JPH02147935U - - Google Patents
Info
- Publication number
- JPH02147935U JPH02147935U JP5780789U JP5780789U JPH02147935U JP H02147935 U JPH02147935 U JP H02147935U JP 5780789 U JP5780789 U JP 5780789U JP 5780789 U JP5780789 U JP 5780789U JP H02147935 U JPH02147935 U JP H02147935U
- Authority
- JP
- Japan
- Prior art keywords
- counting circuit
- gate
- input terminal
- added
- utility
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Tests Of Electronic Circuits (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
従来の計数回路の回路図、第３図は従来の計数回
路にテスト入力端子を付加した場合の回路図であ
る。
１……計数回路、２……オアゲート、３，４…
…アンドゲート、Ｄ０，Ｄ１，Ｄ２，Ｄ３，Ｄ４
，Ｄ５，Ｄ６，Ｄ７……データ入力端子、Ｌ……
ロード入力端子。
FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram of a conventional counting circuit, and FIG. 3 is a circuit diagram of a conventional counting circuit in which a test input terminal is added. 1... Counting circuit, 2... OR gate, 3, 4...
...and gate, D0, D1, D2, D3, D4
, D5, D6, D7...Data input terminal, L...
Load input terminal.
Claims (1)
ータ入力端子とに外部からの試験データを設定す
るためのアンドあるいはオアゲートを付加するこ
とを特徴とする計数回路。 A counting circuit characterized in that an AND or OR gate for setting test data from the outside is added to a load terminal and a data input terminal of the counting circuit built into the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5780789U JPH02147935U (en) | 1989-05-18 | 1989-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5780789U JPH02147935U (en) | 1989-05-18 | 1989-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02147935U true JPH02147935U (en) | 1990-12-17 |
Family
ID=31582852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5780789U Pending JPH02147935U (en) | 1989-05-18 | 1989-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02147935U (en) |
-
1989
- 1989-05-18 JP JP5780789U patent/JPH02147935U/ja active Pending
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