KR900006047B1 - 전압 레벨 변환기 - Google Patents
전압 레벨 변환기 Download PDFInfo
- Publication number
- KR900006047B1 KR900006047B1 KR1019870007260A KR870007260A KR900006047B1 KR 900006047 B1 KR900006047 B1 KR 900006047B1 KR 1019870007260 A KR1019870007260 A KR 1019870007260A KR 870007260 A KR870007260 A KR 870007260A KR 900006047 B1 KR900006047 B1 KR 900006047B1
- Authority
- KR
- South Korea
- Prior art keywords
- ttl
- transistor
- level
- circuit
- resistor
- 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.)
- Expired
Links
Images
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
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- 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
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/018—Coupling arrangements; Interface arrangements using bipolar transistors only
- H03K19/01806—Interface arrangements
- H03K19/01812—Interface arrangements with at least one differential stage
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Logic Circuits (AREA)
Abstract
Description
Claims (1)
- 레벨 이동 회로와 에미터 커플드 페어 출력만을 구비하여 TTL회로와 ECL회로를 매칭시키기 위한 전압레벨 변환기에 있어서, TTL레벨 입력만을 트랜지스터(Q1,Q2) 및 저항(R1,R2)의 에미터 커플드 페어로 연결하여 TTL입력신호에 의하여 그 출력을 레벨 이동 회로로 인가하도록 연결하고, 상기 한 TTL입력신호가 하이레벨에서는 TTL회로의 풀업 트랜지스터로부터 접지된 저항(R3)을 통하여 전류가 흐르고 로우레벨에서는 트랜지스터(Q3)와 저항(R4)을 통하여 TTL회로의 풀 다운 트랜지스터로 전류가 흐르도륵 연결하며, 상기 한 트랜지스터(Q2,Q3)의 바이어스를 위해 저항(R5-R8) 및 트랜지스터(Q4)을 연결한 것을 특징으로 하는 전압레벨 변환기.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019870007260A KR900006047B1 (ko) | 1987-07-07 | 1987-07-07 | 전압 레벨 변환기 |
US07/215,294 US5025180A (en) | 1987-07-07 | 1988-07-05 | TTL to ECL voltage level translator |
JP63168648A JPH021610A (ja) | 1987-07-07 | 1988-07-06 | 電圧レベル変換器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019870007260A KR900006047B1 (ko) | 1987-07-07 | 1987-07-07 | 전압 레벨 변환기 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890003130A KR890003130A (ko) | 1989-04-12 |
KR900006047B1 true KR900006047B1 (ko) | 1990-08-20 |
Family
ID=19262799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870007260A Expired KR900006047B1 (ko) | 1987-07-07 | 1987-07-07 | 전압 레벨 변환기 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5025180A (ko) |
JP (1) | JPH021610A (ko) |
KR (1) | KR900006047B1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5124591A (en) * | 1990-09-04 | 1992-06-23 | International Business Machines Corporation | Low power push pull driver |
US5334886A (en) * | 1992-11-13 | 1994-08-02 | International Business Machines Corporation | Direct-coupled PNP transistor pull-up ECL circuits and direct-coupled complementary push-pull ECL circuits |
US5349253A (en) * | 1992-12-17 | 1994-09-20 | Vtc Inc. | Logic translator interfacing between five-volt TTL/CMOS and three-volt CML |
US5920729A (en) * | 1996-04-30 | 1999-07-06 | Vtc Inc. | Apparatus for providing pair of complementary outputs with first and subcircuits to convert non-complementary and complementary inputs to first and second pair of complementary output |
US6483345B1 (en) | 1999-06-23 | 2002-11-19 | Nortel Networks Limited | High speed level shift circuit for low voltage output |
JP4821358B2 (ja) * | 2006-02-15 | 2011-11-24 | ミツミ電機株式会社 | 信号出力回路及び半導体集積回路 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3217237A1 (de) * | 1982-05-07 | 1983-11-10 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur pegelumsetzung |
US4518876A (en) * | 1983-03-30 | 1985-05-21 | Advanced Micro Devices, Inc. | TTL-ECL Input translation with AND/NAND function |
US4527079A (en) * | 1983-11-01 | 1985-07-02 | Advanced Micro Devices, Inc. | Integrated circuit device accepting inputs and providing outputs at the levels of different logic families |
US4654549A (en) * | 1985-06-04 | 1987-03-31 | Fairchild Semiconductor Corporation | Transistor-transistor logic to emitter coupled logic translator |
JPH0763139B2 (ja) * | 1985-10-31 | 1995-07-05 | 日本電気株式会社 | レベル変換回路 |
US4700087A (en) * | 1986-12-23 | 1987-10-13 | Tektronix, Inc. | Logic signal level conversion circuit |
US4806800A (en) * | 1987-11-20 | 1989-02-21 | Tandem Computers Incorporated | TTL-to-ECL input translator/driver circuit |
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1987
- 1987-07-07 KR KR1019870007260A patent/KR900006047B1/ko not_active Expired
-
1988
- 1988-07-05 US US07/215,294 patent/US5025180A/en not_active Expired - Lifetime
- 1988-07-06 JP JP63168648A patent/JPH021610A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
KR890003130A (ko) | 1989-04-12 |
JPH021610A (ja) | 1990-01-05 |
US5025180A (en) | 1991-06-18 |
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Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19870707 |
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