JPS5448475A - Programmable counter - Google Patents

Programmable counter

Info

Publication number
JPS5448475A
JPS5448475A JP11541977A JP11541977A JPS5448475A JP S5448475 A JPS5448475 A JP S5448475A JP 11541977 A JP11541977 A JP 11541977A JP 11541977 A JP11541977 A JP 11541977A JP S5448475 A JPS5448475 A JP S5448475A
Authority
JP
Japan
Prior art keywords
taken
output
input
circuit
nand circuit
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
JP11541977A
Other languages
Japanese (ja)
Other versions
JPS6053929B2 (en
Inventor
Nobuyuki Kamimaru
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 JP11541977A priority Critical patent/JPS6053929B2/en
Publication of JPS5448475A publication Critical patent/JPS5448475A/en
Publication of JPS6053929B2 publication Critical patent/JPS6053929B2/en
Expired 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
    • H03K23/665—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 presetting

Landscapes

  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To enable high speed operation without lowering the operation margin, even if the program data is different from the number of frequency division, by making selectable the detection value of preset condition with the number of bits of shift register. CONSTITUTION:The binary counters 11 to 19 with preset taking the output of prestage as the colck inut of the next stage are provided, the data to the program data terminals PD1 to PD7 is set from external, and the data to PD8 and PD9 are set internally. Further, the outputs of binary counter Q7, Q8, Q9 are taken as the input to the NAND circuit 11, Q4, Q5, Q6 are taken as the inpu of the circuit 12, and Q2, Q3 are taken as the input of the NAND circuit 13. Further, the output of the circuits 11 to 13 is taken as the circuit 14. This output and 1 are taken as the input of the NAND circuit 3, and the output is fed to the preset Pr terminal of the binary counter. With this constitution, a plurality of frequency divided signal can be obtainded, allowing to increase the operation margin and the performance of operation
JP11541977A 1977-09-26 1977-09-26 programmable counter Expired JPS6053929B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11541977A JPS6053929B2 (en) 1977-09-26 1977-09-26 programmable counter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11541977A JPS6053929B2 (en) 1977-09-26 1977-09-26 programmable counter

Publications (2)

Publication Number Publication Date
JPS5448475A true JPS5448475A (en) 1979-04-17
JPS6053929B2 JPS6053929B2 (en) 1985-11-28

Family

ID=14662095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11541977A Expired JPS6053929B2 (en) 1977-09-26 1977-09-26 programmable counter

Country Status (1)

Country Link
JP (1) JPS6053929B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128024A (en) * 1980-03-12 1981-10-07 Nec Corp Frequency divider
JPS5970320A (en) * 1982-10-15 1984-04-20 Matsushita Electric Ind Co Ltd Binary counter
JPS59122024A (en) * 1982-12-27 1984-07-14 Matsushita Electric Ind Co Ltd Programmable frequency divider

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128024A (en) * 1980-03-12 1981-10-07 Nec Corp Frequency divider
JPS6250006B2 (en) * 1980-03-12 1987-10-22 Nippon Electric Co
JPS5970320A (en) * 1982-10-15 1984-04-20 Matsushita Electric Ind Co Ltd Binary counter
JPH0156571B2 (en) * 1982-10-15 1989-11-30 Matsushita Electric Ind Co Ltd
JPS59122024A (en) * 1982-12-27 1984-07-14 Matsushita Electric Ind Co Ltd Programmable frequency divider
JPH0156573B2 (en) * 1982-12-27 1989-11-30 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS6053929B2 (en) 1985-11-28

Similar Documents

Publication Publication Date Title
GB1159040A (en) Digital Filter.
SE7708396L (en) FREQUENCY CALCULATOR
JPS5650439A (en) Binary multiplier cell circuit
GB1496935A (en) Adders and multipliers
GB1488944A (en) Circuit for eliminating contact bounce
ES357212A1 (en) Method of producing tones of an equally tempered scale
JPS5448475A (en) Programmable counter
GB1386503A (en) Digital shift apparatus
FR2282752B1 (en)
KR880014737A (en) Multi-Input Digital Filter
GB1277181A (en) Binary register system
JPS55143825A (en) Digital phase shifter
JPS56153839A (en) Pla logical operation circuit
ES467570A1 (en) Pulse width indicating circuit
JPS52140241A (en) Binary #-digit addition circuit
GB1006641A (en) Improvements in and relating to devices for determining statistic parameters of signals
JPS5713542A (en) Data speed transducer
JPS57121326A (en) Jhonson counter
JPS5769577A (en) Address circuit
JPS575149A (en) Digital circuit device
JPS54144848A (en) Digital filter
JPS6114692B2 (en)
JPS5441781A (en) Frequency discrimination circuit
JPS5797226A (en) Signal switching circuit
JPS57197638A (en) Input device