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Non-linear polar material based low power multiplier with NOR and NAND gate based reset mechanism

專利號(hào)
US11888479B1
公開日期
2024-01-30
申請(qǐng)人
Kepler Computing Inc.(US CA San Francisco)
發(fā)明人
Amrita Mathuriya; Rafael Rios; Ikenna Odinaka; Rajeev Kumar Dokania; Sasikanth Manipatruni
IPC分類
H03K19/23; H03K19/0185; G06F7/487; H03K19/017; G06F7/501; H03K19/17736
技術(shù)領(lǐng)域
reset,gate,majority,pull,capacitors,adder,minority,multiplier,gates,node
地域: CA CA San Francisco

摘要

A multiplier cell is derived from a 1-bit full adder and an AND gate. The 1-bit full adder is derived from majority and/or minority gates. The majority and/or minority gates include non-linear polar material (e.g., ferroelectric or paraelectric material). A reset mechanism is provided to reset the nodes across the non-linear polar material. The multiplier cell is a hybrid of majority and/or minority gates and complementary metal oxide semiconductor (CMOS) based inverters and/or buffers. The adder uses a non-linear polar capacitor to retain charge with fewer transistors than traditional CMOS sequential circuits. The non-linear polar capacitor includes ferroelectric material, paraelectric material, or non-linear dielectric. Input signals are received by respective terminals of capacitors having non-linear polar material. The other terminals of these capacitors are coupled to a node where the majority function takes place for the inputs.

說明書

Example 11: The apparatus of example 10, comprises a buffer coupled to the third node, wherein the reset mechanism includes: a fourth transmission gate controllable by the third control and the fourth control, wherein the fourth transmission gate is coupled to an output of the buffer and a sum output; and a sixth pull-down device controllable by the third control, wherein the sixth pull-down device is coupled to the fourth transmission gate and sum output.

Example 12: The apparatus of example 4, wherein the reset nodes include a first node, wherein the AND gate is to receive a multiplier and a multiplicand, wherein the AND gate comprises: a first capacitor to receive the multiplier, the first capacitor coupled to the first node; a second capacitor to receive the multiplicand, the second capacitor coupled to the first node; a third capacitor coupled to a ground node, wherein the third capacitor is coupled to the first node, wherein the first capacitor, the second capacitor, and the third capacitor include non-linear polar material; and a driver circuitry having a capacitive input coupled to the first node, and an output which is to provide a majority logic function of the multiplier, the multiplicand, and a voltage on the ground node.

Example 13: The apparatus of example 1, comprising an AND gate coupled to the 1-bit full adder, wherein the AND gate includes a CMOS AND gate.

權(quán)利要求

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