JPH0281062U - - Google Patents
Info
- Publication number
- JPH0281062U JPH0281062U JP16000188U JP16000188U JPH0281062U JP H0281062 U JPH0281062 U JP H0281062U JP 16000188 U JP16000188 U JP 16000188U JP 16000188 U JP16000188 U JP 16000188U JP H0281062 U JPH0281062 U JP H0281062U
- Authority
- JP
- Japan
- Prior art keywords
- diffused resistor
- diffused
- input
- resistor
- substrate
- 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
- 239000000758 substrate Substances 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
第１図は本考案の入力保護回路の第１の実施例
を示す構成図、第２図は本考案の第２の実施例の
回路構成図、第３図は第１および第２の実施例の
入力電圧対電流の特性を示す図、第４図は従来の
入力保護回路の構成図である。
ＶＩ……入力端子、ＶＣＣ……電源端子、１…
…拡散抵抗、２，３，６……ダイオード、４，４
′……Ｎｃｈトランジスタ、５……入力ゲート。
FIG. 1 is a block diagram showing a first embodiment of the input protection circuit of the present invention, FIG. 2 is a circuit diagram of a second embodiment of the present invention, and FIG. 3 is a block diagram of the first and second embodiments. FIG. 4 is a block diagram of a conventional input protection circuit. VI...Input terminal, VCC...Power supply terminal, 1...
...Diffused resistance, 2, 3, 6...Diode, 4, 4
'...Nch transistor, 5...Input gate.
Claims (1)
て、前記基板に拡散形成された拡散抵抗およびダ
イオードと、該拡散抵抗の一端に接続された入力
端子と、該拡散抵抗の他端に接続された入力ゲー
トと、該拡散抵抗の他端と電源端子との間に接続
されたトランジスタとを具備することを特徴とす
る入力保護回路。 In an input protection circuit formed on one semiconductor substrate, a diffused resistor and a diode are diffused and formed in the substrate, an input terminal connected to one end of the diffused resistor, and an input gate connected to the other end of the diffused resistor. and a transistor connected between the other end of the diffused resistor and a power supply terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16000188U JPH0281062U (en) | 1988-12-08 | 1988-12-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16000188U JPH0281062U (en) | 1988-12-08 | 1988-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0281062U true JPH0281062U (en) | 1990-06-22 |
Family
ID=31441703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16000188U Pending JPH0281062U (en) | 1988-12-08 | 1988-12-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0281062U (en) |
-
1988
- 1988-12-08 JP JP16000188U patent/JPH0281062U/ja active Pending
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