JPS5966218A - Delay circuit - Google Patents

Delay circuit

Info

Publication number
JPS5966218A
JPS5966218A JP57176180A JP17618082A JPS5966218A JP S5966218 A JPS5966218 A JP S5966218A JP 57176180 A JP57176180 A JP 57176180A JP 17618082 A JP17618082 A JP 17618082A JP S5966218 A JPS5966218 A JP S5966218A
Authority
JP
Japan
Prior art keywords
delay
tnn
delay circuit
tpn
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.)
Granted
Application number
JP57176180A
Other languages
Japanese (ja)
Other versions
JPH0620176B2 (en
Inventor
Hiroshi Tachimori
央 日月
Hiroshi Fukuda
宏 福田
Chikao Ookubo
大久保 京夫
Osamu Takahashi
収 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Microcomputer System Ltd
Hitachi Ltd
Original Assignee
Hitachi Ltd
Hitachi Microcomputer Engineering Ltd
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 by Hitachi Ltd, Hitachi Microcomputer Engineering Ltd filed Critical Hitachi Ltd
Priority to JP57176180A priority Critical patent/JPH0620176B2/en
Publication of JPS5966218A publication Critical patent/JPS5966218A/en
Publication of JPH0620176B2 publication Critical patent/JPH0620176B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K5/00Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/13Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals
    • H03K5/133Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals using a chain of active delay devices
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K19/00Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/003Modifications for increasing the reliability for protection
    • H03K19/00346Modifications for eliminating interference or parasitic voltages or currents
    • H03K19/00361Modifications for eliminating interference or parasitic voltages or currents in field effect transistor circuits
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K5/00Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K2005/00013Delay, i.e. output pulse is delayed after input pulse and pulse length of output pulse is dependent on pulse length of input pulse
    • H03K2005/0015Layout of the delay element
    • H03K2005/00195Layout of the delay element using FET's

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Nonlinear Science (AREA)
  • Pulse Circuits (AREA)
  • Logic Circuits (AREA)

Abstract

PURPOSE:To manufacture easily a high speed and highly integrated MOSLSI by obtaining a delay circuit where the design change in the delay time is easily made possible for each of input leading and trailing and the layout area can be made small. CONSTITUTION:A capacitor CLL is assumed as a load. When a leading signal is inputted to an input terminal lin, a PMOS turns off and an NMOS turns on. The electric charge stored in the capacitor CL is discharged through NMOSTN1, TN2-TNn. The TN1 acts like a switching element and the TN2-TNn act like resistive elements slowing down the discharge speed. When a trailing signal is inputted to the said lin, the NMOS is turned off and the PMOS turns on. The capacitor CL is charged through the TPn-TP2, TP1. The TP1 acts like a switching element and the TP2-TPn act like resistive elements. The change of the delay time in such a delay circuit is easily made by changing the number of the delay elements TP1-TPn and TN1-TNn, and the layout is attained within a comparatively small area.

Description

【発明の詳細な説明】 この発明は、遅延回路に関する。[Detailed description of the invention] The present invention relates to a delay circuit.

(al  従来技術 MOB集積回路においては、遅延回路として。(al Prior art In MOB integrated circuits, as a delay circuit.

従来トランスファーMO8あるいはイイバータの遅延を
利用した回路が広く用いられている。第1図および第2
図に従来技術における遅延回路の一例を示す。  。
Conventionally, circuits utilizing transfer MO8 or equalizer delay have been widely used. Figures 1 and 2
The figure shows an example of a delay circuit in the prior art. .

第1図には、トランスファーMO8による遅延回路、第
2図には、インバータによる遅延回路を示す。
FIG. 1 shows a delay circuit using a transfer MO8, and FIG. 2 shows a delay circuit using an inverter.

第3図および第4図に2上記遅延回路に、NOR回路あ
るいはNAND回11回加1追加とにより、立上り遅延
と立下り遅延を大きく異体うせた回路を示す。
FIGS. 3 and 4 show circuits in which the rise delay and fall delay are significantly different from the above delay circuits by adding a NOR circuit or 11 NAND circuits plus one additional circuit.

トランスファMO8のみの遅延回路は素子数が少なくて
すみ、かつ、小さいレイアウト面積内に収まる点で秀れ
ている。インバータによる遅延回路では、入力信号の立
上りや立下りのスピードに関係体く確実な遅延が得られ
る点と5.立上りと立下りS異なる遅延時間が得られる
点で秀れている。
A delay circuit including only the transfer MO8 is excellent in that it requires a small number of elements and can fit within a small layout area. 5. In a delay circuit using an inverter, a reliable delay can be obtained regardless of the rising and falling speed of the input signal. It is excellent in that different delay times can be obtained for rising and falling S.

