JPS5637894A - High-speed memory testing method - Google Patents
High-speed memory testing methodInfo
- Publication number
- JPS5637894A JPS5637894A JP11076779A JP11076779A JPS5637894A JP S5637894 A JPS5637894 A JP S5637894A JP 11076779 A JP11076779 A JP 11076779A JP 11076779 A JP11076779 A JP 11076779A JP S5637894 A JPS5637894 A JP S5637894A
- Authority
- JP
- Japan
- Prior art keywords
- address
- tester
- test
- speed
- testing method
- 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
Links
Abstract
PURPOSE: To enable a tester of a low-speed test cycle to test a high-speed-cycle memory to be tested, by using an address from the tester and that from an artificial address counter.
CONSTITUTION: The 1st address from the tester and the 2nd address from artificial address counter 11 are stored 12 and 15 and through the time-division operation of multiplexer 17, they are supplied alternately to memory 18 to be tested at high-speed cycles. Then, test data are written at the 1st address from the tester first and read out from the 2nd address; and they are read out alternately by using the 1st and 2nd address; thereby finishing a single test. Next, read data obtained by using the 2nd address are sequentially compared 26 and 27 to make sure 28 of their identity and at the same time, write data by the 1st address and following read data are checked in terms of characteristics.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11076779A JPS5637894A (en) | 1979-08-30 | 1979-08-30 | High-speed memory testing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11076779A JPS5637894A (en) | 1979-08-30 | 1979-08-30 | High-speed memory testing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5637894A true JPS5637894A (en) | 1981-04-11 |
Family
ID=14544055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11076779A Pending JPS5637894A (en) | 1979-08-30 | 1979-08-30 | High-speed memory testing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5637894A (en) |
-
1979
- 1979-08-30 JP JP11076779A patent/JPS5637894A/en active Pending
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