JPS62123827A - Output circuit in semiconductor integrated circuit - Google Patents

Output circuit in semiconductor integrated circuit

Info

Publication number
JPS62123827A
JPS62123827A JP26242785A JP26242785A JPS62123827A JP S62123827 A JPS62123827 A JP S62123827A JP 26242785 A JP26242785 A JP 26242785A JP 26242785 A JP26242785 A JP 26242785A JP S62123827 A JPS62123827 A JP S62123827A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
switch
output buffer
signal
inverse
driving
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
JP26242785A
Inventor
Shinichi Ikeda
Yoshito Suzuki
Original Assignee
Hitachi 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

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K19/00Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/003Modifications for increasing the reliability for protection
    • H03K19/00346Modifications for eliminating interference or parasitic voltages or currents
    • H03K19/00361Modifications for eliminating interference or parasitic voltages or currents in field effect transistor circuits

Abstract

PURPOSE:To reduce noise on a ground line by connecting a couple of switch MOSFETs smaller in size than that of each component constituting an output buffer is parallel with each component, and driving the said switch MOSFETs before the drive of the output buffer so as to flow a current gradually to a load. CONSTITUTION:The output terminal of the output buffer 1 is connected in parallel with the output terminal of the switch comprising MOSFETs M1-M4. A signal TSCE driving a switch 10 is supplied before the inverse of signal TSC driving the output buffer 1 is supplies so as to switch the switch 10 by using the same signal being the inverse of signal IN fed to the output buffer 1. Since the size of each component of the switch 10 is constituted small sufficiently, the current is small. Thus, after a load CL is charged or discharged, the inverse of signal TSC is fed to the output buffer 1 to get a driven state. Thus, pulse noise is reduced.
JP26242785A 1985-11-25 1985-11-25 Output circuit in semiconductor integrated circuit Pending JPS62123827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26242785A JPS62123827A (en) 1985-11-25 1985-11-25 Output circuit in semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26242785A JPS62123827A (en) 1985-11-25 1985-11-25 Output circuit in semiconductor integrated circuit

Publications (1)

Publication Number Publication Date
JPS62123827A true true JPS62123827A (en) 1987-06-05

Family

ID=17375631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26242785A Pending JPS62123827A (en) 1985-11-25 1985-11-25 Output circuit in semiconductor integrated circuit

Country Status (1)

Country Link
JP (1) JPS62123827A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0315473A2 (en) * 1987-11-05 1989-05-10 Texas Instruments Incorporated Output buffer having programmable drive current
JPH0338912A (en) * 1989-07-05 1991-02-20 Mitsubishi Electric Corp Output circuit
US5055713A (en) * 1988-11-21 1991-10-08 Kabushiki Kaisha Toshiba Output circuit of semiconductor integrated circuit
US6043683A (en) * 1996-12-30 2000-03-28 Lg Semicon Co., Ltd. Output pad circuit using control signal
US7282961B1 (en) 2006-04-13 2007-10-16 International Business Machines Corporation Apparatus for hysteresis based process compensation for CMOS receiver circuits

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0315473A2 (en) * 1987-11-05 1989-05-10 Texas Instruments Incorporated Output buffer having programmable drive current
EP0315473A3 (en) * 1987-11-05 1989-12-06 Texas Instruments Incorporated Output buffer having programmable drive current
US5055713A (en) * 1988-11-21 1991-10-08 Kabushiki Kaisha Toshiba Output circuit of semiconductor integrated circuit
JPH0338912A (en) * 1989-07-05 1991-02-20 Mitsubishi Electric Corp Output circuit
US6043683A (en) * 1996-12-30 2000-03-28 Lg Semicon Co., Ltd. Output pad circuit using control signal
US7282961B1 (en) 2006-04-13 2007-10-16 International Business Machines Corporation Apparatus for hysteresis based process compensation for CMOS receiver circuits

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