立上りと立下りとで遅延時間を大きく異ならせる場合に
は、NORあるいはN A N、 I)を組十合わせた
一路となる。
If the delay time is to be significantly different between the rising edge and the falling edge, a combination of NOR or NAN, I) will be used.

(b)従来技術の間噴点 MOSメモリーや高速ロジックLSIにおいては1回路
、の基本動作が内部信号のタイミングやクロック幅によ
り大きな影響を受ける。このため製品の開発段階におい
ては、しばしば設計変更を行なl、=l;’3部タイミ
ングやクロック幅の調整を行なうことがある。
(b) Between conventional technologies In a MOS memory or a high-speed logic LSI, the basic operation of one circuit is greatly affected by the timing and clock width of internal signals. Therefore, at the product development stage, design changes are often made to adjust the timing and clock width of the three parts.

以上のことから確実な遅延動作が得られ、かつ、設計変
更が容易な撞延回路が必要とされる。  ′ □第1図
に示したトライスファーMO8を、用いた遅延回路の場
合、入力信号の立下りと立下りの各々の場谷に蛤して異
な今週i−を設定することは非常に困難である。また*
、 遡1延時間な変更する□場合には、ゲート形成層の
変更となるため、製品開発におけるTATbt大となる
。寛極診成層のバ□ター・変更で設鹸i更を可能と□す
る場合には、各トランスファーM’□Sの拡散−を分離
することが必要であり、小面積内にレイ、アウトするこ
とは困難である。
For the above reasons, there is a need for a delay circuit that can provide reliable delay operation and whose design can be easily changed. ' □In the case of a delay circuit using the Trisphere MO8 shown in Fig. 1, it is extremely difficult to set different i- values at each falling edge and falling edge of the input signal. be. Also*
In the case of a change that takes one retroactive time, the TATbt in product development will be large because the gate formation layer will be changed. In order to make it possible to change the setting by changing the data layer of the Kanpoku Diagnostic Stratification, it is necessary to separate the diffusion of each transfer M'□S and lay it out in a small area. That is difficult.

第2図に示した1りζ−夕に、よる遅延回路の場合には
、最初の設計において立、上りと立下りの、各々の遅延
な^ならせて設計することは可能であるが、設aト変更
において各々の遅延時間な調整するためには、ゲート形
成相の変更を必要とする。またインバ―りめ段@な調整
できるようにしてお(ためには予め、信号線が迂−でき
るスペースなあゆでおく必要がある。   :′   
  □第3図及び第4図の回路については、立上りと・
 立下りの各々についての遅延時間の設計および設計竺
、更が可能、であるが、レイアウト面積が大とい:以:
上の様に従業技術□では、上記の要求な光分満足するこ
とはできなかった。
In the case of the delay circuit shown in Fig. 2, it is possible to design the rising, rising, and falling delays to be the same in the initial design. In order to adjust each delay time when changing the configuration, it is necessary to change the gate formation phase. Also, make it possible to make inverted adjustments (in order to do this, it is necessary to leave a space in advance where the signal line can be detoured. :'
□For the circuits in Figures 3 and 4, the rise and
It is possible to design and change the delay time for each falling edge, but the layout area is large.
As shown above, the employee's technology □ could not satisfy the above-mentioned required light intensity.

(C1この発明の目的は、入力の立上りと立下りの各々
について容易に遅延時間の設計変更が可能で。
(C1) An object of the present invention is to easily change the design of the delay time for each of the rising and falling edges of the input.

かつ、レイアウト面積が小さくて済む論−回路を得るこ
とにより、高速、高集i1JI7)MO8LSIの製品
化な容易:にすることにある。
In addition, by obtaining a logic circuit that requires a small layout area, it is possible to easily commercialize a high-speed, high-density MO8LSI.

