JPS5757032A - Semiconductor integrated circuit - Google Patents

Semiconductor integrated circuit

Info

Publication number
JPS5757032A
JPS5757032A JP56121352A JP12135281A JPS5757032A JP S5757032 A JPS5757032 A JP S5757032A JP 56121352 A JP56121352 A JP 56121352A JP 12135281 A JP12135281 A JP 12135281A JP S5757032 A JPS5757032 A JP S5757032A
Authority
JP
Japan
Prior art keywords
terminal
signal
circuit
input
inputted
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
JP56121352A
Other languages
Japanese (ja)
Other versions
JPH0315374B2 (en
Inventor
Hiroshi Iwahashi
Masamichi Asano
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 JP56121352A priority Critical patent/JPS5757032A/en
Publication of JPS5757032A publication Critical patent/JPS5757032A/en
Publication of JPH0315374B2 publication Critical patent/JPH0315374B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H03K19/094—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors
    • H03K19/09425—Multistate logic

Abstract

PURPOSE:To reduce the number of input terminals, to which a control signal is inputted, to improve the integration degree, by using one input terminal in common. CONSTITUTION:A select circuit 13 consists of a program circuit 17 and a control circuit 18, and the signal from a chip select terminal 19 is supplied to the select circuit 13. In the circuit 17, the terminal 19 is used for a signal for setting a program, and a program set voltage higher than the voltage of the chip selecting signal is given to the terminal 19 and other terminals 19a and 19b. Consequently, FETs 201 and 202 are set not to operate in the input level of the normal chip selecting signal. The chip selecting signal inputted to the terminal 19 is applied to an inverter 31. Detection levels for the logical level of the input signal in inverters 20 and 31 to which the signal supplied to the terminal 19 is inputted are made different from each other, thus using one terminal in common.
JP56121352A 1981-08-04 1981-08-04 Semiconductor integrated circuit Granted JPS5757032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56121352A JPS5757032A (en) 1981-08-04 1981-08-04 Semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56121352A JPS5757032A (en) 1981-08-04 1981-08-04 Semiconductor integrated circuit

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP4156880A Division JPS56137590A (en) 1980-03-31 1980-03-31 Semiconductor memory device

Publications (2)

Publication Number Publication Date
JPS5757032A true JPS5757032A (en) 1982-04-06
JPH0315374B2 JPH0315374B2 (en) 1991-02-28

Family

ID=14809146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56121352A Granted JPS5757032A (en) 1981-08-04 1981-08-04 Semiconductor integrated circuit

Country Status (1)

Country Link
JP (1) JPS5757032A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53128240A (en) * 1977-04-13 1978-11-09 Philips Nv Integrated circuit
JPS5526799A (en) * 1978-06-23 1980-02-26 Rca Corp Circuit having twoopurpose terminal
JPS5541093A (en) * 1978-09-14 1980-03-22 Itt Cmos circuit for conveting ternary signal to binary signal
JPS55132130A (en) * 1979-03-31 1980-10-14 Nippon Texas Instr Kk Tri-state input circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53128240A (en) * 1977-04-13 1978-11-09 Philips Nv Integrated circuit
JPS5526799A (en) * 1978-06-23 1980-02-26 Rca Corp Circuit having twoopurpose terminal
JPS5541093A (en) * 1978-09-14 1980-03-22 Itt Cmos circuit for conveting ternary signal to binary signal
JPS55132130A (en) * 1979-03-31 1980-10-14 Nippon Texas Instr Kk Tri-state input circuit

Also Published As

Publication number Publication date
JPH0315374B2 (en) 1991-02-28

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