JPH02285811A - Semiconductor integrated circuit - Google Patents

Semiconductor integrated circuit

Info

Publication number
JPH02285811A
JPH02285811A JP1108583A JP10858389A JPH02285811A JP H02285811 A JPH02285811 A JP H02285811A JP 1108583 A JP1108583 A JP 1108583A JP 10858389 A JP10858389 A JP 10858389A JP H02285811 A JPH02285811 A JP H02285811A
Authority
JP
Japan
Prior art keywords
power supply
input
switch
output
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.)
Pending
Application number
JP1108583A
Other languages
Japanese (ja)
Inventor
Takashi Kimura
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP1108583A priority Critical patent/JPH02285811A/en
Publication of JPH02285811A publication Critical patent/JPH02285811A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the cost of the entire device by providing two different power input means and a changeover means in a semiconductor integrated circuit having plural input and output means and connecting an IC with two different power voltage ranges directly to the power supplies without provision of a voltage conversion IC.
CONSTITUTION: A switch 16 selects either a 3V power supply or a 5V power supply with a means such as mask changeover. A logic circuit 15 in the inside of an input circuit is driven by the 3V power supply and the switch 16 is connected to a 5V power supply input port 12 to be able to input a 5V data from the input port 13. A switch 26 selects either the 3V power supply or the 5V power supply with a means such as mask changeover. A logic circuit 25 in the inside of an output circuit is driven by the 3V power supply and the switch 26 is thrown to a 5V power supply input port 22 to output a 5V data from an output port 23.
COPYRIGHT: (C)1990,JPO&Japio
JP1108583A 1989-04-27 1989-04-27 Semiconductor integrated circuit Pending JPH02285811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1108583A JPH02285811A (en) 1989-04-27 1989-04-27 Semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1108583A JPH02285811A (en) 1989-04-27 1989-04-27 Semiconductor integrated circuit

Publications (1)

Publication Number Publication Date
JPH02285811A true JPH02285811A (en) 1990-11-26

Family

ID=14488490

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1108583A Pending JPH02285811A (en) 1989-04-27 1989-04-27 Semiconductor integrated circuit

Country Status (1)

Country Link
JP (1) JPH02285811A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05120861A (en) * 1991-10-25 1993-05-18 Matsushita Electric Ind Co Ltd Memory card system
JPH05144252A (en) * 1991-11-22 1993-06-11 Mitsubishi Electric Corp Memory ic
JPH05145071A (en) * 1991-09-30 1993-06-11 Fujitsu Ltd Mis field-effect semiconductor device and manufacture thereof
KR980010693A (en) * 1996-07-01 1998-04-30
EP0884848A1 (en) * 1997-06-10 1998-12-16 Siemens Aktiengesellschaft Circuit for producing digital signals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05145071A (en) * 1991-09-30 1993-06-11 Fujitsu Ltd Mis field-effect semiconductor device and manufacture thereof
JPH05120861A (en) * 1991-10-25 1993-05-18 Matsushita Electric Ind Co Ltd Memory card system
JPH05144252A (en) * 1991-11-22 1993-06-11 Mitsubishi Electric Corp Memory ic
KR980010693A (en) * 1996-07-01 1998-04-30
EP0884848A1 (en) * 1997-06-10 1998-12-16 Siemens Aktiengesellschaft Circuit for producing digital signals

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