JPS6438828A - Lsi circuit with multiswitching mode - Google Patents
Lsi circuit with multiswitching modeInfo
- Publication number
- JPS6438828A JPS6438828A JP62196001A JP19600187A JPS6438828A JP S6438828 A JPS6438828 A JP S6438828A JP 62196001 A JP62196001 A JP 62196001A JP 19600187 A JP19600187 A JP 19600187A JP S6438828 A JPS6438828 A JP S6438828A
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- polarities
- outputted
- those
- terminals
- 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 reduce the number of gates used in an LSI by sharing gates in plural combinations out of combinations of switching states of one or plural block circuits. CONSTITUTION:When polarities of selector circuits S12-S1n are set to the A side and those of circuits S21-S2n are set to the A side, input signals of external input terminals i11-i1n are outputted to external output terminal O11-O1n through block circuits D11-D1n. When polarities of circuits S12-S1n are set to the B side and those of circuits S21-S2n are set to the A side, the input from the terminal i11 passes the blocks D11 and is not only inputted to the block D12 but also outputted to the terminal O11. When polarities of circuits S12-S1n are set to the A side and those of circuits S21-S2n are set to the B side, input signals of terminals i11-i1n do not pass circuits D but pass by-pass lines and are outputted to terminals O11-O1n. Since circuits S are arranged in this manner, they are shared among three kinds of function and the number of required gates is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196001A JPS6438828A (en) | 1987-08-05 | 1987-08-05 | Lsi circuit with multiswitching mode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196001A JPS6438828A (en) | 1987-08-05 | 1987-08-05 | Lsi circuit with multiswitching mode |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6438828A true JPS6438828A (en) | 1989-02-09 |
Family
ID=16350569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62196001A Pending JPS6438828A (en) | 1987-08-05 | 1987-08-05 | Lsi circuit with multiswitching mode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6438828A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57197649A (en) * | 1976-05-03 | 1982-12-03 | Ibm | Arithmetic logic device |
JPS58146949A (en) * | 1982-02-26 | 1983-09-01 | Nec Corp | General logical circuit |
-
1987
- 1987-08-05 JP JP62196001A patent/JPS6438828A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57197649A (en) * | 1976-05-03 | 1982-12-03 | Ibm | Arithmetic logic device |
JPS58146949A (en) * | 1982-02-26 | 1983-09-01 | Nec Corp | General logical circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5483341A (en) | Digital integrated circuit | |
KR870009552A (en) | Logic circuit | |
JPS57129536A (en) | Variable logic device | |
JPS6438828A (en) | Lsi circuit with multiswitching mode | |
JPS57138220A (en) | Data input equipment for logical circuit | |
EP0262556A3 (en) | A high speed flip-flop latch | |
DE3675050D1 (en) | SIGNAL SELECTION CIRCUIT. | |
GB1291184A (en) | Logic interconnection including a field effect transistor | |
JPS56162536A (en) | Sequential switcher | |
JPS55132130A (en) | Tri-state input circuit | |
JPS56116328A (en) | Multiplexer circuit | |
JPS5537924A (en) | Integrated circuit | |
JPS5725744A (en) | Interleaving circuit | |
GB1454190A (en) | Logical arrays | |
ATE43930T1 (en) | SIGNALING CIRCUIT. | |
KR870002597A (en) | Shift register circuit with reduced number of constituent logic gates | |
JPS5679532A (en) | Logic circuit | |
JPS56164425A (en) | Bus driving circuit | |
JPS55147039A (en) | Logic circuit | |
KR860002616Y1 (en) | Binary logic signal output circuit | |
KR910021050A (en) | Decoder circuit | |
JPS57178543A (en) | Digital comparator | |
JPS57109045A (en) | Data transfer speed converting circuit | |
JPS5798172A (en) | Memory access controlling circuit | |
JPS6446323A (en) | Analog/digital converter |