fd)  発明の実施例 第5図には、 q M O8回路を用いた場合の本発明
の実施例の回路図を示す。先ず回路構成を説明する。P
MO8TP□およびNMO8T  のゲートに入力信号
@形 がつながり、ドレイン側に出力信号線4outが
つながるつφ2.のソース側とvoc 電極との間に、
ゲートにGNDi位が印加されたPMO8T   ・・
・・・・□・・・T  がシリーズにn 接続される。TN□のソース側とGND@極との間にゲ
ートにV 電位が印加されたNMO8TN2C ・・−・・・・・・TNnI がシリーズに接続される
fd) Embodiment of the Invention FIG. 5 shows a circuit diagram of an embodiment of the invention using a qM O8 circuit. First, the circuit configuration will be explained. P
The input signal @ type is connected to the gates of MO8TP□ and NMO8T, and the output signal line 4out is connected to the drain side. between the source side of and the voc electrode,
PMO8T with GNDi level applied to the gate...
...□...T is connected to n series. NMO8TN2C...TNnI with a V potential applied to the gate is connected in series between the source side of TN□ and the GND@ pole.

次の本回路の動作な説明する。負荷として容量CLを想
定する。入力端子l i nに立上りの信号が入力1−
た場合、PMO8がオフして、NMO8がオンする。容
量CLに蓄積されていた電荷は。
The operation of this circuit will be explained next. Assume a capacitance CL as a load. The rising signal at the input terminal l i n is input 1-
If so, PMO8 is turned off and NMO8 is turned on. The charge stored in the capacitor CL is.

NMO8T  、T  ・・・・・・・・・TNn’を
通して放電する。
NMO8T, T...Discharge through TNn'.

NI    N2 TNlはスイッチング素子として働きTN2〜TNn’
放電スピードな遅くするため抵抗棄子として動作する。
NI N2 TNl acts as a switching element and TN2 to TNn'
It acts as a resistor to slow down the discharge speed.

上記J3 i nに立下りの信号が入力した場合には、
NMO8がオフしてPMO8がオレする。1゛二T  
、T  を通して容量Cは*、亀される。T ′はスイ
ッチング素子として働きT 〜T は抵□抗P2   
  Pn 素子として動作する。    □ (el  発明の効果 本発明に係る上記実施例回路を用(・た場合の利点を次
に説明する。  ′     □第5図に示した回路に
おけるPMO8T  〜TPnのto”talの1mを
IIm(T、、 〜T、、)、NMO8TNl〜TNn
’のtotalのymをI m (T、 、〜’T、、
’)どする1、出力信号における立上り遅延t、及び立
下り遅延tNは1時定数τP I TNに比例した値と
なり2 τ、== (cL+c、、 +c、N)/Frri(T
、 1〜TPn)・・・(1)τN =< CL +C
JP + CJ N ) / I m (TN ’1〜
TNrl’)  ・・・(2)ここで、CおよびC′は
T およびT。
If a falling signal is input to J3 in above,
NMO8 turns off and PMO8 turns on. 1゛2T
, T through which the capacitance C is expressed as *. T' acts as a switching element, T ~ T is a resistance □P2
Operates as a Pn element. □ (el Effects of the invention) The advantages of using the above-described circuit according to the present invention will be explained below.' □In the circuit shown in FIG. T,, ~T,,), NMO8TNl~TNn
I m (T, , ~'T,,
') The rising delay t and falling delay tN in the output signal are proportional to the time constant τPI TN, and 2 τ, == (cL+c,, +c,N)/Frri(T
, 1~TPn)...(1) τN =< CL +C
JP + CJ N) / I m (TN '1~
TNrl')...(2) Here, C and C' are T and T.

JP         JN      PIの出力信
号線側の接合容量である。
JP JN Junction capacitance on the output signal line side of PI.

まず、第1の利点は、遅延時間の変更が遅延素子TP□
〜TPnlTNI〜TNn’  の個数の変・更〔gm
(Tp (”□ Tp H) + gm(TN I−T
Nn’ ) ’)により容易に可能な点である。、遅延
素子□の変更は−TrmとTPm、k 11 TNm’
とTNm’+1の間にvc・。電極・あるいはG N 
D 亀・極をつなげることで可能であり1極形成層の変
更で達成できる。
First, the first advantage is that the delay time can be changed using the delay element TP□
~TPnlTNI~Change/Change the number of TNn' [gm
(Tp (”□ Tp H) + gm(TN I-T
This is easily possible due to Nn' ) '). , the change in delay element □ is -Trm and TPm, k 11 TNm'
vc· between and TNm'+1. Electrode or G N
D It is possible by connecting the tortoise and poles, and can be achieved by changing the unipole cambium.

