JPS6266431U - - Google Patents
Info
- Publication number
- JPS6266431U JPS6266431U JP15766385U JP15766385U JPS6266431U JP S6266431 U JPS6266431 U JP S6266431U JP 15766385 U JP15766385 U JP 15766385U JP 15766385 U JP15766385 U JP 15766385U JP S6266431 U JPS6266431 U JP S6266431U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- output
- resistor
- collector
- input signal
- 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
- Logic Circuits (AREA)
Description
第１図は本考案のＴＴＬ出力回路の一実施例を
示す回路図、第２図は従来のＴＴＬ出力回路の一
例を示す回路図、第３図は第２図の入出力波形の
模式図である。
２：入力用トランジスタ、３：出力用トランジ
スタ、６，１１〜１３：抵抗、７〜９：ダイオー
ド接続のトランジスタ、１０：トランジスタ。
Fig. 1 is a circuit diagram showing an example of the TTL output circuit of the present invention, Fig. 2 is a circuit diagram showing an example of a conventional TTL output circuit, and Fig. 3 is a schematic diagram of the input/output waveforms of Fig. 2. be. 2: Input transistor, 3: Output transistor, 6, 11-13: Resistor, 7-9: Diode-connected transistor, 10: Transistor.
Claims (1)
力パルスを出力するＴＴＬ出力回路において、前
記入力信号を入力する入力用トランジスタのエミ
ツタに抵抗を接続し、該抵抗の他端に出力用トラ
ンジスタのベースを接続するとともに、定電流源
駆動するトランジスタのコレクタを接続して、前
記出力用トランジスタのベース電流を制御する構
成としたことを特徴とするＴＴＬ出力回路。 In a TTL output circuit that inverts the level of an input signal and outputs an output pulse of a predetermined level, a resistor is connected to the emitter of an input transistor that inputs the input signal, and the base of the output transistor is connected to the other end of the resistor. A TTL output circuit characterized in that the base current of the output transistor is controlled by connecting the collector of the transistor and the collector of the transistor driven by a constant current source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15766385U JPS6266431U (en) | 1985-10-15 | 1985-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15766385U JPS6266431U (en) | 1985-10-15 | 1985-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6266431U true JPS6266431U (en) | 1987-04-24 |
Family
ID=31080421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15766385U Pending JPS6266431U (en) | 1985-10-15 | 1985-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6266431U (en) |
-
1985
- 1985-10-15 JP JP15766385U patent/JPS6266431U/ja active Pending
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