COMPACT EEPROM MEMORY CELL
    173.
    发明申请

    公开(公告)号:US20190088665A1

    公开(公告)日:2019-03-21

    申请号:US16130593

    申请日:2018-09-13

    Abstract: An EEPROM memory integrated circuit includes memory cells arranged in a memory plane. Each memory cell includes an access transistor in series with a state transistor. Each access transistor is coupled, via its source region, to the corresponding source line and each state transistor is coupled, via its drain region, to the corresponding bit line. The floating gate of each state transistor rests on a dielectric layer having a first part with a first thickness, and a second part with a second thickness that is less than the first thickness. The second part is located on the source side of the state transistor.

    Ring oscillator operation management method and apparatus

    公开(公告)号:US10218336B2

    公开(公告)日:2019-02-26

    申请号:US15436817

    申请日:2017-02-19

    Abstract: A device and method can be used to manage the operation of a ring oscillator circuit. A master oscillator circuit generates a master supply voltage. The master supply voltage associated with a stable oscillation rate of the master oscillator circuit. The master oscillator circuit is supplied with current and is structurally identical to the ring oscillator circuit. A capacitive circuit is loaded with a load voltage originating from the master supply voltage. In response to a control signal, the ring oscillator circuit is supplied with a current controlled by a voltage delivered by the capacitive circuit, in such a way as to provide a stable oscillation rate for the ring oscillator circuit.

    Device for determining the movement of a rotary element, particularly for readings of water and/or gas meters

    公开(公告)号:US10215594B2

    公开(公告)日:2019-02-26

    申请号:US15379329

    申请日:2016-12-14

    Inventor: Vincent Onde

    Abstract: A rotary element is equipped with a pattern representing a reflected binary code on at least three bits. A detection circuit is configured to sense the pattern and deliver an incident signal encoded in reflected binary code on at least three bits. The incident signal is converted by a transcoding circuit into an intermediate signal encoded in reflected binary code on two bits. A decoding stage decodes the intermediate signal and outputs at least one clock signal representing the amount of rotation of the rotary element and a direction signal representing the direction of rotation. A processing circuit determines the movement of the rotary element, and has at least one general purpose timer designed to receive the at least one clock signal and direction signal.

    DPA protection of a rijndael algorithm

    公开(公告)号:US10210776B2

    公开(公告)日:2019-02-19

    申请号:US15046069

    申请日:2016-02-17

    Inventor: Nicolas Bruneau

    Abstract: A method of protecting a Rijndael-type algorithm executed by an electronic circuit against side channel attacks, wherein: each block of data to be encrypted or to be decrypted is masked with a first mask before a non-linear block substitution operation is applied based on a substitution box, and is then unmasked with a second mask after the substitution; and the substitution box is recalculated, block by block, before the non-linear operation is applied, the processing order of the blocks of the substitution box being submitted to a random permutation, commutative with the non-linear substitution operation.

    Stucture for protecting an integrated circuit against electrostatic discharges

    公开(公告)号:US10199368B2

    公开(公告)日:2019-02-05

    申请号:US15436819

    申请日:2017-02-19

    Abstract: An integrated circuit includes at least one input-output pad and a terminal intended to be connected to a source of a reference potential and further including a protection structure including a thyristor forward-connected between the pad and the terminal. The thyristor includes a first resistor between its cathode gate and the terminal. At least one Zener diode is disposed between the thyristor and the pad. The anode of the Zener diode is connected to the cathode gate of the thyristor and the cathode of the Zener diode is connected to the pad via at least one second resistor. The junction of the Zener diode is different from the junctions of the PNPN structure of the thyristor.

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