トチンスファーMO8遅延回路の様な、M2S間の拡散
層の分離や、インバータ遅延回路の様なゲート形成相か
らの変更がこの実施例では必要にならlよい。
This embodiment may require separation of the diffusion layer between M2S, such as the Tochinsphere MO8 delay circuit, or changes from the gate formation phase, such as the inverter delay circuit.

第2の利点は、上にも述べたように比較的小さい面積内
にレイアクト可能な点である。
The second advantage, as mentioned above, is that it can be laid out within a relatively small area.

第3の利点としては、遅延素子の個数の変更が。The third advantage is that the number of delay elements can be changed.

他の遅延時間を決定する要因に影響な与えない点にある
It has no effect on other factors that determine the delay time.

例えば、PMO8側の遅延素子を1段減らした場合 τp′=(CL + C、s p +CJ’N ) i
ymc T、、 □〜]+、 n −1)・・・(3) 職=(CL十〇、P十C4N)7gm(TN1〜TNn
′)・・・(4) の様になる。
For example, if the delay element on the PMO8 side is reduced by one stage, τp' = (CL + C, sp + CJ'N) i
ymc T,, □~]+, n -1)...(3) Job=(CL10, P0C4N)7gm(TN1~TNn
')...(4)

”JP、CJNには、スイッチング素子と遅延素子間お
よび遅延素子どうしの間の拡散層の容量が含まれないた
めC1+CJ、+CJNは一定である。よって1m(T
  −T  )がIIm(T、、−’I’Pn−+ )
に変わPI     Pn −た分だけ考慮すればよく、設計変更を行なう上での大
きな利点となる。
"JP and CJN do not include the capacitance of the diffusion layer between the switching element and the delay element and between the delay elements, so C1+CJ and +CJN are constant. Therefore, 1m (T
-T) is IIm(T,, -'I'Pn-+)
It is only necessary to consider PI Pn - instead of , which is a great advantage in making design changes.

第4の利点としては、大きな遅延時間を得るたW>If
Ck’L totalのIrn、Jlrn(T P 1
− T p n ) + j’m (TN s 〜TN
n’  )の値を小さくすれば良い点にある。すなわち
、TP2〜TPn、TN2〜TN n’の1m を小さ
くすれば不”−TPllTNlのgmを小さくする必要
はない。一般に、Imk小さくするためには、チャネル
長の長いM、O8な用いるが、T、1.TN、について
は、一般的なチャネル長のMOSを用いればよく、これ
は、入力回路の負荷容量が、不必要に大きくならないこ
とを意味l−でいろ。
The fourth advantage is that if W>If, a large delay time can be obtained.
Ck'L total's Irn, Jlrn (T P 1
- T p n ) + j'm (TN s ~ TN
The point is that it is sufficient to reduce the value of n'). That is, if 1m of TP2 to TPn and TN2 to TNn' is made small, there is no need to make gm of TPllTNl small.Generally, in order to make Imk small, M and O8, which have a long channel length, are used. For T, 1.TN, a MOS with a general channel length may be used, which means that the load capacity of the input circuit will not become unnecessarily large.

第6図+alないしくelには、それぞれこの発明に係
る遅延回路の変形例が示されている。
FIGS. 6+al to el respectively show modified examples of the delay circuit according to the present invention.

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

第1図ないし第4図は、それぞれ従来技術の一例な示す
回路図。 第5図は、この発明の一実施例を示す回路図。 第6図fatないしくelは、それぞれこの発明の他の
一実施例を示す回路図である。 第  1  図 第  2  図 第  3  図 第  4 図 第  5 図 J
1 to 4 are circuit diagrams each showing an example of the prior art. FIG. 5 is a circuit diagram showing one embodiment of the present invention. FIGS. 6, 6, and 6 are circuit diagrams showing other embodiments of the present invention, respectively. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure J

Claims (1)

【特許請求の範囲】[Claims] インバータ回路を構成し1.直接その出力につながるス
イッチング素子の電源(GNDも含める)側とJIE源
電極電極間に、1・つ以上の、直接入力につながらない
抵抗素子を入れることにより、出力の立上り1.または
、立下り、スピードケ遅くしたことを特徴、とする遅延
回路。
1. Configure an inverter circuit. By inserting one or more resistive elements that are not directly connected to the input between the power supply (including GND) side of the switching element that is directly connected to the output and the JIE source electrode, the rise of the output 1. Or, a delay circuit characterized by slowing down the falling speed.
JP57176180A 1982-10-08 1982-10-08 Delay circuit Expired - Lifetime JPH0620176B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57176180A JPH0620176B2 (en) 1982-10-08 1982-10-08 Delay circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57176180A JPH0620176B2 (en) 1982-10-08 1982-10-08 Delay circuit

