JPS5657136A - Semiconductor logical operation circuit - Google Patents
Semiconductor logical operation circuitInfo
- Publication number
- JPS5657136A JPS5657136A JP13330979A JP13330979A JPS5657136A JP S5657136 A JPS5657136 A JP S5657136A JP 13330979 A JP13330979 A JP 13330979A JP 13330979 A JP13330979 A JP 13330979A JP S5657136 A JPS5657136 A JP S5657136A
- Authority
- JP
- Japan
- Prior art keywords
- vee
- circuit
- power supply
- power sources
- power
- 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
Abstract
PURPOSE: To make it possible to extract simply latent defects in the large-scale integrated logical operation circuit equipped with a power supply compensating circuit, by switching giving the same change to power sources of the bias generating circuit and giving independent change to them.
CONSTITUTION: Bias generating circuit 10 to compensate power supply of the extra-high speed logical operation circuit is provided. At the normal operation time, switch SW is so closed that power sources VEE and VEE' may have the same change, thereby compensating power supply. In case that the power supply operation margin test for defect extraction is performed, switch SW is opened to change power sources VEE and VEE' independently of each other. Since resistance RE connected to current source transistor Q3 is connected to power source VEE though circuit 10 generates constant voltage VCS on a basis of power source VEE, the current value of the current switch is increased or reduced to be able to perform the operation margin test by changing potentials of power sources VEE and VEE' properly independently of each other. As a result, latent defects can be extracted simply.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13330979A JPS5657136A (en) | 1979-10-16 | 1979-10-16 | Semiconductor logical operation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13330979A JPS5657136A (en) | 1979-10-16 | 1979-10-16 | Semiconductor logical operation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5657136A true JPS5657136A (en) | 1981-05-19 |
JPS6144334B2 JPS6144334B2 (en) | 1986-10-02 |
Family
ID=15101650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13330979A Granted JPS5657136A (en) | 1979-10-16 | 1979-10-16 | Semiconductor logical operation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657136A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302892A (en) * | 1991-09-12 | 1994-04-12 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor integrated circuit |
-
1979
- 1979-10-16 JP JP13330979A patent/JPS5657136A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302892A (en) * | 1991-09-12 | 1994-04-12 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor integrated circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6144334B2 (en) | 1986-10-02 |
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