JPS6077100U - read-only memory - Google Patents

read-only memory

Info

Publication number
JPS6077100U
JPS6077100U JP16871383U JP16871383U JPS6077100U JP S6077100 U JPS6077100 U JP S6077100U JP 16871383 U JP16871383 U JP 16871383U JP 16871383 U JP16871383 U JP 16871383U JP S6077100 U JPS6077100 U JP S6077100U
Authority
JP
Japan
Prior art keywords
read
memory
error correction
data
mode
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
JP16871383U
Other languages
Japanese (ja)
Inventor
三渕　誠
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP16871383U priority Critical patent/JPS6077100U/en
Publication of JPS6077100U publication Critical patent/JPS6077100U/en
Pending legal-status Critical Current

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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。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は誤り修正回路を内蔵する読み出し専用メモリの
例を示す図、第２図は、本考案の実施例を示す図である
。１０〜６０は第１図と同一で、７０は出力選択回路、
８０はテスト入力端子であ、る。FIG. 1 is a diagram showing an example of a read-only memory incorporating an error correction circuit, and FIG. 2 is a diagram showing an embodiment of the present invention. 10 to 60 are the same as in FIG. 1, 70 is an output selection circuit,
80 is a test input terminal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 記憶しているデニタの一部を冗長として使用して、出力
データの一部に誤りを生じても修正が可能な誤り修正回
路を内蔵している読み出し専用メモリにおいて、テスト
端子を用いて誤り修正回路を使用しないでデータをその
まま出力させるモードと、誤り修正回路を使用するモー
ドとを選択可能としたことを特徴とする読み出し専用メ
モリ。Error correction is possible using a test terminal in a read-only memory that has a built-in error correction circuit that uses part of the stored data as redundancy to correct any errors that occur in part of the output data. A read-only memory characterized in that it is possible to select between a mode in which data is output as is without using a circuit, and a mode in which an error correction circuit is used.
JP16871383U 1983-10-31 1983-10-31 read-only memory Pending JPS6077100U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16871383U JPS6077100U (en) 1983-10-31 1983-10-31 read-only memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16871383U JPS6077100U (en) 1983-10-31 1983-10-31 read-only memory

Publications (1)

Publication Number Publication Date
JPS6077100U true JPS6077100U (en) 1985-05-29

Family

ID=30368771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16871383U Pending JPS6077100U (en) 1983-10-31 1983-10-31 read-only memory

Country Status (1)

Country Link
JP (1) JPS6077100U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6379298A (en) * 1986-09-24 1988-04-09 Hitachi Vlsi Eng Corp Semiconductor storage device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6379298A (en) * 1986-09-24 1988-04-09 Hitachi Vlsi Eng Corp Semiconductor storage device

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