TSPC trigger with data keeping feedback circuit

Abstract

The invention relates to the field of integrated circuits, and provides a technical scheme of a TSPC trigger, so that a new TSPC circuit has data keeping ability, and the circuit structure runs in a high speed circuit to keep the integrity of the data. The technical scheme adopted in the invention is as follows: the TSPC trigger with a data keeping feedback circuit is composed of 8 PMOS tubes, which are respectively P1, P2, P3, P4, P5, P6, P7, P8; 7 NMOS 7 tubes, which are respectively N1, N2, N3, N4, N5, N6, N7 and 3 inverters INV1, INV2, INV3. The TSPC trigger is mainly applied to the design and manufacture of integrated circuits.

Description

technical field [0001] The invention relates to the field of integrated circuits, in particular to high-speed digital circuit design. Specifically, it relates to a TSPC flip-flop with a data-hold feedback loop. Background technique [0002] In digital circuits, the D flip-flop is a very important circuit structure, which is often used in circuit structures such as frequency dividers and data recovery. The general TSPC circuit structure consists of nine transistors, and is often used in high-speed circuit structures. Now due to the reduction of process size, the speed of digital circuit operation has increased a lot. If the traditional TSPC circuit structure is used, data loss will occur at low level, which will greatly affect the function of the circuit. On the basis of the traditional nine-tube circuit structure, the present invention adds a data holding feedback loop to the output, so that there is a data holding loop when the level is low, ensuring the integrity of the...

AI Technical Summary

Problems solved by technology

If the traditional TSPC circuit structure is used, data loss will occur at low level, which will greatly affect the function of the circuit

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