JPS6457821A - Ttl circuit - Google Patents
Ttl circuitInfo
- Publication number
- JPS6457821A JPS6457821A JP21315087A JP21315087A JPS6457821A JP S6457821 A JPS6457821 A JP S6457821A JP 21315087 A JP21315087 A JP 21315087A JP 21315087 A JP21315087 A JP 21315087A JP S6457821 A JPS6457821 A JP S6457821A
- Authority
- JP
- Japan
- Prior art keywords
- turned
- trs
- emitter
- level
- totempole
- 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
- H03K19/0008—Arrangements for reducing power consumption
- H03K19/001—Arrangements for reducing power consumption in bipolar transistor circuits
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Logic Circuits (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To attain high speed switching and to reduce a through-current of a totempole output by giving a difference to threshold voltages of two transistors(TRs) at the input stage. CONSTITUTION:Let a forward voltage of PN junction be VD, the threshold voltage of the emitter of a 1st TR Q1 be 3VD and the threshold voltage of the emitter of a 2nd TR Q2 be 2VD. When the emitter level of the 1st and 2nd TRs Q1, Q2 transits from a low to a high level, a 5th TR Q5 is turned on earlier than a 3rd TR Q3 and the collector voltage of the 5th TR Q5 goes to a low level, then a 4th TR Q4 is turned on after a 6th TR Q6 of the totempole output is turned off. Thus, the time when both the 4th and 6th TRs Q4, Q6 are turned on simultaneously is decreased and the through-current is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21315087A JPS6457821A (en) | 1987-08-28 | 1987-08-28 | Ttl circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21315087A JPS6457821A (en) | 1987-08-28 | 1987-08-28 | Ttl circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6457821A true JPS6457821A (en) | 1989-03-06 |
Family
ID=16634399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21315087A Pending JPS6457821A (en) | 1987-08-28 | 1987-08-28 | Ttl circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6457821A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5034631A (en) * | 1989-02-24 | 1991-07-23 | Sgs-Thomson Microelectronics S.A. | TTL compatible output circuit with a high switching speed |
WO1993001656A1 (en) * | 1991-07-09 | 1993-01-21 | Micro Linear Corporation | Power mosfet driver with cross-conduction current reduction |
-
1987
- 1987-08-28 JP JP21315087A patent/JPS6457821A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5034631A (en) * | 1989-02-24 | 1991-07-23 | Sgs-Thomson Microelectronics S.A. | TTL compatible output circuit with a high switching speed |
WO1993001656A1 (en) * | 1991-07-09 | 1993-01-21 | Micro Linear Corporation | Power mosfet driver with cross-conduction current reduction |
US5281862A (en) * | 1991-07-09 | 1994-01-25 | Micro Linear Corporation | Power MOSFET driver with cross-conduction current reduction |
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