Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
  • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
  • C07D403/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D255/00—Heterocyclic compounds containing rings having three nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D249/00 - C07D253/00
  • C07D255/02—Heterocyclic compounds containing rings having three nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D249/00 - C07D253/00 not condensed with other rings
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D257/00—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms
  • C07D257/02—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms not condensed with other rings
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D259/00—Heterocyclic compounds containing rings having more than four nitrogen atoms as the only ring hetero atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
  • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
  • C07D487/08—Bridged systems
• • 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
  • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
  • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
  • H03K19/094—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors
  • H03K19/09432—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors with coupled sources or source coupled logic
  • H03K19/09436—Source coupled field-effect logic [SCFL]
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
  • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
  • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
  • H03K3/356—Bistable circuits
  • H03K3/3565—Bistables with hysteresis, e.g. Schmitt trigger

Applications Claiming Priority (1)

Publications (4)

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ID=23110317

Family Applications (1)

Country Status (19)

Families Citing this family (16)

Family Cites Families (5)

• 1989
  • 1989-12-15 WO PCT/US1989/005784 patent/WO1990007261A2/en unknown
  • 1989-12-15 BR BR898907277A patent/BR8907277A/pt not_active IP Right Cessation
  • 1989-12-15 JP JP2502255A patent/JP2930709B2/ja not_active Expired - Lifetime
  • 1989-12-20 PT PT92638A patent/PT92638B/pt active IP Right Grant
  • 1989-12-21 IL IL9284489A patent/IL92844A/en not_active IP Right Cessation
  • 1989-12-21 CA CA002006358A patent/CA2006358C/en not_active Expired - Fee Related
  • 1989-12-21 ES ES89123685T patent/ES2113846T3/es not_active Expired - Lifetime
  • 1989-12-21 KR KR1019890019142A patent/KR0160113B1/ko not_active IP Right Cessation
  • 1989-12-21 FI FI896171A patent/FI104171B/fi not_active IP Right Cessation
  • 1989-12-21 EP EP89123685A patent/EP0374929B1/en not_active Expired - Lifetime
  • 1989-12-21 CN CN89109817A patent/CN1028172C/zh not_active Expired - Lifetime
  • 1989-12-21 SG SG1996004825A patent/SG47867A1/en unknown
  • 1989-12-21 HU HU896728A patent/HU208317B/hu not_active IP Right Cessation
  • 1989-12-21 NO NO895176A patent/NO177496C/no unknown
  • 1989-12-21 DE DE68928619T patent/DE68928619T2/de not_active Expired - Lifetime
  • 1989-12-22 DK DK198906654A patent/DK175509B1/da not_active IP Right Cessation
• 1990
  • 1990-02-28 PH PH40028A patent/PH30234A/en unknown
• 1998
  • 1998-04-28 GR GR980400938T patent/GR3026745T3/el unknown
  • 1998-07-14 HK HK98109129A patent/HK1008425A1/xx not_active IP Right Cessation

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