JPS648714A - Initial value setting circuit - Google Patents
Initial value setting circuitInfo
- Publication number
- JPS648714A JPS648714A JP62164525A JP16452587A JPS648714A JP S648714 A JPS648714 A JP S648714A JP 62164525 A JP62164525 A JP 62164525A JP 16452587 A JP16452587 A JP 16452587A JP S648714 A JPS648714 A JP S648714A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- setting circuit
- output terminal
- circuit
- initial value
- 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
Links
Abstract
PURPOSE:To make the circuit operation stable by using a substrate potential of a P-channel MOS transistor(TR) as a power supply voltage and connecting a capacitor between a drain or source of the TR and a ground or negative power voltage terminal so as to prevent malfunction caused by the turning off of an internal TR due to a level of the initial setting value over a long period. CONSTITUTION:An initial setting circuit 14 is connected to an RS type FF via an OR circuit 13. A set terminal 3, a reset terminal 4, an output terminal 5 and an inverting output terminal 6 of the RS-FF are provided to RS-FFs 1, 2. Moreover, an input terminal 10 for a signal to reset the initial setting is connected to the initial value setting circuit 14, a P-channel MOS TR 14a is connected between a terminal 10 of the initial value setting circuit 14 and its output terminal 11 and a capacitor 14b is connected between the output terminal 11 and a ground terminal. Then the malfunction caused by a level of the input terminal 10 to turn off the TR 14a for a long period is prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62164525A JPS648714A (en) | 1987-07-01 | 1987-07-01 | Initial value setting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62164525A JPS648714A (en) | 1987-07-01 | 1987-07-01 | Initial value setting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648714A true JPS648714A (en) | 1989-01-12 |
Family
ID=15794822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62164525A Pending JPS648714A (en) | 1987-07-01 | 1987-07-01 | Initial value setting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648714A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0320490A (en) * | 1989-06-16 | 1991-01-29 | Asahi Glass Co Ltd | Production of alkali hydroxide |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5639620A (en) * | 1979-09-07 | 1981-04-15 | Sanyo Electric Co Ltd | Flip-flop circuit |
JPS60111520A (en) * | 1983-11-21 | 1985-06-18 | Ricoh Co Ltd | Unbalancing type latch circuit |
-
1987
- 1987-07-01 JP JP62164525A patent/JPS648714A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5639620A (en) * | 1979-09-07 | 1981-04-15 | Sanyo Electric Co Ltd | Flip-flop circuit |
JPS60111520A (en) * | 1983-11-21 | 1985-06-18 | Ricoh Co Ltd | Unbalancing type latch circuit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0320490A (en) * | 1989-06-16 | 1991-01-29 | Asahi Glass Co Ltd | Production of alkali hydroxide |
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