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JPS5613827A - Set/reset flip-flop circuit - Google Patents

Set/reset flip-flop circuit

Info

Publication number
JPS5613827A
JPS5613827A JP8890479A JP8890479A JPS5613827A JP S5613827 A JPS5613827 A JP S5613827A JP 8890479 A JP8890479 A JP 8890479A JP 8890479 A JP8890479 A JP 8890479A JP S5613827 A JPS5613827 A JP S5613827A
Authority
JP
Japan
Prior art keywords
potential
reference voltage
voltage source
level
emitter
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
JP8890479A
Other languages
Japanese (ja)
Other versions
JPS62610B2 (en
Inventor
Takahisa Nishimura
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 JP8890479A priority Critical patent/JPS5613827A/en
Publication of JPS5613827A publication Critical patent/JPS5613827A/en
Publication of JPS62610B2 publication Critical patent/JPS62610B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To secure the steady threshold level as well as a large noise margin, by inserting the switching element in series between the FF basic circuit and the constant current source.
CONSTITUTION: Transistor TR14 which functions as the switching element is provided. The emitter and the base of TR14 are connected to constant current source 1 and the reference voltage source respectively. And the collector is connected to the emitter which is connected in common to TR2, 3 which form the FF basic circuit and hold the information. Then the threshold level is decided by the potential of the reference voltage source which is applied to the base of TR14 for the input signal to be applied to the bases of the 2nd TR pair 4 and 5 and for writing the information. Accordingly, this level can be fixed at a proper value. At the same time, the potential of the reference voltage source is set properly, for example, to the value lower enough than the potential that the collector of the transistor of the input side can hold. As a result, the TR can be operated in the nonsaturated region to secure the input signal level having an ample noise margin.
COPYRIGHT: (C)1981,JPO&Japio
JP8890479A 1979-07-13 1979-07-13 Set/reset flip-flop circuit Granted JPS5613827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8890479A JPS5613827A (en) 1979-07-13 1979-07-13 Set/reset flip-flop circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8890479A JPS5613827A (en) 1979-07-13 1979-07-13 Set/reset flip-flop circuit

Publications (2)

Publication Number Publication Date
JPS5613827A true JPS5613827A (en) 1981-02-10
JPS62610B2 JPS62610B2 (en) 1987-01-08

Family

ID=13955927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8890479A Granted JPS5613827A (en) 1979-07-13 1979-07-13 Set/reset flip-flop circuit

Country Status (1)

Country Link
JP (1) JPS5613827A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0486847U (en) * 1990-12-07 1992-07-28

Also Published As

Publication number Publication date
JPS62610B2 (en) 1987-01-08

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