JPH04352512A - Schmitt trigger circuit - Google Patents

Schmitt trigger circuit

Info

Publication number
JPH04352512A
JPH04352512A JP15580791A JP15580791A JPH04352512A JP H04352512 A JPH04352512 A JP H04352512A JP 15580791 A JP15580791 A JP 15580791A JP 15580791 A JP15580791 A JP 15580791A JP H04352512 A JPH04352512 A JP H04352512A
Authority
JP
Japan
Prior art keywords
trigger circuit
schmitt trigger
transistors
input
executed
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
JP15580791A
Other languages
Japanese (ja)
Inventor
Masaharu Nagashima
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP15580791A priority Critical patent/JPH04352512A/en
Publication of JPH04352512A publication Critical patent/JPH04352512A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the Schmitt trigger circuit which can change an input voltage based on control signals,
CONSTITUTION: Transistors P14, P16, N14 and N16, are respectively parallelly connected to transistors P13, P15, N13 and N15. The gate input of a control signal C1 is executed to the transistors P16 and N16. The gate input of a control signal C2 is executed to the transistors P14 and N14. Therefore, since the upper threshold voltage and lower threshold voltage of an input signal IN can be controlled based on the control signals C1 and C2, the input voltage of the Schmitt trigger circuit can be changed.
COPYRIGHT: (C)1992,JPO&Japio
JP15580791A 1991-05-29 1991-05-29 Schmitt trigger circuit Pending JPH04352512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15580791A JPH04352512A (en) 1991-05-29 1991-05-29 Schmitt trigger circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15580791A JPH04352512A (en) 1991-05-29 1991-05-29 Schmitt trigger circuit

Publications (1)

Publication Number Publication Date
JPH04352512A true JPH04352512A (en) 1992-12-07

Family

ID=15613889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15580791A Pending JPH04352512A (en) 1991-05-29 1991-05-29 Schmitt trigger circuit

Country Status (1)

Country Link
JP (1) JPH04352512A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5874844A (en) * 1997-03-20 1999-02-23 Lg Semicon Co., Ltd. Schmitt trigger circuit with an adjustable trigger voltage
JP2004282349A (en) * 2003-03-14 2004-10-07 Seiko Epson Corp Schmidt trigger circuit, semiconductor device, and method of manufacturing schmidt trigger circuit
KR100548530B1 (en) * 1999-12-15 2006-02-02 매그나칩 반도체 유한회사 Schmitt trigger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5874844A (en) * 1997-03-20 1999-02-23 Lg Semicon Co., Ltd. Schmitt trigger circuit with an adjustable trigger voltage
KR100548530B1 (en) * 1999-12-15 2006-02-02 매그나칩 반도체 유한회사 Schmitt trigger
JP2004282349A (en) * 2003-03-14 2004-10-07 Seiko Epson Corp Schmidt trigger circuit, semiconductor device, and method of manufacturing schmidt trigger circuit

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