JPS59193030U - logic circuit - Google Patents
logic circuitInfo
- Publication number
- JPS59193030U JPS59193030U JP8632483U JP8632483U JPS59193030U JP S59193030 U JPS59193030 U JP S59193030U JP 8632483 U JP8632483 U JP 8632483U JP 8632483 U JP8632483 U JP 8632483U JP S59193030 U JPS59193030 U JP S59193030U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- semiconductor integrated
- logic circuit
- integrated circuit
- logic
- 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
Landscapes
- Logic Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例の検査容易な論理回路図、第
２図はＬＳＩの入力端子が出力端子より多い場合の回路
図、第３図は入力端子が出力端子より少い場合の回路図
である。
ｌＡ、 ＩＢ；パッケージの論理回路、２；ＬＳＩ。
５、；ＬＳＩの論理回路、６；出力信号切替ゲート、１
０；検査切替信号端子。Fig. 1 is an easy-to-test logic circuit diagram of an embodiment of the present invention, Fig. 2 is a circuit diagram when the LSI has more input terminals than output terminals, and Fig. 3 shows a circuit diagram when there are fewer input terminals than output terminals. It is a circuit diagram. lA, IB; package logic circuit, 2; LSI. 5, LSI logic circuit, 6; Output signal switching gate, 1
0: Inspection switching signal terminal.
Claims (1)
る論理回路の他に、該半導体集積回路への入力信号を出
力端子に伝達する前記半導体集積回路が目的とする論理
回路より構成の簡単な回路と、これ等２つの論理回路の
出力を切替えて出力に伝達する切替回路とを備えたこと
を特徴とする論理回路。In a semiconductor integrated circuit, in addition to the logic circuit targeted by the semiconductor integrated circuit, there is also a circuit having a simpler configuration than the logic circuit targeted by the semiconductor integrated circuit, which transmits an input signal to the semiconductor integrated circuit to an output terminal. , and a switching circuit that switches the outputs of these two logic circuits and transmits the same to the output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8632483U JPS59193030U (en) | 1983-06-08 | 1983-06-08 | logic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8632483U JPS59193030U (en) | 1983-06-08 | 1983-06-08 | logic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59193030U true JPS59193030U (en) | 1984-12-21 |
Family
ID=30216262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8632483U Pending JPS59193030U (en) | 1983-06-08 | 1983-06-08 | logic circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59193030U (en) |
-
1983
- 1983-06-08 JP JP8632483U patent/JPS59193030U/en active Pending
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