JPS5752943A - Decoder - Google Patents

Decoder

Info

Publication number
JPS5752943A
JPS5752943A JP55126898A JP12689880A JPS5752943A JP S5752943 A JPS5752943 A JP S5752943A JP 55126898 A JP55126898 A JP 55126898A JP 12689880 A JP12689880 A JP 12689880A JP S5752943 A JPS5752943 A JP S5752943A
Authority
JP
Japan
Prior art keywords
logic
bits
signals
decoders
input
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
JP55126898A
Other languages
Japanese (ja)
Other versions
JPS636171B2 (en
Inventor
Yasutaka Nagae
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55126898A priority Critical patent/JPS5752943A/en
Publication of JPS5752943A publication Critical patent/JPS5752943A/en
Publication of JPS636171B2 publication Critical patent/JPS636171B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/001—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits characterised by the elements used
    • H03M7/005—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits characterised by the elements used using semiconductor devices

Abstract

PURPOSE:To contrive improvement of integrity, by decoding higher and lower bits of input signals with NAND circuits and by performing decoding of input signal patterns by selecting either the enhancement type MOS or depression type MOS. CONSTITUTION:This decoder is configured in such ways that the higher and lower four bits of an input signal of eight bits are decoded into inversion signals and non- inversion signals by one bit decoders 301 and 401, and transistor groups 302 and 402 composed of enhancement type MOSs E and depression type MOSs D are selectively turned on by the decoded signals. Therefore, the signal Hi which is the output of higher decoders 30 is input into the gate of a transistor 405 of lower decoders 40 after the logic ''0'' of an output line 304 is activated into a logic ''1'' by an invertor 306, and a decode signal Sj is obtained by activating the logic ''0'' of another output line 404 obtained together with the ON condition of the transistor group 402 into a logic ''1'' through another invertor 407.
JP55126898A 1980-09-12 1980-09-12 Decoder Granted JPS5752943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55126898A JPS5752943A (en) 1980-09-12 1980-09-12 Decoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55126898A JPS5752943A (en) 1980-09-12 1980-09-12 Decoder

Publications (2)

Publication Number Publication Date
JPS5752943A true JPS5752943A (en) 1982-03-29
JPS636171B2 JPS636171B2 (en) 1988-02-08

Family

ID=14946601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55126898A Granted JPS5752943A (en) 1980-09-12 1980-09-12 Decoder

Country Status (1)

Country Link
JP (1) JPS5752943A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230388A (en) * 1975-09-04 1977-03-08 Hitachi Ltd Semiconductor integrated circuit device constructed with insulating ga te field effect transistor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230388A (en) * 1975-09-04 1977-03-08 Hitachi Ltd Semiconductor integrated circuit device constructed with insulating ga te field effect transistor

Also Published As

Publication number Publication date
JPS636171B2 (en) 1988-02-08

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