JPS55105438A - Logic array - Google Patents

Logic array

Info

Publication number
JPS55105438A
JPS55105438A JP1294979A JP1294979A JPS55105438A JP S55105438 A JPS55105438 A JP S55105438A JP 1294979 A JP1294979 A JP 1294979A JP 1294979 A JP1294979 A JP 1294979A JP S55105438 A JPS55105438 A JP S55105438A
Authority
JP
Japan
Prior art keywords
array
decoder
potential
diode
level
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
Application number
JP1294979A
Other languages
Japanese (ja)
Inventor
Akira Aso
Hiromichi Kimura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1294979A priority Critical patent/JPS55105438A/en
Publication of JPS55105438A publication Critical patent/JPS55105438A/en
Pending 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
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17704—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns
    • H03K19/17708—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns using an AND matrix followed by an OR matrix, i.e. programmable logic arrays

Landscapes

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

Abstract

PURPOSE:To increase the using allowance range for the AND array by using the transistor circuit containing the constant current source to be connected to the emitter coupling for the means which transmits the output signal of the decoder circuit to the AND array. CONSTITUTION:When output level Zn and Zn' of the decoder become to the high levels along with points a-f reaching the higher potential than reference voltage VRR, corresponding transistors Q1-Qn are turned on. And furthermore corresponding bit lines of 1-n turn to the low levels respectively. The low-level potential of the bit line then is identical to potential Vn-VDn+VF which is clamped by Di, where Vn is the constant voltage due to the constant current gate of the decoder, and VF is the forward bias voltage of the diode in the array each. The clamping effect of diode Di prevents the current flowing through transistor Qn from becoming excessive and thus keeps the bit line at the normal level. In addition, the array current is increased by the clamping effect, thus increasing the speed.
JP1294979A 1979-02-07 1979-02-07 Logic array Pending JPS55105438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1294979A JPS55105438A (en) 1979-02-07 1979-02-07 Logic array

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1294979A JPS55105438A (en) 1979-02-07 1979-02-07 Logic array

Publications (1)

Publication Number Publication Date
JPS55105438A true JPS55105438A (en) 1980-08-13

Family

ID=11819523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1294979A Pending JPS55105438A (en) 1979-02-07 1979-02-07 Logic array

Country Status (1)

Country Link
JP (1) JPS55105438A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132244A (en) * 1982-10-25 1984-07-30 バロ−ス・コ−ポレ−ション Logic array
JPS6258723A (en) * 1985-05-07 1987-03-14 フエアチヤイルド　セミコンダクタ　コ−ポレ−シヨン Depseudo signal circuit for digital logical circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54111747A (en) * 1978-02-22 1979-09-01 Nec Corp Drive circuit for matrix

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54111747A (en) * 1978-02-22 1979-09-01 Nec Corp Drive circuit for matrix

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132244A (en) * 1982-10-25 1984-07-30 バロ−ス・コ−ポレ−ション Logic array
JPS6258723A (en) * 1985-05-07 1987-03-14 フエアチヤイルド　セミコンダクタ　コ−ポレ−シヨン Depseudo signal circuit for digital logical circuit

Similar Documents

Publication Publication Date Title
EP0082567A3 (en) Ttl to cmos input buffer
US4920284A (en) CMOS level converter circuit with reduced power consumption
EP0360333A3 (en) Temperature threshold sensing circuit
KR880001113A (en) ECL Gate with Switchable Load Impedance
JPS6462016A (en) Output buffer circuit
KR930009268A (en) High-Speed, Low-Power, Voltage-Mode Differential Driver Circuit
GB1491059A (en) Voltage level conversion circuit
WO1987003435A1 (en) Cmos to ecl interface circuit
CA2035496A1 (en) Semiconductor relay circuit using photovoltaic diodes
JPS5384578A (en) Semiconductor integrated circuit
EP0157047A3 (en) Method of and driver circuit for controlling a laser diode
JPS55105438A (en) Logic array
JPS57162838A (en) Emitter coupling type logical circuit
US4857766A (en) BiMos input circuit
JPS6453611A (en) Driver circuit
EP0285068A3 (en) Logic circuit
JPS56164631A (en) Signal line precharging circuit
JPS5725726A (en) Synchronous decoder
JPS55133133A (en) Malfunction prevention circuit for digital logic unit
JPS5793573A (en) Mis semiconductor device
SU622199A1 (en) Strobed shaper
JPS57113270A (en) Integrated circuit
SU1095372A1 (en) Device for forming standard digital signals
SU1501299A1 (en) Telegraph single-polarity to double-polarity signal converter
SU1251318A1 (en) Emitter-collector-link element