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Non-volatile d flip-flop circuit based on phase-change memory unit and its realization method

A phase-change storage and non-volatile technology, applied in the field of integrated circuits, can solve problems such as D flip-flops not being able to maintain state, D flip-flops losing signals, etc.

Inactive Publication Date: 2016-04-13
SHANGHAI XINCHU INTEGRATED CIRCUIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the usual D flip-flops cannot maintain their state in the state of power-off
[0003] The invention overcomes the defect that the D flip-flop in the prior art will lose signal in the power-off state, and proposes a non-volatile D flip-flop circuit based on a phase-change memory unit and its implementation method

Method used

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  • Non-volatile d flip-flop circuit based on phase-change memory unit and its realization method
  • Non-volatile d flip-flop circuit based on phase-change memory unit and its realization method
  • Non-volatile d flip-flop circuit based on phase-change memory unit and its realization method

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Embodiment Construction

[0029] The present invention will be described in further detail in conjunction with the following specific examples and accompanying drawings, and the protection content of the present invention is not limited to the following examples. Without departing from the spirit and scope of the inventive concept, changes and advantages conceivable by those skilled in the art are all included in the present invention, and the appended claims are the protection scope.

[0030] Such as Figure 1-4 As shown, 1-D flip-flop unit, 2-phase change memory unit, 3-the output terminal of NAND gate 12, 4-the output terminal of NAND gate 13, the output terminal of 5-D flip-flop, 6-D trigger The inverting output terminal of the device, 7-phase change resistance, 8-phase change resistance, 9-control transistor, 10-control transistor, 11-inverter, 12-NAND gate, 13-NAND gate, 14-AND NOT gate, 15-NAND gate, 16-PMOS transistor, 17-PMOS transistor, 18-PMOS transistor, 19-PMOS transistor, 20-NMOS transis...

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Abstract

The invention discloses a nonvolatile D flip-flop circuit based on a phase change storage unit and an implementation method for the nonvolatile D flip-flop circuit. The nonvolatile D flip-flop circuit comprises a D flip-flop unit and the phase change storage unit, wherein the D flip-flop unit is connected in series with the phase change storage unit. The nonvolatile D flip-flop circuit based on the phase change storage unit has bit-level storage and recovery capacity; and the functions of the conventional D flip-flop circuit can be realized, simultaneously the current state of the D flip-flop unit can be kept during power failure, and the state before power failure can be recovered after power recovery.

Description

technical field [0001] The invention relates to an integrated circuit, in particular to a nonvolatile D flip-flop circuit based on a phase-change memory unit and a realization method. Background technique [0002] D flip-flop is a basic circuit that can store a binary number. It can maintain two stable states of "1" or "0" by itself, also known as a bistable circuit. Under the action of different input signals, its output can be set to 1 state or 0 state, and when the input signal disappears, the new state obtained by the flip-flop can be maintained. The flip-flop is one of the widely used devices in digital circuits, and it can be seen in counters, answering machines, computers, digital cameras, and digital tape recorders. And in large-scale integrated circuit design, D flip-flop is one of the essential basic components. But the usual D flip-flops cannot maintain their state in a power-down state. [0003] The invention overcomes the defect in the prior art that the D fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C14/00
Inventor 亢勇陈邦明
Owner SHANGHAI XINCHU INTEGRATED CIRCUIT