JPH01189572A - 半導体集積回路用試験回路 - Google Patents

半導体集積回路用試験回路

Info

Publication number
JPH01189572A
JPH01189572A JP63014172A JP1417288A JPH01189572A JP H01189572 A JPH01189572 A JP H01189572A JP 63014172 A JP63014172 A JP 63014172A JP 1417288 A JP1417288 A JP 1417288A JP H01189572 A JPH01189572 A JP H01189572A
Authority
JP
Japan
Prior art keywords
circuit
test
power source
power supply
power
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
JP63014172A
Other languages
English (en)
Inventor
Takehiro Hokimoto
武宏 保木本
Shigeaki Nagakubo
長久保　重明
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 Corp
NEC Engineering Ltd
Original Assignee
NEC Corp
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 Corp, NEC Engineering Ltd filed Critical NEC Corp
Priority to JP63014172A priority Critical patent/JPH01189572A/ja
Publication of JPH01189572A publication Critical patent/JPH01189572A/ja
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
    • C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Medicinal Chemistry (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Zoology (AREA)
  • Toxicology (AREA)
  • Immunology (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は半導体集積回路に関し、特に半導体集積回路を
試験する試験回路に関する。
〔従来の技術〕
従来、この種の半導体集積回路用試験回路は第２図に示
すように、第１の電源１と第２の電源２を被試験回路３
と試験回路５とに共用しており、外部試験端子を削減す
るため、被試験回路３の外部信号端子６を試験時には試
験用端子として使用していた。７は試験線である。
〔発明が解決しようとする課題〕
上述した従来の半導体集積回路用試験回路は、被試験回
路と試験回路の各電源及び外部試験端子が共有化してい
るため、集積回路の試験を行っていない通常の動作時に
おいても試験回路が動作し電力を消費するため、回路全
体の消費電力が増大するという欠点がある。
本発明の目的は前記課題を解消した半導体集積回路用試
験回路を提供することにある６〔課題を解決するための
手段〕 上記目的を達成するため、本発明の半導体集積回路用試
験回路においては、被試験回路用電源とは独立に試験時
のみ使用する試験用電源を有するものである。
〔実施例〕
次に、本発明について図面を参照し説明する６第１図は
本発明の一実施例を示す回路図である。
被試験回路３の電源は第１の電源１及び第２の電源２よ
り供給され、試験回路５の電源は第３の電ｇ４及び前記
試験回路の第２の電源２より供給される。さらに被試験
回路３の外部信号端子６は試験回路５の試験線７に接続
される。
実施例において、被試験回路３の試験を行っていない通
常動作時には、試験回路５の第３の電源４の電位は第２
の電源２と同電位とすることにより、試験回路５は動作
せず、消費電力は被試験回路３のみとなる。
また、被試験回路３の試験時には第３の電源４を第１の
電源１と同電位とすることにより、試験回路５が働き、
被試験回路３の試験を効率良く行える。
〔発明の効果〕
以上説明したように本発明は試験回路の電源を被試験回
路の電源と別にすることにより、試験用外部端子を増加
させることなく、試験時以外の消費電力を削減でき、特
に多入出力の外部端子を持ち消費電力の大きい半導体集
積回路において顕著な効果を有するものである。
【図面の簡単な説明】
第１図は本発明の一実施例を示す回路図、第２図は従来
の回路構成を示す回路図である。 １・・・第１の電源　　　　　２・・・第２の電源３・
・・被試験回路　　　　４・・・第３の電源５・・・試
験回路　　　　　６・・・外部信号端子７・・・試験線

Claims (1)

    【特許請求の範囲】
  1. １、被試験回路用電源とは独立に試験時のみ使用する試
    験用電源を有することを特徴とする半導体集積回路用試
    験回路。
JP63014172A 1988-01-25 1988-01-25 半導体集積回路用試験回路 Pending JPH01189572A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63014172A JPH01189572A (ja) 1988-01-25 1988-01-25 半導体集積回路用試験回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63014172A JPH01189572A (ja) 1988-01-25 1988-01-25 半導体集積回路用試験回路

Publications (1)

Publication Number Publication Date
JPH01189572A true JPH01189572A (ja) 1989-07-28

Family

ID=11853723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63014172A Pending JPH01189572A (ja) 1988-01-25 1988-01-25 半導体集積回路用試験回路

Country Status (1)

Country Link
JP (1) JPH01189572A (ja)

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