JPS5742234A - Logical circuit - Google Patents
Logical circuitInfo
- Publication number
- JPS5742234A JPS5742234A JP11796080A JP11796080A JPS5742234A JP S5742234 A JPS5742234 A JP S5742234A JP 11796080 A JP11796080 A JP 11796080A JP 11796080 A JP11796080 A JP 11796080A JP S5742234 A JPS5742234 A JP S5742234A
- Authority
- JP
- Japan
- Prior art keywords
- level
- output
- circuit
- diode
- power supply
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
- H03K19/082—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using bipolar transistors
- H03K19/088—Transistor-transistor logic
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/01—Modifications for accelerating switching
- H03K19/013—Modifications for accelerating switching in bipolar transistor circuits
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Logic Circuits (AREA)
Abstract
PURPOSE:To enable high-speed operation with low-power consumption, by connecting an output terminal of an output transistor (TR) to the high potential side of power supply via a diode, in a TTL logical circuit having an H-level clamp circuit. CONSTITUTION:This circuit is at H level for the output when an output TRQ3 and an amplifier TRQ2 are turned off and at L level when the TRs Q3, Q2 turn on. When this output OUT rises from L to H level, the electric charging of the output terminal OUT is quickly made by a current flowing from a power supply Vcc through a low resistor R2 and a diode Q6. The current at H level is limited with a high resistance resistor R5 to be very small.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11796080A JPS5742234A (en) | 1980-08-27 | 1980-08-27 | Logical circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11796080A JPS5742234A (en) | 1980-08-27 | 1980-08-27 | Logical circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5742234A true JPS5742234A (en) | 1982-03-09 |
Family
ID=14724503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11796080A Pending JPS5742234A (en) | 1980-08-27 | 1980-08-27 | Logical circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5742234A (en) |
-
1980
- 1980-08-27 JP JP11796080A patent/JPS5742234A/en active Pending
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