JPS57210729A - Logical integrated circuit - Google Patents

Logical integrated circuit

Info

Publication number
JPS57210729A
JPS57210729A JP56095355A JP9535581A JPS57210729A JP S57210729 A JPS57210729 A JP S57210729A JP 56095355 A JP56095355 A JP 56095355A JP 9535581 A JP9535581 A JP 9535581A JP S57210729 A JPS57210729 A JP S57210729A
Authority
JP
Japan
Prior art keywords
circuit
buffers
terminals
output
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.)
Pending
Application number
JP56095355A
Other languages
Japanese (ja)
Inventor
Yoshikazu Takahashi
Makoto Takechi
Shingo Murata
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.)
Hitachi Microcomputer System Ltd
Hitachi Ltd
Original Assignee
Hitachi Ltd
Hitachi Microcomputer Engineering 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 Hitachi Ltd, Hitachi Microcomputer Engineering Ltd filed Critical Hitachi Ltd
Priority to JP56095355A priority Critical patent/JPS57210729A/en
Publication of JPS57210729A publication Critical patent/JPS57210729A/en
Pending 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

Abstract

PURPOSE:To perform stable operation even if an output circuit charges or discharges a lot of external capacitors, by independently providing a power supply system energizing an input circuit and an internal circuit and a power supply system energizing an output circuit, in an MOS logical integrated circuit. CONSTITUTION:A CMOS integrated circuit is formed on a single semiconductor chip 10 and has input buffers 12-1-12-m, an internal circuit 14, and output buffers 16-1-16-n. The buffers 12-1-m are connected to input terminals 20-1-m and the output is connected to the circuit 14. The buffers 16-1-n are connected to the circuit 14 and the output is connected to terminals 28-1-n. A battery Vdd1 is connected to the buffers 16-1-n via a power terminal 32 and the other terminals are connected to a ground terminal 36. A power supply VDD2 is connected to the buffers 12-1-m and the circuit 14 and the other terminals are connected to a ground terminal 46. Thus, even if the potential at the terminals 32 and 36 is fluctuated with charge/discharge of external capacitors C1-Cn, no fluctuation is given to the threshold value receiving the input signal of the buffers 12-1-n.
JP56095355A 1981-06-22 1981-06-22 Logical integrated circuit Pending JPS57210729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56095355A JPS57210729A (en) 1981-06-22 1981-06-22 Logical integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56095355A JPS57210729A (en) 1981-06-22 1981-06-22 Logical integrated circuit

Publications (1)

Publication Number Publication Date
JPS57210729A true JPS57210729A (en) 1982-12-24

Family

ID=14135338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56095355A Pending JPS57210729A (en) 1981-06-22 1981-06-22 Logical integrated circuit

Country Status (1)

Country Link
JP (1) JPS57210729A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102022A (en) * 1983-11-09 1985-06-06 Nec Ic Microcomput Syst Ltd Semiconductor integrated circuit device
JPS60153032U (en) * 1984-03-22 1985-10-12 日本電気アイシ−マイコンシステム株式会社 integrated circuit device
JPS61123216A (en) * 1984-11-19 1986-06-11 Toshiba Corp Semiconductor integrated circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102022A (en) * 1983-11-09 1985-06-06 Nec Ic Microcomput Syst Ltd Semiconductor integrated circuit device
JPS60153032U (en) * 1984-03-22 1985-10-12 日本電気アイシ−マイコンシステム株式会社 integrated circuit device
JPS61123216A (en) * 1984-11-19 1986-06-11 Toshiba Corp Semiconductor integrated circuit

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