JPS6449420A - Interface circuit - Google Patents
Interface circuitInfo
- Publication number
- JPS6449420A JPS6449420A JP62207007A JP20700787A JPS6449420A JP S6449420 A JPS6449420 A JP S6449420A JP 62207007 A JP62207007 A JP 62207007A JP 20700787 A JP20700787 A JP 20700787A JP S6449420 A JPS6449420 A JP S6449420A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- current
- level
- reversal
- collector
- 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
Landscapes
- Logic Circuits (AREA)
Abstract
PURPOSE:To efficiently transmit the output signal of a bipolar transistor up to a high frequency, by supplying a driving current to a reversal transistor which drives an IIL gate. CONSTITUTION:A differential input signal added on input terminals 1a and 1b switches the current of a current source 17 to a collector current by a pair of transistors 13 and 14, respectively. At a time when the current of the current source 17 flows on a transistor 13, a transistor 16 is energized, and the reversal transistor 18 is set at a cut-off state, and the IIL gate 21 is set at an input H level and output L level. When a current flows on the collector of the transistor 14, since transistors 15 and 16 are set at cut-off states, the collector current of the transistor 14 becomes the base current of the transistor 18 and energizes the reversal transistor 18, thereby, the IIL gate 21 is set at an input L level and output H level.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62207007A JPS6449420A (en) | 1987-08-20 | 1987-08-20 | Interface circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62207007A JPS6449420A (en) | 1987-08-20 | 1987-08-20 | Interface circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6449420A true JPS6449420A (en) | 1989-02-23 |
Family
ID=16532652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62207007A Pending JPS6449420A (en) | 1987-08-20 | 1987-08-20 | Interface circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6449420A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54114986A (en) * | 1978-02-14 | 1979-09-07 | Motorola Inc | Differential singleeended converter circuit using reverse transistor |
JPS59108427A (en) * | 1982-12-14 | 1984-06-22 | Toshiba Corp | Interface circuit |
-
1987
- 1987-08-20 JP JP62207007A patent/JPS6449420A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54114986A (en) * | 1978-02-14 | 1979-09-07 | Motorola Inc | Differential singleeended converter circuit using reverse transistor |
JPS59108427A (en) * | 1982-12-14 | 1984-06-22 | Toshiba Corp | Interface circuit |
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