GB1483028A - Frequency divider circuit - Google Patents

Frequency divider circuit

Info

Publication number
GB1483028A
GB1483028A GB4742975A GB4742975A GB1483028A GB 1483028 A GB1483028 A GB 1483028A GB 4742975 A GB4742975 A GB 4742975A GB 4742975 A GB4742975 A GB 4742975A GB 1483028 A GB1483028 A GB 1483028A
Authority
GB
United Kingdom
Prior art keywords
master
frequency divider
circuit
divider circuit
flops
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
Application number
GB4742975A
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of GB1483028A publication Critical patent/GB1483028A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
    • H03K3/288—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable using additional transistors in the input circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/40—Gating or clocking signals applied to all stages, i.e. synchronous counters
    • H03K23/50—Gating or clocking signals applied to all stages, i.e. synchronous counters using bi-stable regenerative trigger circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Bipolar Integrated Circuits (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

1483028 Master-slave flip-flops ITT INDUSTRIES Inc 18 Nov 1975 [21 Nov 1974] 47429/75 Heading H3T [Also in Division G4] In a frequency divider circuit comprising master and slave flip-flops 5, 5<SP>1</SP> and 6, 6<SP>1</SP> respectively, the Q, Q signals are fed back through inverters 4, 4<SP>1</SP> to control gates 2, 3; 2<SP>1</SP>, 3<SP>1</SP> which steer the input pulses applied at C to the appropriate one of the master flip-flop inputs R, S, to change its state. The circuit cannot oscillate because all the inverter rings in the circuit have an even number of inverter stages.
GB4742975A 1974-11-21 1975-11-18 Frequency divider circuit Expired GB1483028A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742455125 DE2455125C2 (en) 1974-11-21 1974-11-21 Frequency divider stage

Publications (1)

Publication Number Publication Date
GB1483028A true GB1483028A (en) 1977-08-17

Family

ID=5931393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4742975A Expired GB1483028A (en) 1974-11-21 1975-11-18 Frequency divider circuit

Country Status (4)

Country Link
DE (1) DE2455125C2 (en)
FR (1) FR2292384A1 (en)
GB (1) GB1483028A (en)
IT (1) IT1048690B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2399711A1 (en) * 1977-08-02 1979-03-02 Texas Instruments Inc DIRECT ACCESS MEMORY CELL
DE10038905A1 (en) * 2000-08-09 2002-03-14 Atmel Germany Gmbh Method for increasing the cutoff frequency in flip-flops

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847092B2 (en) * 1976-12-14 1983-10-20 株式会社東芝 logic circuit
JPS5570133A (en) * 1978-11-21 1980-05-27 Toshiba Corp Divider circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3728561A (en) * 1971-02-02 1973-04-17 Motorola Inc High speed master-slave flip-flop frequency divider

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2399711A1 (en) * 1977-08-02 1979-03-02 Texas Instruments Inc DIRECT ACCESS MEMORY CELL
DE10038905A1 (en) * 2000-08-09 2002-03-14 Atmel Germany Gmbh Method for increasing the cutoff frequency in flip-flops
US6486720B2 (en) 2000-08-09 2002-11-26 Atmel Germany Gmbh Flip-flop circuit arrangement with increased cut-off frequency
DE10038905C2 (en) * 2000-08-09 2003-04-17 Atmel Germany Gmbh Method for increasing the cutoff frequency in flip-flops

Also Published As

Publication number Publication date
FR2292384B1 (en) 1980-05-23
DE2455125A1 (en) 1976-05-26
DE2455125C2 (en) 1982-05-19
IT1048690B (en) 1980-12-20
FR2292384A1 (en) 1976-06-18

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee