JPS61154153A - integrated circuit device - Google Patents
integrated circuit deviceInfo
- Publication number
- JPS61154153A JPS61154153A JP59277618A JP27761884A JPS61154153A JP S61154153 A JPS61154153 A JP S61154153A JP 59277618 A JP59277618 A JP 59277618A JP 27761884 A JP27761884 A JP 27761884A JP S61154153 A JPS61154153 A JP S61154153A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- integrated circuit
- circuit device
- oscillation circuit
- external lead
- 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
Links
- 230000010355 oscillation Effects 0.000 claims description 33
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/90—Masterslice integrated circuits
Landscapes
- Semiconductor Integrated Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
この発明は発振回路内蔵の集積回路装置を使用する際、
発振出力端子に複数の機能を持たせ、発振出力端子を有
効に活用することを可能とする集積回路装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention applies when using an integrated circuit device with a built-in oscillation circuit.
The present invention relates to an integrated circuit device that allows an oscillation output terminal to have multiple functions and effectively utilize the oscillation output terminal.
従来の技術
従来、集積回路装置に内蔵された自動発掘回路部を他励
発振回路として使用する場合には、第２図に示すように
、集積回路装置１に内蔵された発振回路２の外部リード
端子３に他励発振入力信号を加えて使用するのが一般的
である。こうした場合には発振回路２に配設されたもう
一方の外部リード端子４は、他励発振回路として使用す
る場合には不要な端子であった。従来、このような不要
外部リード端子を有効に活用するために、集積回路装置
１を製造する時に用いられる配線マスクを変更して、外
部リード端子４に、発振回路２とは異なる回路部が接続
されるようにして、同回路部よシ所望の信号を導出して
いた。2. Description of the Related Art Conventionally, when an automatic excavation circuit built in an integrated circuit device is used as a separately excited oscillation circuit, as shown in FIG. Generally, a separately excited oscillation input signal is added to the terminal 3 for use. In such a case, the other external lead terminal 4 disposed in the oscillation circuit 2 is an unnecessary terminal when used as a separately excited oscillation circuit. Conventionally, in order to make effective use of such unnecessary external lead terminals, the wiring mask used when manufacturing the integrated circuit device 1 was changed, and a circuit section different from the oscillation circuit 2 was connected to the external lead terminal 4. The desired signal was derived from the same circuit section in a manner similar to that described above.
発明が解決しようとする問題点
しかしこのような使用構成においては、本来の回路仕様
、すなわち自動発振回路用の配線マスクとは別に他励発
振回路用の配線マスクをも用意しなければならず、費用
的に高くなること、さらには完成した集積回路装置を提
供するまでには多くの製作時間が必要であることから、
需要者の要望に対して短時間では対応できないという問
題点があった。Problems to be Solved by the Invention However, in such a usage configuration, a wiring mask for the separately excited oscillation circuit must be prepared in addition to the original circuit specifications, that is, a wiring mask for the automatic oscillation circuit. This is because it is expensive and requires a lot of manufacturing time to provide a completed integrated circuit device.
There was a problem in that it was not possible to respond to the demands of consumers in a short period of time.
そこでこの発明は、上記の問題点を排除した集積回路装
置を提供することである。SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an integrated circuit device that eliminates the above-mentioned problems.
問題点を解決するための手段
この発明は上記問題点を解決するため、他励発振回路仕
様として使用する場合には、集積回路装置に内蔵された
発振回路に配設された外部リード端子に、前記発振回路
とは異なる回路部の信号がスイッチング手段を介して同
じ外部リード端子から導出又は印加されるように構成さ
れている。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention, when used as a separately excited oscillation circuit specification, provides an external lead terminal arranged on an oscillation circuit built in an integrated circuit device. It is configured such that a signal from a circuit section different from the oscillation circuit is derived from or applied to the same external lead terminal via a switching means.
