JPS54136101A - Switching circuit - Google Patents
Switching circuitInfo
- Publication number
- JPS54136101A JPS54136101A JP4269978A JP4269978A JPS54136101A JP S54136101 A JPS54136101 A JP S54136101A JP 4269978 A JP4269978 A JP 4269978A JP 4269978 A JP4269978 A JP 4269978A JP S54136101 A JPS54136101 A JP S54136101A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- terminal
- supplied
- giving
- pin
- 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 decrease one pin of the external terminal and thus to reduce the size of the package form by giving a comparison between the output voltage supplied from the reference voltage generating part and the voltage from the input terminal to produce the control voltage and then giving the selective actuation to the circuit block.
CONSTITUTION: The voltage featuring different levels are supplied from outside to terminal 17 and then to reference voltage generating part 11 as well as to switching circuit 14. Part 11 delivers the constant voltage to line 16 via the voltage supplied from outside to drive circuit block 12 and 13, and circfit 14 compares the voltage delivered from part 11 and the voltage from terminal 17 to produce the control voltage which actuates selectively block 12 or 13 via line 151 or 152. Thus, one pin of the external terminal is decreased, accordingly reducing the size of the package form.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4269978A JPS54136101A (en) | 1978-04-13 | 1978-04-13 | Switching circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4269978A JPS54136101A (en) | 1978-04-13 | 1978-04-13 | Switching circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54136101A true JPS54136101A (en) | 1979-10-23 |
Family
ID=12643291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4269978A Pending JPS54136101A (en) | 1978-04-13 | 1978-04-13 | Switching circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54136101A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05206785A (en) * | 1992-01-24 | 1993-08-13 | Fujitsu General Ltd | Electronic unit |
-
1978
- 1978-04-13 JP JP4269978A patent/JPS54136101A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05206785A (en) * | 1992-01-24 | 1993-08-13 | Fujitsu General Ltd | Electronic unit |
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