JPS57121326A - Jhonson counter - Google Patents

Jhonson counter

Info

Publication number
JPS57121326A
JPS57121326A JP667281A JP667281A JPS57121326A JP S57121326 A JPS57121326 A JP S57121326A JP 667281 A JP667281 A JP 667281A JP 667281 A JP667281 A JP 667281A JP S57121326 A JPS57121326 A JP S57121326A
Authority
JP
Japan
Prior art keywords
stage
ffs
following stages
output
speed operation
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
JP667281A
Other languages
Japanese (ja)
Inventor
Masayuki Kawasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP667281A priority Critical patent/JPS57121326A/en
Publication of JPS57121326A publication Critical patent/JPS57121326A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H03K23/54—Ring counters, i.e. feedback shift register counters
    • H03K23/542—Ring counters, i.e. feedback shift register counters with crossed-couplings, i.e. Johnson counters

Landscapes

  • Shift Register Type Memory (AREA)

Abstract

PURPOSE:To make a high-speed operation possible, by connecting the output of an FF in the last stage of a shift register to the input of an FF in the first register and by setting the FF in the first stage and FFs in the second and following stages to states different from each other. CONSTITUTION:Four D (depletion) type FFs 11-14 are cascaded to constitute a shift register, and an output terminal Q of the FF14 in the last stage is connected to an input terminal D of the FF11 in the first stage. A clear signal is applied from a clear signal generating circuit 15 to a reset terminal S of the FF11 in the first stage and respective reset terminals of FFs 12-14 in the second and following stages to set the FF11 in the first stage and FF2 12-14 in the second and following stages to states different from each other. Clock pulses are applied to FFs 11-14, and the state of respective FFs is circulated. Consequently, since the output of each FF is inputted to the FF in the next stage directly, a high- speed operation is possible.
JP667281A 1981-01-20 1981-01-20 Jhonson counter Pending JPS57121326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP667281A JPS57121326A (en) 1981-01-20 1981-01-20 Jhonson counter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP667281A JPS57121326A (en) 1981-01-20 1981-01-20 Jhonson counter

Publications (1)

Publication Number Publication Date
JPS57121326A true JPS57121326A (en) 1982-07-28

Family

ID=11644855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP667281A Pending JPS57121326A (en) 1981-01-20 1981-01-20 Jhonson counter

Country Status (1)

Country Link
JP (1) JPS57121326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0638761U (en) * 1992-11-12 1994-05-24 折谷 元征 Hangers for clothing and personal items

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0638761U (en) * 1992-11-12 1994-05-24 折谷 元征 Hangers for clothing and personal items

Similar Documents

Publication Publication Date Title
JPS577634A (en) Frequency dividing circuit
NO880631L (en) PREDICTING TERMINAL COUNTERS.
JPS57121326A (en) Jhonson counter
DE3675050D1 (en) SIGNAL SELECTION CIRCUIT.
JPS5534572A (en) Counting circuit
JPS5698030A (en) Odd dividing circuit
JPS57190420A (en) Serial-parallel converting circuit
JPS55143825A (en) Digital phase shifter
JPS523353A (en) Integrated logic circuit
JPS54120541A (en) Input circuit of shift register
JPS5630316A (en) Cyclic filter
JPS5685127A (en) Digital signal processor
JPS5572261A (en) Logic unit
SU869060A1 (en) Pulse frequency divider
SU1522396A1 (en) Variable frequency divider
JPS57178543A (en) Digital comparator
JPS5679532A (en) Logic circuit
JPS567520A (en) Chattering rejection circuit
JPS5765047A (en) Split phase type data generating system
JPS57152733A (en) Frequency dividing circuit
JPS5679534A (en) Initial set system
JPS5727333A (en) Semiconductor integrated circuit
JPS568924A (en) Synchronous type universal counter
JPS57109045A (en) Data transfer speed converting circuit
JPS57118425A (en) Digital pattern generating circuit