作用
上記した回路構成によれば、スイッチ手段を切換えるこ
とで、自動発振回路又は他励発振回路としての回路仕様
を選択できる。Effect: According to the circuit configuration described above, the circuit specification as an automatic oscillation circuit or a separately excited oscillation circuit can be selected by switching the switch means.
実施例
以下、本発明を実施例を用いて説明する。第１図は本発
明にかかる集積回路装置を示す。なお、第２図の従来例
と同一箇所は同じ符号を与えた。EXAMPLES The present invention will be explained below using examples. FIG. 1 shows an integrated circuit device according to the invention. Note that the same parts as in the conventional example shown in FIG. 2 are given the same reference numerals.
図中５はスイッチング手段、６はスイッチング手段５を
制御させる制御信号線、７は集積回路装置１に内蔵され
た回路部を示す。まず、本発明の集積回路装置１に内蔵
された発振回路２を自動発振回路として用いたい場合に
は、外部リード端子３と外部リード端子４との間に、た
とえば水晶発振子（図示せず）を接続する。さらに、発
振回路２からの信号が前記水晶発振子に伝達されるよう
に、すなわち外部リード端子４に導出されるように、ス
イッチング手段６には、制御信号が制御信号線６を通じ
て供給されている。In the figure, reference numeral 5 indicates a switching means, 6 a control signal line for controlling the switching means 5, and 7 a circuit section built into the integrated circuit device 1. First, when it is desired to use the oscillation circuit 2 built in the integrated circuit device 1 of the present invention as an automatic oscillation circuit, a crystal oscillator (not shown), for example, is connected between the external lead terminals 3 and 4. Connect. Further, a control signal is supplied to the switching means 6 through a control signal line 6 so that the signal from the oscillation circuit 2 is transmitted to the crystal oscillator, that is, led out to the external lead terminal 4. .
次に、発振回路２を他励発振回路として用いる場合を説
明する。この場合には、発振回路２とは別の回路装置（
図示せず）からの信号が外部ＩＪ −ド端子３に与えら
れる。したがって、発振回路２には本来の発振回路とし
ての機能が要求されないので、単なる信号処理の働きで
十分であり、外部リード端子４は不要になる場合が生ず
る。こうした構成下においては外部リード端子４を有効
に活用することが望まれる。すなわち、たとえば回路部
７から信号を導出したい場合や逆に回路部７へ信号を入
力したい場合には、外部リード端子４と回路部７との間
にスイッチング手段５を介して導電路を形成する。そし
て、スイッチング手段５に制御線６を通じて、前記の自
動発振回路として用いた時とは逆極性の制御信号を与え
ればよい。ここで、制御線６に与えられる制御信号の極
性は、集積回路装置１内に内蔵されたたとえばＲＯＭの
プログラム操作で択一的に選択される。Next, a case will be described in which the oscillation circuit 2 is used as a separately excited oscillation circuit. In this case, a circuit device other than the oscillation circuit 2 (
(not shown) is applied to the external IJ-do terminal 3. Therefore, since the oscillation circuit 2 is not required to function as an original oscillation circuit, a mere signal processing function is sufficient, and the external lead terminal 4 may become unnecessary. Under such a configuration, it is desirable to effectively utilize the external lead terminals 4. That is, for example, when it is desired to derive a signal from the circuit section 7 or conversely when it is desired to input a signal to the circuit section 7, a conductive path is formed between the external lead terminal 4 and the circuit section 7 via the switching means 5. . Then, a control signal having a polarity opposite to that when used as the automatic oscillation circuit may be applied to the switching means 5 through the control line 6. Here, the polarity of the control signal applied to the control line 6 is selectively selected by a program operation of, for example, a ROM built in the integrated circuit device 1.
