公开(公告)号：US20210366554A1

公开(公告)日：2021-11-25

申请号：US17306266

申请日：2021-05-03

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics International N.V.

Inventor： Fabio Enrico Carlo Disegni ,  Laura Capecchi ,  Marcella Carissimi ,  Vikas Rana ,  Cesare Torti

IPC: G11C16/10 ,  G11C16/28 ,  G11C16/08 ,  G11C16/24 ,  G11C16/30 ,  G11C16/32 ,  G11C7/06

Abstract: An embodiment non-volatile memory device includes an array of memory cells in rows and columns; a plurality of local bitlines, the memory cells of each column being coupled to a corresponding local bitline; a plurality of main bitlines, each main bitline being coupleable to a corresponding subset of local bitlines; a plurality of program driver circuits, each having a corresponding output node and injecting a programming current in the corresponding output node, each output node coupleable to a corresponding subset of main bitlines. Each program driver circuit further includes a corresponding limiter circuit that is electrically coupled, for each main bitline of the corresponding subset, to a corresponding sense node whose voltage depends, during writing, on the voltage on the corresponding main bitline. Each limiter circuit turns off the corresponding programming current, in case the voltage on any of the corresponding sense nodes overcomes a reference voltage.

公开(公告)号：US20210343334A1

公开(公告)日：2021-11-04

申请号：US17375945

申请日：2021-07-14

Applicant: STMICROELECTRONICS INTERNATIONAL N.V.

Inventor： Anuj GROVER ,  Tanmoy ROY ,  Nitin CHAWLA

IPC: G11C11/419 ,  H01L27/11

Abstract: An in-memory compute (IMC) device includes a compute array having a first plurality of cells. The compute array is arranged as a plurality of rows of cells intersecting a plurality of columns of cells. Each cell of the first plurality of cells is identifiable by its corresponding row and column. The IMC device also includes a plurality of computation engines and a plurality of bias engines. Each computation engine is respectively formed in a different one of a second plurality of cells, wherein the second plurality of cells is formed from cells of the first plurality. Each computation engine is formed at a respective row and column intersection. Each bias engine of the plurality of bias engines is arranged to computationally combine an output from at least one of the plurality of computation engines with a respective bias value.

公开(公告)号：US20210343319A1

公开(公告)日：2021-11-04

申请号：US17374304

申请日：2021-07-13

Applicant: STMicroelectronics International N.V.

Inventor： Ankur BAL ,  Rupesh SINGH ,  Vivek TRIPATHI

IPC: G11C7/10 ,  H03L7/107 ,  G11C7/22 ,  H03M1/00 ,  G11C7/04

Abstract: A quantizer generates a thermometer coded signal from an analog voltage signal. Data weighted averaging (DWA) of the thermometer coded signal is accomplished by controlling the operation of a crossbar switch controlled by a switch control signal to generate an output DWA signal. The output DWA signal is latched to generate a latched output DWA signal which is processed along with bits of the thermometer coded input signal in feedback loop to generate the switch control signal. The latching of the output DWA signal is performed in an input register of a digital-to-analog converter which operates to convert the latched output DWA signal to a feedback analog voltage from which the analog voltage signal is generated. The switch control signal specifies a bit location for a beginning logic transition of the output DWA signal cycle based on detection of an ending logic transition of the latched DWA signal.

公开(公告)号：US20210336606A1

公开(公告)日：2021-10-28

申请号：US17223963

申请日：2021-04-06

Applicant: STMicroelectronics International N.V.

Inventor： Manoj Kumar TIWARI ,  Saiyid Mohammad Irshad RIZVI

IPC: H03H11/04 ,  G06F1/10

Abstract: A glitch filter is provided. The glitch filter receives an input signal and sets a voltage level of an intermediary input node in accordance with a state of the input signal. The glitch filter charges or discharges a switched capacitance based on the voltage level of the intermediary input node and charges or discharges a filter capacitance based on a charge of the switched capacitance. The glitch filter sets a state of an output signal based on the charge of the filter capacitance. The glitch filter includes a reset stage that at least partially filters a burst of glitches in the input signal from the output signal by controlling the charge of the switched capacitance based on the state of the input signal and the state of the output signal.

公开(公告)号：US20210313941A1

公开(公告)日：2021-10-07

申请号：US16838315

申请日：2020-04-02

Applicant: STMicroelectronics International N.V.

