JPH0311657A - Rom-mounted microcomputer - Google Patents

Rom-mounted microcomputer

Info

Publication number
JPH0311657A
JPH0311657A JP1146421A JP14642189A JPH0311657A JP H0311657 A JPH0311657 A JP H0311657A JP 1146421 A JP1146421 A JP 1146421A JP 14642189 A JP14642189 A JP 14642189A JP H0311657 A JPH0311657 A JP H0311657A
Authority
JP
Japan
Prior art keywords
rom
microcomputer
connection terminal
chip
connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1146421A
Other languages
Japanese (ja)
Inventor
Kazuo Ugawa
鵜川　一雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Engineering Ltd
Original Assignee
NEC Engineering Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Engineering Ltd filed Critical NEC Engineering Ltd
Priority to JP1146421A priority Critical patent/JPH0311657A/en
Publication of JPH0311657A publication Critical patent/JPH0311657A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/71—Means for bonding not being attached to, or not being formed on, the surface to be connected
    • H01L24/72—Detachable connecting means consisting of mechanical auxiliary parts connecting the device, e.g. pressure contacts using springs or clips

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Microcomputers (AREA)

Abstract

PURPOSE:To lower a height of a chip by providing a connection terminal of a connection part which is connected to a connection terminal of a leadless chip-carrier ROM. CONSTITUTION:A connection terminal 3 of a connection part which is connected to a connection terminal 3a of a leadless chip-carrier ROM 4 is provided. That is to say, the ROM 4 is mounted on a ROM connection part 2 of a microcomputer 1; the connection terminal 3a of the ROM 4 is connected to the connection terminal 3 of the microcomputer 1; as a result, the microcomputer 1 can read out a content of a memory of the ROM 4 from the connection terminal 3. Thereby, it is possible to lower a height of a chip of the microcomputer.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、外部ＲＯＭを必要とするマイクロコンピュー
タに関し、特に外部ＲＯＭをチップ上へ実装できるマイ
クロコンピュータに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a microcomputer that requires an external ROM, and more particularly to a microcomputer that can mount an external ROM on a chip.

〔従来の技術〕[Conventional technology]

従来、この種のマイクロコンピュータの外部ＲＯＭは、
ＤＩＰタイプのみ実装可能な構造となっていた。Conventionally, the external ROM of this type of microcomputer is
The structure was such that only the DIP type could be implemented.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来のＲＯＭ実装型マイクロコンピュータに実
装するＲＯＭは、ＤＩＰタイプしか実装することが出来
ない精造となっているので、マイクロコンピュータのチ
ップの高さが、他のＩＣの２倍となるという欠点があっ
た。The ROM mounted in the conventional ROM-mounted microcomputer mentioned above is a sophisticated one that can only be mounted in the DIP type, so the height of the microcomputer chip is twice that of other ICs. There were drawbacks.

本発明の目的は、このような欠点を除き、チップの高さ
を低くしたマイクロコンピュータを提供することにある
。An object of the present invention is to eliminate such drawbacks and provide a microcomputer with a reduced chip height.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のＲＯＭ実装のマイクロコンピュータの構成は、
リードレスチップキャリアＲＯＭを実装すると共に、こ
のＲＯＭの接続端子と接続される接続部の接続端子を備
えたことを特徴とする。The configuration of the ROM-mounted microcomputer of the present invention is as follows:
The present invention is characterized in that it mounts a leadless chip carrier ROM and includes a connection terminal of a connection portion that is connected to a connection terminal of this ROM.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の一実施例の斜視図である。本実施例に
おいてＲＯＭ４は、マイクロコンピュータ１のＲＯＭ接
続部２へ実装され、ＲＯＭ４の接続端子３ａがマイクロ
コンピュータ１の接続端子３と接続されるので、マイク
ロコンピュータ１はこの接続端子３からＲＯＭ４のメモ
リの内容を読み出ずことができる。FIG. 1 is a perspective view of an embodiment of the present invention. In this embodiment, the ROM 4 is mounted on the ROM connection section 2 of the microcomputer 1, and the connection terminal 3a of the ROM 4 is connected to the connection terminal 3 of the microcomputer 1. You can read the contents of the file without reading it.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、リードレスチップキャリ
アＲＯＭをマイクロコンピュータに実装可能とすること
により、マイクロコンピュータのチップの高さを、従来
のこの種のＲＯＭ実装形マイクロコンピュータの半分に
出来る効果がある。As explained above, the present invention has the advantage that by making it possible to mount a leadless chip carrier ROM in a microcomputer, the height of a microcomputer chip can be halved compared to a conventional ROM-mounted microcomputer of this type. be.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例を示す斜視図である。 １・・・マイクロコンピュータ、２・・・接続部、３３
ａ・・・接続端子、４・・・ＲＯＭ。FIG. 1 is a perspective view showing an embodiment of the present invention. 1...Microcomputer, 2...Connection part, 33
a... Connection terminal, 4... ROM.

Claims (1)

【特許請求の範囲】[Claims] リードレスチップキャリアＲＯＭを実装すると共に、こ
のＲＯＭの接続端子と接続される接続部の接続端子を備
えたことを特徴とするＲＯＭ実装のマイクロコンピュー
タ。A ROM-mounted microcomputer characterized by mounting a leadless chip carrier ROM and having a connection terminal of a connection part connected to a connection terminal of the ROM.
JP1146421A 1989-06-07 1989-06-07 Rom-mounted microcomputer Pending JPH0311657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1146421A JPH0311657A (en) 1989-06-07 1989-06-07 Rom-mounted microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1146421A JPH0311657A (en) 1989-06-07 1989-06-07 Rom-mounted microcomputer

Publications (1)

Publication Number Publication Date
JPH0311657A true JPH0311657A (en) 1991-01-18

Family

ID=15407308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1146421A Pending JPH0311657A (en) 1989-06-07 1989-06-07 Rom-mounted microcomputer

Country Status (1)

Country Link
JP (1) JPH0311657A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6525932B1 (en) 1999-08-18 2003-02-25 Fujitsu Limited Expansion unit and electronic apparatus
US6873356B1 (en) 1999-08-31 2005-03-29 Fujitsu Limited Expansion unit, portable data processing apparatus and imaging device
US7626630B2 (en) 1999-12-24 2009-12-01 Crescent Moon, Llc Portable information terminal equipped with camera

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6525932B1 (en) 1999-08-18 2003-02-25 Fujitsu Limited Expansion unit and electronic apparatus
US6873356B1 (en) 1999-08-31 2005-03-29 Fujitsu Limited Expansion unit, portable data processing apparatus and imaging device
US7626630B2 (en) 1999-12-24 2009-12-01 Crescent Moon, Llc Portable information terminal equipped with camera

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