JPS6458118A - Input and output circuit - Google Patents
Input and output circuitInfo
- Publication number
- JPS6458118A JPS6458118A JP62215591A JP21559187A JPS6458118A JP S6458118 A JPS6458118 A JP S6458118A JP 62215591 A JP62215591 A JP 62215591A JP 21559187 A JP21559187 A JP 21559187A JP S6458118 A JPS6458118 A JP S6458118A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- input
- level
- terminals
- transfer gate
- 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 handle analog and digital signals by one device by providing a line passable an analog signal and using logic signals at two terminals so as to switch the path for the analog and digital signals. CONSTITUTION:In giving 'H' level to terminals 1, 2, a terminal 3 reaches a high impedance, a 4th transfer gate 19 is conductive and the analog input/output mode is attained between terminals 3 and 4. Moreover, a 2nd transfer gate 17 is conductive and the input of a 4th inverter 8 is fixed to a GND level. In giving an 'L' level to the terminal 1 and 'H' level to the terminal 2, the terminal 3 reaches a high impedance, a 1st transfer gate 16 and a 3rd transfer gate 18 are conductive to form the digital mode using the terminal 3 as the input and the terminal 4 as the output. In giving an 'L' level to the terminal 2, the digital mode is attained, where the terminals 3, 4 are used as the inverted outputs and the terminal 1 is used as the input.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62215591A JPS6458118A (en) | 1987-08-28 | 1987-08-28 | Input and output circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62215591A JPS6458118A (en) | 1987-08-28 | 1987-08-28 | Input and output circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6458118A true JPS6458118A (en) | 1989-03-06 |
Family
ID=16674964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62215591A Pending JPS6458118A (en) | 1987-08-28 | 1987-08-28 | Input and output circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6458118A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05152962A (en) * | 1991-11-26 | 1993-06-18 | Mitsubishi Electric Corp | Semiconductor device |
JPH06244371A (en) * | 1992-10-05 | 1994-09-02 | Matsushita Electric Ind Co Ltd | Semiconductor device |
US6353296B1 (en) | 1999-10-15 | 2002-03-05 | Motorola, Inc. | Electronic driver circuit with multiplexer for alternatively driving a load or a bus line, and method |
-
1987
- 1987-08-28 JP JP62215591A patent/JPS6458118A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05152962A (en) * | 1991-11-26 | 1993-06-18 | Mitsubishi Electric Corp | Semiconductor device |
JPH06244371A (en) * | 1992-10-05 | 1994-09-02 | Matsushita Electric Ind Co Ltd | Semiconductor device |
US6353296B1 (en) | 1999-10-15 | 2002-03-05 | Motorola, Inc. | Electronic driver circuit with multiplexer for alternatively driving a load or a bus line, and method |
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