Inventor： Riju Biswas

IPC: H03F3/45 ,  H03M1/12

Abstract: An apparatus includes a load pair including a first transistor and a second transistor, a common mode feedback circuit comprising a first common mode feedback transistor and a second common mode feedback transistor, wherein a drain of the first common mode feedback transistor is coupled to a source of the first transistor, and a gate of the first common mode feedback transistor is coupled to a drain of the first transistor, and a drain of the second common mode feedback transistor is coupled to a source of the second transistor, and a gate of the second common mode feedback transistor is coupled to a drain of the second transistor, and an offset cancellation stage coupled to outputs of the load pair.

公开(公告)号：US11121687B1

公开(公告)日：2021-09-14

申请号：US16861602

申请日：2020-04-29

Applicant: STMicroelectronics International N.V.

Inventor： Riju Biswas ,  Ratul Mitra

IPC: H03F3/45

Abstract: Disclosed herein is a circuit including a differential amplifier having a pair of input transistors coupled in a differential arrangement between adjustable current sources and receiving input differential signals from a pair of input voltage regulators. The adjustable current sources are configured to source more current to the pair of input transistors than current that is sunk from the pair of input transistors. A first amplifier has inputs coupled to receive differential output voltages from the differential amplifier. A second amplifier has inputs coupled to receive amplified differential output voltages from the first amplifier. A low pass filter has inputs coupled to receive further amplified differential output voltages from the second amplifier and produce final differential output voltages.

公开(公告)号：US20210281254A1

公开(公告)日：2021-09-09

申请号：US17193532

申请日：2021-03-05

Applicant: STMicroelectronics International N.V.

Inventor： Jeet Narayan TIWARI ,  Anand KUMAR ,  Prashutosh GUPTA

IPC: H03K5/00 ,  H03K19/20

Abstract: A divider circuit includes a subtract-by-two circuit receiving MSBs of an input and producing a subtracted-by-two output, a subtract-by-one circuit receiving the MSBs and producing a subtracted-by-one output, a first multiplexer passing the subtracted-by-two or the subtracted-by-one output based on a first control signal, a second multiplexer passing output of the first multiplexer or the MSBs based on a second control signal to produce an asynchronous divisor. An asynchronous one-shot N+2 divider divides an input clock by the asynchronous divisor to produce a first divided signal. An output flip-flop receives the first divided signal and is clocked by an inverse of the input clock to produce a second divided signal. A third multiplexer passes the first divided signal or the second divided signal in response to a select load signal to produce a multiplexer output. A divider divides the multiplexer output by a set divisor to produce an output clock.

公开(公告)号：US20210264250A1

公开(公告)日：2021-08-26

申请号：US16799671

申请日：2020-02-24

Applicant: STMICROELECTRONICS INTERNATIONAL N.V. ,  STMICROELECTRONICS S.R.L.

Inventor： Surinder Pal SINGH ,  Thomas BOESCH ,  Giuseppe DESOLI

IPC: G06N3/08 ,  G06N3/04 ,  G06F17/18 ,  G06K9/62

Abstract: A convolutional neural network includes a pooling unit. The pooling unit performs pooling operations between convolution layers of the convolutional neural network. The pooling unit includes hardware blocks that promote computational and area efficiency in the convolutional neural network.

公开(公告)号：US11092993B2

公开(公告)日：2021-08-17

申请号：US16437705

申请日：2019-06-11

Applicant: STMicroelectronics International N.V.

Inventor： Ankur Bal ,  Rupesh Singh

IPC: G06F1/02 ,  H03K4/02 ,  H03K3/80

Abstract: A recursive digital sinusoid generator generates recursive values used in the production of a digital sinusoid output. The recursive values are generated at a first frequency. A sinusoid value generator generates replacement values at a second frequency, wherein the second frequency is less than the first frequency. The generated recursive values are periodically replaced with the generated replacement values without interrupting production of the digital sinusoid output at the first frequency. This periodic replacement effectively corrects for a finite precision error which accumulates in the recursive values over time.

公开(公告)号：US20210226445A1

公开(公告)日：2021-07-22

申请号：US17222352

申请日：2021-04-05

Applicant: STMicroelectronics International N.V.

Inventor： Radhakrishnan SITHANANDAM

IPC: H02H9/04 ,  H01L23/528 ,  H01L27/02 ,  H01L29/08 ,  H01L27/12 ,  H01L29/78 ,  H01L27/06 ,  H01L29/06 ,  H01L29/739 ,  H01L29/87

Abstract: Electrostatic discharge (ESD) protection is provided in circuits which use of a tunneling field effect transistor (TFET) or an impact ionization MOSFET (IMOS). These circuits are supported in silicon on insulator (SOI) and bulk substrate configurations to function as protection diodes, supply clamps, failsafe circuits and cutter cells. Implementations with parasitic bipolar devices provide additional parallel discharge paths.