JPS6438673A - Semiconductor integrated circuit - Google Patents
Semiconductor integrated circuitInfo
- Publication number
- JPS6438673A JPS6438673A JP62196106A JP19610687A JPS6438673A JP S6438673 A JPS6438673 A JP S6438673A JP 62196106 A JP62196106 A JP 62196106A JP 19610687 A JP19610687 A JP 19610687A JP S6438673 A JPS6438673 A JP S6438673A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- test
- pulse data
- test 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.)
- Granted
Links
Landscapes
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
PURPOSE:To miniaturize the package of a semiconductor integrated circuit, by constituting the title circuit of an electronic circuit having at least one kind of a test mode and composed of at least one functional block, an input terminal having at least one test mode setting function along with a usual function and a pulse data decoding circuit. CONSTITUTION:When a pulse data having frequency exceeding the upper limit of the frequency of the signal used at a usual function time is inputted to an input terminal 2, a pulse data decoding circuit 11 decodes said data. When the decoding result is judged to be a signal for setting a test mode, either one of test circuit selection signals 12-14 is outputted. Either one of test circuits 8-10 is selected by said signal to perform the test of either one of the function blocks 5-7 corresponding thereto. When the pulse data is discriminated to be a signal of usual function, the circuit 11 outputs a usual function signal 15 and an electronic circuit performs usual operation. Therefore, since it is unnecessary to provide an exclusive terminal for setting a test mode, the use efficiency of a terminal is enhanced and the package of a semiconductor integrated circuit can be miniaturized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196106A JPH0833439B2 (en) | 1987-08-04 | 1987-08-04 | Semiconductor integrated circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196106A JPH0833439B2 (en) | 1987-08-04 | 1987-08-04 | Semiconductor integrated circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6438673A true JPS6438673A (en) | 1989-02-08 |
JPH0833439B2 JPH0833439B2 (en) | 1996-03-29 |
Family
ID=16352334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62196106A Expired - Lifetime JPH0833439B2 (en) | 1987-08-04 | 1987-08-04 | Semiconductor integrated circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0833439B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5868620A (en) * | 1995-09-12 | 1999-02-09 | Konami Co., Ltd. | Multidirectional switch and a driving game machine using the same |
KR20170069510A (en) * | 2015-12-11 | 2017-06-21 | 에스케이하이닉스 주식회사 | Circuit for setting test mode and semiconductor device including the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5794940B2 (en) * | 2012-03-22 | 2015-10-14 | 三菱電機株式会社 | Integrated circuit device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745943A (en) * | 1980-09-02 | 1982-03-16 | Toshiba Corp | Semiconductor integrated circuit device |
-
1987
- 1987-08-04 JP JP62196106A patent/JPH0833439B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745943A (en) * | 1980-09-02 | 1982-03-16 | Toshiba Corp | Semiconductor integrated circuit device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5868620A (en) * | 1995-09-12 | 1999-02-09 | Konami Co., Ltd. | Multidirectional switch and a driving game machine using the same |
KR20170069510A (en) * | 2015-12-11 | 2017-06-21 | 에스케이하이닉스 주식회사 | Circuit for setting test mode and semiconductor device including the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0833439B2 (en) | 1996-03-29 |
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Legal Events
Date | Code | Title | Description |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080329 Year of fee payment: 12 |