なお、本発明の一実施例においては、発振回路２とは回
路機能が異なる回路部７を例示したが、これに限定され
るものではない。たとえば、発振回路２の後段に増幅器
や波形整形回路等が接続され、それらに生じた信号を集
積回路装置１の外部に取り出したい場合でも適用できる
。In one embodiment of the present invention, the circuit section 7 having a different circuit function from the oscillation circuit 2 is illustrated, but the present invention is not limited to this. For example, the present invention can be applied even when an amplifier, a waveform shaping circuit, etc. are connected to the rear stage of the oscillation circuit 2, and it is desired to extract the signals generated therefrom to the outside of the integrated circuit device 1.
また、スイッチング手段６は、発振回路２の出力側に配
置されたものを例示したがこれにも限定されない。たと
えば、外部リード端子３すなわち発振回路２の入力側に
設けるならば、複数の入力端子を有する他励発振回路と
して応用できる。Further, although the switching means 6 is shown as being disposed on the output side of the oscillation circuit 2, the present invention is not limited thereto. For example, if it is provided on the external lead terminal 3, that is, on the input side of the oscillation circuit 2, it can be applied as a separately excited oscillation circuit having a plurality of input terminals.
発明の効果
以上実施例で説明したように、本発明によれば、本来、
回路仕様が自動発振回路として構成された集積回路装置
を他励発振回路として使用した場合に生じる余分な外部
リード端子を有効に活用することができるので、その利
用的価値は大きい。Effects of the Invention As explained in the embodiments above, according to the present invention, originally,
Since the extra external lead terminals generated when an integrated circuit device whose circuit specification is configured as an automatic oscillation circuit is used as a separately excited oscillation circuit can be effectively utilized, its utility value is great.
第１図は本発明にかかる集積回路装置の一実施例を示す
図、第２図は従来の集積回路装置を示す図である。
１・・・・・・集積回路装置、２・・・・・・発振回路
、３，４・・・・・・外部リード端子、５・・・・・・
スイッチング手段、６・・・・・・制御信号線、７・・
・・・・回路部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名嘩寸
ＱFIG. 1 is a diagram showing an embodiment of an integrated circuit device according to the present invention, and FIG. 2 is a diagram showing a conventional integrated circuit device. 1... Integrated circuit device, 2... Oscillation circuit, 3, 4... External lead terminal, 5...
Switching means, 6... Control signal line, 7...
...Circuit section. Name of agent: Patent attorney Toshio Nakao and one other person
Claims (1)
は異なる第２の回路部とが内蔵される集積回路装置であ
って、前記第１の回路部と前記第２の回路部とはスイッ
チング手段を介して択一選択的に外部リード端子に導出
されていることを特徴とする集積回路装置。An integrated circuit device incorporating at least a first circuit section including an automatic oscillation circuit and a second circuit section different therefrom, wherein the first circuit section and the second circuit section are connected to a switching means. An integrated circuit device characterized in that the integrated circuit device is selectively led out to an external lead terminal via the terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59277618A JPS61154153A (en) | 1984-12-27 | 1984-12-27 | integrated circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59277618A JPS61154153A (en) | 1984-12-27 | 1984-12-27 | integrated circuit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61154153A true JPS61154153A (en) | 1986-07-12 |
| JPH0518463B2 JPH0518463B2 (en) | 1993-03-12 |
Family
ID=17585927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59277618A Granted JPS61154153A (en) | 1984-12-27 | 1984-12-27 | integrated circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61154153A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6363204A (en) * | 1986-09-03 | 1988-03-19 | Nec Corp | Integrated circuit device |
| WO1997041635A1 (en) * | 1996-04-29 | 1997-11-06 | Siemens Aktiengesellschaft | Integrated clock-signal generating circuit |
-
1984
- 1984-12-27 JP JP59277618A patent/JPS61154153A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6363204A (en) * | 1986-09-03 | 1988-03-19 | Nec Corp | Integrated circuit device |
| JPH054846B2 (en) * | 1986-09-03 | 1993-01-21 | Nippon Electric Co | |
| WO1997041635A1 (en) * | 1996-04-29 | 1997-11-06 | Siemens Aktiengesellschaft | Integrated clock-signal generating circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0518463B2 (en) | 1993-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |