JPH02224364A - Integrated circuit - Google Patents

Abstract

PURPOSE:To reduce components in number and an assembly operation in man- hour and to improve an integrated circuit of this design in packaging density by a method wherein a filter circuit and a logic circuit are provided inside the same package. CONSTITUTION:A filter circuit 2 is built inside the same package P to prevent the effect of a logic circuit 1 and a logic signal on a power source voltage and connected between a power terminal Vcc and a ground terminal GND. That is, the logic circuit 1 and the filter circuit 2 are constituted as IC chips 1a and 2a, and these IC chips 1a and 2a are built in the same package P to complete the formation of an integrated circuit of this design. As mentioned above, the filter circuit 2 is provided inside the integrated circuit, whereby the effect of logic signals on a power source voltage can be prevented inside the integrated circuit. Moreover, an externally fitted component is not required to be additionally provided to prevent an external effect. By this setup, an integrated circuit of this design can be reduced in number of components and man-hour of an assembly operation and improved in packaging density.

Description

[Detailed description of the invention] [Industrial application field] TECHNICAL FIELD This invention relates to integrated circuits.

[Conventional technology]

Conventionally, when a logic circuit is constructed using this type of integrated circuit, the power supply voltage may be affected by the logic signal and may not operate correctly. To prevent this, when configuring a logic circuit using this type of integrated circuit, the logic circuit 1 is built into the package P as shown in Fig. 3, and the filter circuit 3 is connected externally to the power supply of the integrated circuit. I was adding it.

[Problem to be solved by the invention]

The above-mentioned conventional integrated circuit requires components for a filter circuit in addition to the integrated circuit, and therefore has the disadvantage of increasing the number of components, increasing the number of assembly steps, and increasing the mounting area.

An object of the present invention is to provide an integrated circuit that solves the above problems.

[Means to solve the problem]

In order to achieve the above object, an integrated circuit according to the present invention includes a logic circuit and a filter circuit for blocking the influence of a logic signal on a power supply voltage, etc., in the same package.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram showing an embodiment of the present invention, and FIG. 2 is an implementation diagram of the same.

In FIG. 1, the present invention incorporates a logic circuit 1 and a filter circuit 2 for blocking the influence of logic signals on the power supply voltage into the same package P, and connects the filter circuit 2 between the power supply terminal Vcc of the integrated circuit and the ground terminal GND. It is connected between

In the integrated circuit according to the present invention, as shown in FIG.
, 2a, and these.

It is completed by being incorporated into the same package P.

According to the present invention, by having the logic circuit 1 and the filter circuit W12 in one package P, that is, by having the filter circuit 2 in the integrated circuit, the influence of the logic signal is prevented in the integrated circuit. Furthermore, there is no need to add external parts to deal with external influences.

〔Effect of the invention〕

As explained above, the present invention has the advantage of being able to reduce the number of parts, reduce assembly man-hours, and further improve packaging density by including a filter circuit and a logic circuit in one package. has.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a mounting diagram of the same, and FIG. 3 is a block diagram showing a conventional integrated circuit. 1...Logic circuit P...Package 2...Filter circuit

Claims (1)

[Claims] (1) An integrated circuit characterized by having a logic circuit and a filter circuit for blocking the influence of logic signals on power supply voltage, etc. in the same package.