JPS52116027A - Memory protection circuit in small size electronic devices - Google Patents

Memory protection circuit in small size electronic devices

Info

Publication number
JPS52116027A
JPS52116027A JP3280976A JP3280976A JPS52116027A JP S52116027 A JPS52116027 A JP S52116027A JP 3280976 A JP3280976 A JP 3280976A JP 3280976 A JP3280976 A JP 3280976A JP S52116027 A JPS52116027 A JP S52116027A
Authority
JP
Japan
Prior art keywords
electronic devices
protection circuit
small size
memory protection
size electronic
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
JP3280976A
Other languages
Japanese (ja)
Inventor
Takao Uchikura
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP3280976A priority Critical patent/JPS52116027A/en
Publication of JPS52116027A publication Critical patent/JPS52116027A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To protect the memory content, by detecting the rated value for the level and inhibiting the data reception and transmission between the operational control circuit and the memory, when the cell voltage is less than the rated value.
COPYRIGHT: (C)1977,JPO&Japio
JP3280976A 1976-03-25 1976-03-25 Memory protection circuit in small size electronic devices Pending JPS52116027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3280976A JPS52116027A (en) 1976-03-25 1976-03-25 Memory protection circuit in small size electronic devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3280976A JPS52116027A (en) 1976-03-25 1976-03-25 Memory protection circuit in small size electronic devices

Publications (1)

Publication Number Publication Date
JPS52116027A true JPS52116027A (en) 1977-09-29

Family

ID=12369150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3280976A Pending JPS52116027A (en) 1976-03-25 1976-03-25 Memory protection circuit in small size electronic devices

Country Status (1)

Country Link
JP (1) JPS52116027A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553445U (en) * 1978-06-23 1980-01-10
JPS57172595A (en) * 1981-04-15 1982-10-23 Ricoh Co Ltd Memory protecting circuit
JPS57184600U (en) * 1981-05-18 1982-11-24
JPH01295327A (en) * 1988-05-23 1989-11-29 Pfu Ltd Replacement time deciding system for parts of printer device
JPH06162767A (en) * 1993-08-11 1994-06-10 Seiko Epson Corp Electronic computer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553445U (en) * 1978-06-23 1980-01-10
JPS5847599Y2 (en) * 1978-06-23 1983-10-29 菊水電子工業株式会社 semiconductor storage device
JPS57172595A (en) * 1981-04-15 1982-10-23 Ricoh Co Ltd Memory protecting circuit
JPS57184600U (en) * 1981-05-18 1982-11-24
JPH0124656Y2 (en) * 1981-05-18 1989-07-26
JPH01295327A (en) * 1988-05-23 1989-11-29 Pfu Ltd Replacement time deciding system for parts of printer device
JPH0528851B2 (en) * 1988-05-23 1993-04-27 Pfu Ltd
JPH06162767A (en) * 1993-08-11 1994-06-10 Seiko Epson Corp Electronic computer

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