JPS56165422A - Programmable divider - Google Patents

Programmable divider

Info

Publication number
JPS56165422A
JPS56165422A JP6936680A JP6936680A JPS56165422A JP S56165422 A JPS56165422 A JP S56165422A JP 6936680 A JP6936680 A JP 6936680A JP 6936680 A JP6936680 A JP 6936680A JP S56165422 A JPS56165422 A JP S56165422A
Authority
JP
Japan
Prior art keywords
gate
output
gates
terminal
frequency
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
JP6936680A
Other languages
Japanese (ja)
Other versions
JPS6242417B2 (en
Inventor
Hiroshi Mizuguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6936680A priority Critical patent/JPS56165422A/en
Publication of JPS56165422A publication Critical patent/JPS56165422A/en
Publication of JPS6242417B2 publication Critical patent/JPS6242417B2/ja
Granted 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
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
    • H03K23/662—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by adding or suppressing pulses

Landscapes

  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To realize not only power saving but suppression of lowering of the production yield which is caused by the threshold frequency, by obtaining a division output having nearly a double frequency to the normal division output without increasing the clock frequency. CONSTITUTION:The EX-OR gates 6, 8 and 10 have an input terminal each that is connected to the n-th bit (1<=n<M) output terminal and the (n+1)-th bit program terminal of a presetable counter 4 of the M stage. Such gates are prepared in (M-1) pieces, and the output terminals of these EX-OR gates are connected to the input terminal of an AND gate 14. At the same time, a double frequency pulse inserting means (NOR gate 13 and OR gate 15) are provided to insert the output signal of the gate 14 during a preset pulse section of the counter 4.
JP6936680A 1980-05-24 1980-05-24 Programmable divider Granted JPS56165422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6936680A JPS56165422A (en) 1980-05-24 1980-05-24 Programmable divider

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6936680A JPS56165422A (en) 1980-05-24 1980-05-24 Programmable divider

Publications (2)

Publication Number Publication Date
JPS56165422A true JPS56165422A (en) 1981-12-19
JPS6242417B2 JPS6242417B2 (en) 1987-09-08

Family

ID=13400479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6936680A Granted JPS56165422A (en) 1980-05-24 1980-05-24 Programmable divider

Country Status (1)

Country Link
JP (1) JPS56165422A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595749A (en) * 1982-06-30 1984-01-12 Fujitsu Ltd Clock generating circuit
JPS5917875A (en) * 1982-07-20 1984-01-30 Matsushita Electric Ind Co Ltd Programmable frequency generator for driving inverter with inductive load

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595749A (en) * 1982-06-30 1984-01-12 Fujitsu Ltd Clock generating circuit
JPS5917875A (en) * 1982-07-20 1984-01-30 Matsushita Electric Ind Co Ltd Programmable frequency generator for driving inverter with inductive load
JPH0153812B2 (en) * 1982-07-20 1989-11-15 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS6242417B2 (en) 1987-09-08

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