) first, writing a predetermined programming pattern to the block cells in a one transistor, one-capacitor (1T-1C) mode, thusly writing, per cell, a same data state to both a first and second sub-cell of the cell; (ii) second, reading the cells in a 2T-2C mode to generate a random number comprising a random bit from each of the cells; (iii) third, restoring the random number into the cells in a 2T-2C mode, thusly writing, per cell, a complementary data state to both a first and second sub-cell of the cell, responsive to a respective random number bit; and fourth, imprinting the random number in each cell in the block.

公开(公告)号：US09824769B2

公开(公告)日：2017-11-21

申请号：US15146049

申请日：2016-05-04

Applicant: Texas Instruments Incorporated

Inventor： Sunil Kumar Dusa ,  Richard Allen Bailey ,  Archana Venugopal ,  John Anthony Rodriguez ,  Michael Allen Ball

IPC: G11C17/18 ,  G11C17/16

CPC classification number: G11C17/18 ,  G11C17/165

Abstract: A fuse-programmable register or memory location having a plurality of fusible links of differing electrical characteristics in parallel. In one embodiment, three fusible links with different resistances are provided, such that application of a programming voltage non-uniformly distributes the current among the links, allowing varying voltages to selectively blow one or more of the links. Sensing of the programmed state is performed by applying a voltage across the parallel links and measuring the current in comparison with a plurality of reference currents. Reduction in the overhead chip area per bit and in the serial data communication latency are obtained.