JPS5638653A - Semiconductor integrated circuit having conventionality - Google Patents

Semiconductor integrated circuit having conventionality

Info

Publication number
JPS5638653A
JPS5638653A JP11350179A JP11350179A JPS5638653A JP S5638653 A JPS5638653 A JP S5638653A JP 11350179 A JP11350179 A JP 11350179A JP 11350179 A JP11350179 A JP 11350179A JP S5638653 A JPS5638653 A JP S5638653A
Authority
JP
Japan
Prior art keywords
level
fed
input terminal
lsi1
assembling
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.)
Granted
Application number
JP11350179A
Other languages
Japanese (ja)
Other versions
JPS6239453B2 (en
Inventor
Tomohiro Shimizu
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 JP11350179A priority Critical patent/JPS5638653A/en
Publication of JPS5638653A publication Critical patent/JPS5638653A/en
Publication of JPS6239453B2 publication Critical patent/JPS6239453B2/ja
Granted legal-status Critical Current

Links

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  • Calculators And Similar Devices (AREA)

Abstract

PURPOSE: To enable to use one type of LSI to a plurality of units, by selecting either one of the plural operation and operation mode groups in CPU, depending whether either one of level signals of H, L is fed to the external input terminal.
CONSTITUTION: Depending whether either one of H level or L level is fed to the specified external input terminal 9 of LSI1, one of plural operation, operation mode groups of CPU7 is selected. For example, the LSI1 of small size desk top electronic calculator with watch function is provided with the logic circuit as shown in Figure. Further, when the signal of L level is fed to the input terminal 9 with the assembling, after the entry of desired time data, if the set key 4 and entry keys (1)W(3) are operated, respectively the time set, alarm set, and timer set are made. If assembling is made so that the H level signal is fed to the terminal 9, the time set only is possible.
COPYRIGHT: (C)1981,JPO&Japio
JP11350179A 1979-09-06 1979-09-06 Semiconductor integrated circuit having conventionality Granted JPS5638653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11350179A JPS5638653A (en) 1979-09-06 1979-09-06 Semiconductor integrated circuit having conventionality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11350179A JPS5638653A (en) 1979-09-06 1979-09-06 Semiconductor integrated circuit having conventionality

Publications (2)

Publication Number Publication Date
JPS5638653A true JPS5638653A (en) 1981-04-13
JPS6239453B2 JPS6239453B2 (en) 1987-08-24

Family

ID=14613917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11350179A Granted JPS5638653A (en) 1979-09-06 1979-09-06 Semiconductor integrated circuit having conventionality

Country Status (1)

Country Link
JP (1) JPS5638653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922156A (en) * 1982-07-27 1984-02-04 Koito Mfg Co Ltd Composite function device
JP2006181337A (en) * 2004-11-30 2006-07-13 Itoki Corp Semi-private facilities and medical / nursing facilities equipped with them

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046018U (en) * 1973-08-25 1975-05-08
JPS5077065A (en) * 1973-11-07 1975-06-24
JPS5193131U (en) * 1974-08-07 1976-07-26
JPS524877A (en) * 1975-07-01 1977-01-14 Citizen Watch Co Ltd Digital electronic clock
JPS5330371A (en) * 1976-09-01 1978-03-22 Citizen Watch Co Ltd Electronic circuit for timepiece
JPS5364557A (en) * 1976-11-22 1978-06-09 Seiko Epson Corp Electronic portable watch
JPS5370267U (en) * 1976-11-15 1978-06-13
JPS5368051A (en) * 1976-11-29 1978-06-17 Sharp Corp Integrated circuit device
JPS53113449A (en) * 1977-03-15 1978-10-03 Citizen Watch Co Ltd Portable electronic unit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046018U (en) * 1973-08-25 1975-05-08
JPS5077065A (en) * 1973-11-07 1975-06-24
JPS5193131U (en) * 1974-08-07 1976-07-26
JPS524877A (en) * 1975-07-01 1977-01-14 Citizen Watch Co Ltd Digital electronic clock
JPS5330371A (en) * 1976-09-01 1978-03-22 Citizen Watch Co Ltd Electronic circuit for timepiece
JPS5370267U (en) * 1976-11-15 1978-06-13
JPS5364557A (en) * 1976-11-22 1978-06-09 Seiko Epson Corp Electronic portable watch
JPS5368051A (en) * 1976-11-29 1978-06-17 Sharp Corp Integrated circuit device
JPS53113449A (en) * 1977-03-15 1978-10-03 Citizen Watch Co Ltd Portable electronic unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922156A (en) * 1982-07-27 1984-02-04 Koito Mfg Co Ltd Composite function device
JP2006181337A (en) * 2004-11-30 2006-07-13 Itoki Corp Semi-private facilities and medical / nursing facilities equipped with them

Also Published As

Publication number Publication date
JPS6239453B2 (en) 1987-08-24

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