JPH0323948U - - Google Patents
Info
- Publication number
- JPH0323948U JPH0323948U JP8548689U JP8548689U JPH0323948U JP H0323948 U JPH0323948 U JP H0323948U JP 8548689 U JP8548689 U JP 8548689U JP 8548689 U JP8548689 U JP 8548689U JP H0323948 U JPH0323948 U JP H0323948U
- Authority
- JP
- Japan
- Prior art keywords
- input
- logic circuit
- internal logic
- output buffer
- buffer
- 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
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Semiconductor Integrated Circuits (AREA)
Description
第1図は本考案の半導体集積回路の入出力バツ
フア部のブロツク図、第2図は本考案の入出力バ
ツフアを説明するための論理回路図、第3図は従
来の入出力バツフアの論理回路図、第4図は従来
の半導体集積回路の入出力バツフア部のブロツク
図である。
1,201……入力バツフア、2,202……
出力バツフア、3,203……Pチヤンネルトラ
ンジスタ、4,204……Nチヤンネルトランジ
スタ、5,205……NANDゲート、6,20
6……NORゲート、7,8,207,208,
C3〜C0……入出力制御信号、9,209,I
3〜I0……入力データ信号、10,210,O
3〜O0……出力データ信号、11,30,10
5……内部論理回路、12,31〜34,114
〜117,212……端子パツド、13,213
……プリドライバー、14,216……インバー
タ、21,100……ICチツプ、22〜25,
101〜104……入出力バツフア、26,10
6,110……VDD端子パツド、28,108
,112……GND端子パツド、27,107,
111……VDD配線、29,109,113…
…GND配線、214……出力バツフアPchT
rソース、215……出力バツフアNchTrソ
ース。
Figure 1 is a block diagram of the input/output buffer section of the semiconductor integrated circuit of the present invention, Figure 2 is a logic circuit diagram for explaining the input/output buffer of the present invention, and Figure 3 is the logic circuit of a conventional input/output buffer. 4 are block diagrams of an input/output buffer section of a conventional semiconductor integrated circuit. 1,201...Input buffer, 2,202...
Output buffer, 3,203...P channel transistor, 4,204...N channel transistor, 5,205...NAND gate, 6,20
6...NOR gate, 7, 8, 207, 208,
C3-C0...Input/output control signal, 9,209,I
3-I0...Input data signal, 10,210,O
3~O0...Output data signal, 11, 30, 10
5... Internal logic circuit, 12, 31 to 34, 114
~117,212...Terminal pad, 13,213
...Pre-driver, 14,216...Inverter, 21,100...IC chip, 22-25,
101-104...Input/output buffer, 26,10
6,110...VDD terminal pad, 28,108
,112...GND terminal pad, 27,107,
111...VDD wiring, 29, 109, 113...
...GND wiring, 214...Output buffer PchT
r source, 215...Output buffer NchTr source.
Claims (1)
え、前記内部論理回路より出力される制御信号に
より、前記入出力バツフアを構成する入力バツフ
アあるいは出力バツフアのいずれかをアクテイブ
とする半導体集積回路において、前記出力バツフ
アにのみ電源を供給するための電源端子パツドお
よび配線が、前記入力バツフアと内部論理回路へ
電源を供給するための電源端子パツドおよび配線
とは別に備えられていることを特徴とする半導体
集積回路。 A semiconductor integrated circuit comprising at least an input/output buffer and an internal logic circuit, and in which either the input buffer or the output buffer constituting the input/output buffer is activated by a control signal output from the internal logic circuit. A semiconductor integrated circuit characterized in that a power terminal pad and wiring for supplying power only to the input buffer and the internal logic circuit are provided separately from the power terminal pad and wiring for supplying power to the input buffer and the internal logic circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8548689U JPH0323948U (en) | 1989-07-19 | 1989-07-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8548689U JPH0323948U (en) | 1989-07-19 | 1989-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0323948U true JPH0323948U (en) | 1991-03-12 |
Family
ID=31634648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8548689U Pending JPH0323948U (en) | 1989-07-19 | 1989-07-19 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0323948U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0711783A (en) * | 1993-06-28 | 1995-01-13 | Kawamoto Kunichika | Dwelling house |
-
1989
- 1989-07-19 JP JP8548689U patent/JPH0323948U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0711783A (en) * | 1993-06-28 | 1995-01-13 | Kawamoto Kunichika | Dwelling house |
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