JPS5673359A - Writing device of memory test pattern - Google Patents
Writing device of memory test patternInfo
- Publication number
- JPS5673359A JPS5673359A JP15089979A JP15089979A JPS5673359A JP S5673359 A JPS5673359 A JP S5673359A JP 15089979 A JP15089979 A JP 15089979A JP 15089979 A JP15089979 A JP 15089979A JP S5673359 A JPS5673359 A JP S5673359A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- write
- data
- set signal
- generating unit
- 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
- Tests Of Electronic Circuits (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
Abstract
PURPOSE: To enable the write of the pattern required for the test in a memory unit in a high speed by a method wherein a pattern generating unit and a control unit are actuated synchronously.
CONSTITUTION: When a write command is issued from the pattern generating unit 21 to the control unit 22, an address set signal, a clock pulse and a data set signal are generated and a write start address is set in an address counter 28 by means of the address set signal. And further, a parallel data from the generating unit 21 are set in a data column conversion unit 29 by means of the data set signal. The conversion unit 29 is shifted with the clock pulse and outputs the input parallel data as a series data and at the same time, the counter 28 steps to a certain direction. And further, a write pulse is created from the clock pulse in a pulse generating unit 33 and a pattern memory unit 19 performs a write operation and the output of the conversion unit 29 is written by means of the content of the counter 28.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54150899A JPS6011398B2 (en) | 1979-11-21 | 1979-11-21 | Memory test pattern writing device |
US06/205,162 US4369511A (en) | 1979-11-21 | 1980-11-10 | Semiconductor memory test equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54150899A JPS6011398B2 (en) | 1979-11-21 | 1979-11-21 | Memory test pattern writing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5673359A true JPS5673359A (en) | 1981-06-18 |
JPS6011398B2 JPS6011398B2 (en) | 1985-03-25 |
Family
ID=15506806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54150899A Expired JPS6011398B2 (en) | 1979-11-21 | 1979-11-21 | Memory test pattern writing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6011398B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3338153A1 (en) * | 1982-12-01 | 1984-06-07 | The Singer Co., Stamford, Conn. | METHOD FOR TESTING THE INFECTIVITY OF AN ADDITIONAL STORAGE SOURCE FOR USE IN AN ELECTRONICALLY CONTROLLED SEWING MACHINE |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0279300A (en) * | 1988-09-16 | 1990-03-19 | Sanyo Electric Co Ltd | Sound recording/reproducing device |
-
1979
- 1979-11-21 JP JP54150899A patent/JPS6011398B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3338153A1 (en) * | 1982-12-01 | 1984-06-07 | The Singer Co., Stamford, Conn. | METHOD FOR TESTING THE INFECTIVITY OF AN ADDITIONAL STORAGE SOURCE FOR USE IN AN ELECTRONICALLY CONTROLLED SEWING MACHINE |
Also Published As
Publication number | Publication date |
---|---|
JPS6011398B2 (en) | 1985-03-25 |
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