JPH0260334U - - Google Patents

Info

Publication number
JPH0260334U
JPH0260334U JP13863488U JP13863488U JPH0260334U JP H0260334 U JPH0260334 U JP H0260334U JP 13863488 U JP13863488 U JP 13863488U JP 13863488 U JP13863488 U JP 13863488U JP H0260334 U JPH0260334 U JP H0260334U
Authority
JP
Japan
Prior art keywords
clock signal
terminals
cell
automatic placement
circuit
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
Application number
JP13863488U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP13863488U priority Critical patent/JPH0260334U/ja
Publication of JPH0260334U publication Critical patent/JPH0260334U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本考案の自動配置配線用セルの一実施
例図、第2図は上記のセルを用いたシフトレジス
タの回路ブロツク図、第3図は該シフトレジスタ
のレイアウト図、第4図は該シフトレジスタのタ
イミングチヤート、第5図は従来のD型フリツプ
フロツプの一例図、第6図は従来のシフトレジス
タの回路ブロツク図、第7図は第6図の回路のタ
イミングチヤート、第8図は誤動作を生じた場合
のタイミングチヤート、第9図は従来のセルを用
いて自動配置配線でレイアウトを行つた場合の一
例図である。 〈符号の説明〉、D……データ入力端子、CI
N……クロツク信号入力端子、COUT……クロ
ツク信号出力端子、Q,……出力端子、R……
リセツト端子、F〜F11,Fn……D型フリ
ツプフロツプ、Q〜Qn……データ出力。
FIG. 1 is a diagram of an embodiment of the automatic placement and routing cell of the present invention, FIG. 2 is a circuit block diagram of a shift register using the above cell, FIG. 3 is a layout diagram of the shift register, and FIG. 5 is an example of a conventional D-type flip-flop, FIG. 6 is a circuit block diagram of a conventional shift register, FIG. 7 is a timing chart of the circuit in FIG. 6, and FIG. 8 is a timing chart of the shift register. A timing chart in the case of a malfunction is shown in FIG. 9, which is an example of a layout performed by automatic placement and wiring using conventional cells. <Explanation of symbols>, D...Data input terminal, CI
N...Clock signal input terminal, COUT...Clock signal output terminal, Q,...Output terminal, R...
Reset terminal, F0 to F11 , Fn...D flip-flop, Q0 to Qn...data output.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] クロツク信号に同期して動作する回路に使用す
るセルにおいて、クロツク信号が入力する端子と
、該入力したクロツク信号をそのまま若しくは所
定の遅延を持たせて出力する端子とを別個に設け
たことを特徴とする自動配置配線用セル。
A cell used in a circuit that operates in synchronization with a clock signal is characterized by having separate terminals for inputting the clock signal and terminals for outputting the input clock signal as is or with a predetermined delay. A cell for automatic placement and routing.
JP13863488U 1988-10-26 1988-10-26 Pending JPH0260334U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13863488U JPH0260334U (en) 1988-10-26 1988-10-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13863488U JPH0260334U (en) 1988-10-26 1988-10-26

Publications (1)

Publication Number Publication Date
JPH0260334U true JPH0260334U (en) 1990-05-02

Family

ID=31401149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13863488U Pending JPH0260334U (en) 1988-10-26 1988-10-26

Country Status (1)

Country Link
JP (1) JPH0260334U (en)

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