JPS5531345A - Level conversion circuit - Google Patents

Level conversion circuit

Info

Publication number
JPS5531345A
JPS5531345A JP10465778A JP10465778A JPS5531345A JP S5531345 A JPS5531345 A JP S5531345A JP 10465778 A JP10465778 A JP 10465778A JP 10465778 A JP10465778 A JP 10465778A JP S5531345 A JPS5531345 A JP S5531345A
Authority
JP
Japan
Prior art keywords
potential
resistance
input
emitter
circuit
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.)
Granted
Application number
JP10465778A
Other languages
Japanese (ja)
Other versions
JPH0219651B2 (en
Inventor
Kazuhiro Toyoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10465778A priority Critical patent/JPS5531345A/en
Publication of JPS5531345A publication Critical patent/JPS5531345A/en
Publication of JPH0219651B2 publication Critical patent/JPH0219651B2/ja
Granted legal-status Critical Current

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
    • H03K19/0175—Coupling arrangements; Interface arrangements
    • H03K19/018—Coupling arrangements; Interface arrangements using bipolar transistors only
    • H03K19/01806—Interface arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Logic Circuits (AREA)

Abstract

PURPOSE:To realize a high-speed driving for the internal circuit in accordance with variation of the input level from low to high levels by setting the power source side potential of the emitter resistance of the emitter follower transistor lower than the constant voltage source potential. CONSTITUTION:Transistors TrT3 of the emitter follower is connected in series to resistance R1 and constant voltage source VCC and between source VCC and ground GND. Then diodes D1-D5 are connected between the output end of the TTL circuit and the joint of source VCC and resistance R1 connected to the input end of the emitter combined logic ECL circuit consisting of TrT1 and T2. Here the base of TrT3 is set higher than the input potential within the ECL circuit and also connected to point B featuring the high and low level change along with the input potential. As a result, a high-speed driving is given to the internal circuit in accordance with the variation of the high and low levels.
JP10465778A 1978-08-28 1978-08-28 Level conversion circuit Granted JPS5531345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10465778A JPS5531345A (en) 1978-08-28 1978-08-28 Level conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10465778A JPS5531345A (en) 1978-08-28 1978-08-28 Level conversion circuit

Publications (2)

Publication Number Publication Date
JPS5531345A true JPS5531345A (en) 1980-03-05
JPH0219651B2 JPH0219651B2 (en) 1990-05-02

Family

ID=14386526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10465778A Granted JPS5531345A (en) 1978-08-28 1978-08-28 Level conversion circuit

Country Status (1)

Country Link
JP (1) JPS5531345A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115932A (en) * 1981-12-28 1983-07-09 Fujitsu Ltd Level converting circuit
JPS58177032A (en) * 1982-04-08 1983-10-17 Fujitsu Ltd Level converting circuit
JPS62104314A (en) * 1985-10-31 1987-05-14 Nec Corp Level converting circuit
JPS62230223A (en) * 1986-03-31 1987-10-08 Toshiba Corp Output circuit
JPS62263721A (en) * 1986-05-09 1987-11-16 Mitsubishi Electric Corp D-a converter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49108952A (en) * 1973-02-16 1974-10-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49108952A (en) * 1973-02-16 1974-10-16

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115932A (en) * 1981-12-28 1983-07-09 Fujitsu Ltd Level converting circuit
JPH0363254B2 (en) * 1981-12-28 1991-09-30 Fujitsu Ltd
JPS58177032A (en) * 1982-04-08 1983-10-17 Fujitsu Ltd Level converting circuit
JPH0427732B2 (en) * 1982-04-08 1992-05-12 Fujitsu Ltd
JPS62104314A (en) * 1985-10-31 1987-05-14 Nec Corp Level converting circuit
JPS62230223A (en) * 1986-03-31 1987-10-08 Toshiba Corp Output circuit
JPH0573292B2 (en) * 1986-03-31 1993-10-14 Tokyo Shibaura Electric Co
JPS62263721A (en) * 1986-05-09 1987-11-16 Mitsubishi Electric Corp D-a converter

Also Published As

Publication number Publication date
JPH0219651B2 (en) 1990-05-02

Similar Documents

Publication Publication Date Title
JPS6462016A (en) Output buffer circuit
JPS5490941A (en) Driving circuit of tristate type
JPS55136726A (en) High voltage mos inverter and its drive method
JPS5553924A (en) Semiconductor logic circuit
EP0186260A3 (en) An emitter coupled logic gate circuit
JPS5531345A (en) Level conversion circuit
JPS5384578A (en) Semiconductor integrated circuit
JPS5545207A (en) Complementary mos inverter circuit unit and its production
EP0132005A3 (en) Voltage signal translator
JPS5634230A (en) Logical operation circuit
JPS54148464A (en) Pulse generating circuit
JPS55145438A (en) Transistor logic circuit
JPS5696531A (en) Ttl circuit of open collector
JPS56115036A (en) Interface circuit
JPS546760A (en) Logic circuit
JPS54114056A (en) Ternary logic circuit
JPS54966A (en) Logic circuit
JPS56117427A (en) Level converting circuit
JPS5384453A (en) High-speed current-voltage converter
JPS56123128A (en) Logic circuit
JPS55114037A (en) Output buffer circuit
JPS52137246A (en) Transistor transistor logic circuit
SU388364A1 (en) COMMUNICATION DEVICE
JPS566540A (en) Differential level shift circuit
JPS54125958A (en) Ttl circuit