JPS6412722A - Bipolar logic circuit - Google Patents
Bipolar logic circuitInfo
- Publication number
- JPS6412722A JPS6412722A JP62170046A JP17004687A JPS6412722A JP S6412722 A JPS6412722 A JP S6412722A JP 62170046 A JP62170046 A JP 62170046A JP 17004687 A JP17004687 A JP 17004687A JP S6412722 A JPS6412722 A JP S6412722A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- emitter
- base
- load capacitance
- output
- 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
- Electronic Switches (AREA)
- Logic Circuits (AREA)
Abstract
PURPOSE:To accelerate response speed, by discharging an electric charge accumulated in a load capacitance by a transistor when an internal output level in an ECL circuit falls from a high level to a low level. CONSTITUTION:The bases with the same polarity in complementary type transistors consisting of transistors Q11 and Q13, and Q12 and Q14 are connected with each other. When the voltages in a forward direction of the base and the emitter of the transistor are equal, an output terminal 13 is set at the same high level state as an input terminal 11, and charging to the load capacitance CL at the output terminal 13 is performed by the transistor Q12. When potential at the input terminal 11 drops to the low level, a voltage larger than the voltage VF in the forward direction applied on the base and the emitter ordinarily is applied between the base and the emitter of the transistor Q14, and as a result, the electric charge accumulated in the load capacitance CL is discharged by the transistor Q14, and output falls steeply.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170046A JPS6412722A (en) | 1987-07-07 | 1987-07-07 | Bipolar logic circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170046A JPS6412722A (en) | 1987-07-07 | 1987-07-07 | Bipolar logic circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6412722A true JPS6412722A (en) | 1989-01-17 |
Family
ID=15897612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62170046A Pending JPS6412722A (en) | 1987-07-07 | 1987-07-07 | Bipolar logic circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6412722A (en) |
-
1987
- 1987-07-07 JP JP62170046A patent/JPS6412722A/en active Pending
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