JPH0753199Y2 - 紫外線消去型ｐｒｏｍ - Google Patents

紫外線消去型ｐｒｏｍ

Info

Publication number
JPH0753199Y2
JPH0753199Y2 JP1988153712U JP15371288U JPH0753199Y2 JP H0753199 Y2 JPH0753199 Y2 JP H0753199Y2 JP 1988153712 U JP1988153712 U JP 1988153712U JP 15371288 U JP15371288 U JP 15371288U JP H0753199 Y2 JPH0753199 Y2 JP H0753199Y2
Authority
JP
Japan
Prior art keywords
erasable prom
memory cell
present
ultraviolet
erasing
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.)
Expired - Lifetime
Application number
JP1988153712U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0276396U (OSRAM
Inventor
梶野　　薫
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
Original Assignee
NEC Corp
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 filed Critical NEC Corp
Priority to JP1988153712U priority Critical patent/JPH0753199Y2/ja
Publication of JPH0276396U publication Critical patent/JPH0276396U/ja
Application granted granted Critical
Publication of JPH0753199Y2 publication Critical patent/JPH0753199Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

JP1988153712U 1988-11-25 1988-11-25 紫外線消去型ｐｒｏｍ Expired - Lifetime JPH0753199Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988153712U JPH0753199Y2 (ja) 1988-11-25 1988-11-25 紫外線消去型ｐｒｏｍ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988153712U JPH0753199Y2 (ja) 1988-11-25 1988-11-25 紫外線消去型ｐｒｏｍ

Publications (2)

Publication Number Publication Date
JPH0276396U JPH0276396U (OSRAM) 1990-06-12
JPH0753199Y2 true JPH0753199Y2 (ja) 1995-12-06

Family

ID=31429794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988153712U Expired - Lifetime JPH0753199Y2 (ja) 1988-11-25 1988-11-25 紫外線消去型ｐｒｏｍ

Country Status (1)

Country Link
JP (1) JPH0753199Y2 (OSRAM)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6083298A (ja) * 1983-10-13 1985-05-11 Fujitsu Ltd 消去可能読出し専用記憶素子
JPS61261900A (ja) * 1985-05-15 1986-11-19 Nippon Denso Co Ltd 半導体集積回路装置

Also Published As

Publication number Publication date
JPH0276396U (OSRAM) 1990-06-12

Similar Documents

Publication Publication Date Title
TW538413B (en) Semiconductor memory device
GB2351822A (en) Memory system
EP1316964A3 (en) Non-volatile semiconductor memory device and memory system using the same
ES2088386T3 (es) Sistema visualizador.
JPH0753199Y2 (ja) 紫外線消去型ｐｒｏｍ
JPS57111893A (en) Relieving system of defective memory
DE69321623D1 (de) Redundanzspeicherzellen mit Parallelprüffunktion enthaltendes Halbleiter-Speichergerät
KR910014813A (ko) 반도체메모리시스템
JP2865807B2 (ja) 半導体記憶システム
JPS62236055A (ja) Ｅｅｐｒｏｍ機密保持回路
JP2663651B2 (ja) 半導体記憶集積回路
JPS52140238A (en) Memory erasion unit
RU98119738A (ru) Полупроводниковое запоминающее устройство
JPH02144200U (OSRAM)
JPH0528798A (ja) 半導体メモリの検定装置
JPS603081A (ja) Ｉｃカ−ド
JPS6025004U (ja) シ−ケンスコントロ−ラのデ−タメモリ
KR960024972A (ko) Cpu의 동작 속도 향상을 위한 프로그램 메모리 구성회로
JPS6184991U (OSRAM)
JPS5884699U (ja) 半導体メモリ消去装置
JPH0449400U (OSRAM)
JPH0397703U (OSRAM)
JPS6112635Y2 (OSRAM)
JPH05190788A (ja) 半導体記憶装置
JPS62154286A (ja) 書き替え可能メモリに対するライト・アクセス方式