JPS5764392A - Semiconductor integrated circuit - Google Patents

Semiconductor integrated circuit

Info

Publication number
JPS5764392A
JPS5764392A JP13947280A JP13947280A JPS5764392A JP S5764392 A JPS5764392 A JP S5764392A JP 13947280 A JP13947280 A JP 13947280A JP 13947280 A JP13947280 A JP 13947280A JP S5764392 A JPS5764392 A JP S5764392A
Authority
JP
Japan
Prior art keywords
circuit
potential
terminal
input
connection
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
JP13947280A
Other languages
Japanese (ja)
Inventor
Yukio Miyazaki
Mitsugi Takeda
Yoshiyuki Nakai
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13947280A priority Critical patent/JPS5764392A/en
Publication of JPS5764392A publication Critical patent/JPS5764392A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
    • G11C17/18—Auxiliary circuits, e.g. for writing into memory

Landscapes

  • Read Only Memory (AREA)
  • Logic Circuits (AREA)

Abstract

PURPOSE:To shorten a switching time, by constituting a circuit so that a comparator circuit for detecting connection or non-connection of a memory part, and a temperature characteristic of reference voltage of this circuit are made to correspond to a temperature characteristic of an input ''L'' signal, and also providing a circuit for clamping an input ''H'' signal. CONSTITUTION:The reference bias to be applied to a terminal 27b of a comparator circuit 27 for detecting connection or non-connection of a memory part of a fuse type bipolar PROM is almost equal to the ''L'' potential of an output signal of an internal output terminal 6, and its potential becomes high by decreasing or increasing values of resistances 28, 30 or a fuse 32. A DC noose margin is equal to the logical amplitude in an input of the circuit 27 which is required when an output terminal 5 is varied to the ''L'' potential from the ''H'' potential, by a difference between threshold voltage (=reference bias) of the circuit 27 and the ''L'' potential of an output of the terminal 6, and depends on the fuse 32, therefore, no temperature is changed. In case of the ''H'' potential of the terminal 6 at the time of a program, a clamping circuit 35 is turned on and off by a switch 36 in accordance with writing circuits 25, 37.
JP13947280A 1980-10-03 1980-10-03 Semiconductor integrated circuit Pending JPS5764392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13947280A JPS5764392A (en) 1980-10-03 1980-10-03 Semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13947280A JPS5764392A (en) 1980-10-03 1980-10-03 Semiconductor integrated circuit

Publications (1)

Publication Number Publication Date
JPS5764392A true JPS5764392A (en) 1982-04-19

Family

ID=15246032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13947280A Pending JPS5764392A (en) 1980-10-03 1980-10-03 Semiconductor integrated circuit

Country Status (1)

Country Link
JP (1) JPS5764392A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922296A (en) * 1982-07-12 1984-02-04 ロツクウエル・インタ−ナシヨナル・コ−ポレ−シヨン Tracking rom driving and detecting circuit
JPS60201598A (en) * 1984-03-23 1985-10-12 Fujitsu Ltd Semiconductor integrated circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922296A (en) * 1982-07-12 1984-02-04 ロツクウエル・インタ−ナシヨナル・コ−ポレ−シヨン Tracking rom driving and detecting circuit
JPS60201598A (en) * 1984-03-23 1985-10-12 Fujitsu Ltd Semiconductor integrated circuit

Similar Documents

Publication Publication Date Title
US4228366A (en) Integrator circuit with limiter
KR860007783A (en) Comparator Circuit with Improved Output Characteristics
US3809926A (en) Window detector circuit
KR910019320A (en) 3-terminal operational amplifier
KR890001268A (en) Relaxation oscillator
DE3584421D1 (en) EMITTER COUPLED LOGICAL CIRCUITS.
JPS57104325A (en) Ecl circuit
US3996480A (en) Sample and hold-circuit arrangement for an electrical motor simulator of an electronic motor protection relay
KR840003165A (en) Control circuit for gate diode switch
KR880004398A (en) Comparison circuit
JPS573431A (en) Complementary mos logical circuit
SU845285A1 (en) Transistorized switch
KR900009628Y1 (en) Audio Amplifier Protection Circuit
GB906741A (en) Improvements in or relating to transistor current switches
KR890001435B1 (en) Protection circuit of power switching transistor
JPS5717207A (en) Amplifying circuit
SU849502A1 (en) Matching device
JPS5478964A (en) Selection circuit
JPS561769A (en) Constant current circuit
JPS5793722A (en) Integrated circuit
JPS5799823A (en) Transistor circuit
GB963159A (en) Improvements in and relating to electronic trigger circuit arrangements employing transistors
JPS5541020A (en) Logic output circuit
JPS57137875A (en) Terminal circuit
JPS5482128A (en) Input circuit