JPH0192169U - - Google Patents
Info
- Publication number
- JPH0192169U JPH0192169U JP18774587U JP18774587U JPH0192169U JP H0192169 U JPH0192169 U JP H0192169U JP 18774587 U JP18774587 U JP 18774587U JP 18774587 U JP18774587 U JP 18774587U JP H0192169 U JPH0192169 U JP H0192169U
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- circuit
- external elements
- requires
- 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 4
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Structure Of Printed Boards (AREA)
Description
第１図は、本考案実施例の回路基板の説明図、
第２図ａは、同回路基板の通常使用におけるＩＣ
の接続状態を示す図、第２図ｂは、同基板におけ
るＩＣの機能追加使用における接続状態を示す図
、第３図ａ乃至第３図ｃは夫々ここで用いられる
ＩＣとこれに内蔵されている２つの機能回路とを
示す図、第４図は、従来の回路基板を示す図であ
る。
Ｖ１……第１のモノバイブレータ回路、Ｖ２…
…第２のモノバイブレータ回路、Ａ１〜Ａ６……
端子パターン、Ｂ１〜Ｂ６……（予備）端子パタ
ーン、Ｒ，Ｒ１，Ｒ２……チツプ抵抗、Ｃ，Ｃ１
，Ｃ２……チツプコンデンサ、Ｄ，Ｄ１，Ｄ２…
…チツプダイオード、Ｋ……プルダウン接続パタ
ーン。
FIG. 1 is an explanatory diagram of a circuit board according to an embodiment of the present invention;
Figure 2a shows the IC in normal use of the circuit board.
FIG. 2b is a diagram showing the connection state when the IC is used for additional functions on the board, and FIGS. 3a to 3c are diagrams showing the IC used here and the built-in IC. FIG. 4 is a diagram showing a conventional circuit board. V1...first monovibrator circuit, V2...
...Second monovibrator circuit, A1 to A6...
Terminal pattern, B1 to B6... (spare) terminal pattern, R, R1, R2... Chip resistor, C, C1
, C2... Chip capacitor, D, D1, D2...
...Chip diode, K...Pull-down connection pattern.
Claims (1)
常は使用されない機能回路を含む集積回路を実装
する回路基板において、 前記機能回路の基本機能を実現するのに必要な
外部素子の実装に必要な予備パターンを具備した
ことを特徴とする回路基板。[Claims for Utility Model Registration] In a circuit board on which an integrated circuit is mounted that includes a functional circuit that requires the addition of external elements and is not normally used to realize the basic function, A circuit board characterized by comprising a preliminary pattern necessary for mounting external elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18774587U JPH0192169U (en) | 1987-12-11 | 1987-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18774587U JPH0192169U (en) | 1987-12-11 | 1987-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0192169U true JPH0192169U (en) | 1989-06-16 |
Family
ID=31478878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18774587U Pending JPH0192169U (en) | 1987-12-11 | 1987-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0192169U (en) |
-
1987
- 1987-12-11 JP JP18774587U patent/JPH0192169U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH03120051U (en) | ||
| JPH0467372U (en) | ||
| JPH028043U (en) | ||
| JPS6035548U (en) | integrated circuit | |
| JPH01173950U (en) | ||
| JPS5839049U (en) | Chippukiyariya | |
| JPH0199663U (en) | ||
| JPH0184460U (en) | ||
| JPS6359367U (en) | ||
| JPS59111052U (en) | Hybrid integrated circuit device | |
| JPS6052636U (en) | integrated circuit | |
| JPH0279474U (en) | ||
| JPH02146468U (en) | ||
| JPH0336169U (en) | ||
| JPH0313751U (en) | ||
| JPH0189174U (en) | ||
| JPH0184169U (en) | ||
| JPH03112969U (en) | ||
| JPS6029385U (en) | IC socket | |
| JPS6015763U (en) | double wiring terminals | |
| JPS5827925U (en) | Hybrid integrated circuit device | |
| JPS58445U (en) | Integrated circuit with power supply spring | |
| JPH01137550U (en) | ||
| JPS59107154U (en) | hybrid integrated circuit | |
| JPS59182929U (en) | Tantalum capacitor with fuse |