Publications (2)

Publication Number Publication Date
JPS5966218A true JPS5966218A (en) 1984-04-14
JPH0620176B2 JPH0620176B2 (en) 1994-03-16

Family

ID=16009050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57176180A Expired - Lifetime JPH0620176B2 (en) 1982-10-08 1982-10-08 Delay circuit

Country Status (1)

Country Link
JP (1) JPH0620176B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171022A2 (en) * 1984-07-31 1986-02-12 Yamaha Corporation Signal delay device
JPS6153818A (en) * 1984-08-23 1986-03-17 Fujitsu Ltd Delay circuit
EP0175501A2 (en) * 1984-08-23 1986-03-26 Fujitsu Limited Delay circuit for gate-array LSI
JPH021613A (en) * 1987-08-01 1990-01-05 Samsung Semiconductor & Telecommun Co Ltd C-mos ttl input buffer utilizing resistance means
US5097159A (en) * 1988-02-22 1992-03-17 Fujitsu Limited Delay circuit for delaying an output signal relative to an input signal for a specified time interval
JP2004071027A (en) * 2002-08-05 2004-03-04 Fujitsu Ltd Semiconductor memory device
JP2008262705A (en) * 2008-08-04 2008-10-30 Fujitsu Microelectronics Ltd Semiconductor memory device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55124326A (en) * 1979-03-19 1980-09-25 Matsushita Electric Ind Co Ltd Phase control circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55124326A (en) * 1979-03-19 1980-09-25 Matsushita Electric Ind Co Ltd Phase control circuit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171022A2 (en) * 1984-07-31 1986-02-12 Yamaha Corporation Signal delay device
JPS6153818A (en) * 1984-08-23 1986-03-17 Fujitsu Ltd Delay circuit
EP0175501A2 (en) * 1984-08-23 1986-03-26 Fujitsu Limited Delay circuit for gate-array LSI
JPH0354899B2 (en) * 1984-08-23 1991-08-21
JPH021613A (en) * 1987-08-01 1990-01-05 Samsung Semiconductor & Telecommun Co Ltd C-mos ttl input buffer utilizing resistance means
US5097159A (en) * 1988-02-22 1992-03-17 Fujitsu Limited Delay circuit for delaying an output signal relative to an input signal for a specified time interval
JP2004071027A (en) * 2002-08-05 2004-03-04 Fujitsu Ltd Semiconductor memory device
JP2008262705A (en) * 2008-08-04 2008-10-30 Fujitsu Microelectronics Ltd Semiconductor memory device

Also Published As

Publication number Publication date
JPH0620176B2 (en) 1994-03-16

Similar Documents

Publication Publication Date Title
US5497263A (en) Variable delay circuit and clock signal supply unit using the same
US5841300A (en) Semiconductor integrated circuit apparatus
JP3167915B2 (en) Delay circuit that can withstand process fluctuations
JP2001339280A (en) Timing difference dividing circuit and method and device for signal control
JPH03190416A (en) Cmos clock generator
JPH0851354A (en) Pass transistor type selector circuit and logic circuit
US5859554A (en) Variable delay circuit
JPS5966218A (en) Delay circuit
CA1221142A (en) Digital integrated circuit comprising complementary field effect transistors
US6710627B2 (en) Dynamic CMOS circuits with individually adjustable noise immunity
JP2771375B2 (en) Level shift circuit
US6255861B1 (en) Hybrid low voltage swing sense amplifier
US6900684B2 (en) Pulse processing circuit and frequency multiplier circuit
US6278296B1 (en) Dynamic logic circuit and integrated circuit device using the logic circuit
JP2003060497A (en) Semiconductor integrated circuit
JP2891920B2 (en) Output buffer circuit
US4563593A (en) Transition detector circuit
US20010004217A1 (en) Signal transmission circuit on semiconductor integrated circuit chip
JPS62120117A (en) Delay circuit
JP3723993B2 (en) Low-speed guaranteed read-only memory
US3602736A (en) Mos ratioless register stage
JPH01175414A (en) Semiconductor integrated circuit
JP2689533B2 (en) CMOS buffer circuit
JPH0514450B2 (en)
JPS60224356A (en) Bus circuit