JPS5949238U - CPU reset circuit - Google Patents
CPU reset circuitInfo
- Publication number
- JPS5949238U JPS5949238U JP14537982U JP14537982U JPS5949238U JP S5949238 U JPS5949238 U JP S5949238U JP 14537982 U JP14537982 U JP 14537982U JP 14537982 U JP14537982 U JP 14537982U JP S5949238 U JPS5949238 U JP S5949238U
- Authority
- JP
- Japan
- Prior art keywords
- reset circuit
- voltage
- cpu reset
- power supply
- supply voltage
- 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
Landscapes
- Electronic Switches (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
第１図は従来のＣＰＵのリセット回路を示す回路接続図
、第２図、第３図はこの考案の実施例を示すＣＰＵのリ
セット回路の回路接続図である。
Ｒ：リセット用抵抗、Ｃ：リセット用コンデンサ、１：
ゲート、２．ＣＰＵ、 ３：比較回路、ＺＤ：ツェナダ
イオード、Ｒ１，Ｒ２，：電源電圧分圧用抵抗、ｄ：ダ
イオードｇ。FIG. 1 is a circuit connection diagram showing a conventional CPU reset circuit, and FIGS. 2 and 3 are circuit connection diagrams of a CPU reset circuit showing an embodiment of this invention. R: Reset resistor, C: Reset capacitor, 1:
Gate, 2. CPU, 3: comparison circuit, ZD: Zener diode, R1, R2,: power supply voltage dividing resistor, d: diode g.
Claims (1)
を維持する基準電圧発生手段と、前記電源電圧を分圧す
る手段と、前記基準電圧と前記分圧手段よりの分圧電圧
を比較する手段と、この比較手段の比較出力を設け、前
記分圧電圧が前記基準電圧以下になったときにＣＰｔＪ
にリセットをかける手段とよりなることを特徴とするＣ
ＰＵのリセット回路。 □□シ[Claims for Utility Model Registration] Power supply voltage supply means, reference voltage generation means for maintaining a predetermined voltage even when the power supply voltage decreases, means for dividing the power supply voltage, and the reference voltage and the voltage division means. means for comparing the divided voltages of the
C, characterized in that it is a means for resetting the
PU reset circuit. □□
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14537982U JPS5949238U (en) | 1982-09-24 | 1982-09-24 | CPU reset circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14537982U JPS5949238U (en) | 1982-09-24 | 1982-09-24 | CPU reset circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5949238U true JPS5949238U (en) | 1984-04-02 |
Family
ID=30323915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14537982U Pending JPS5949238U (en) | 1982-09-24 | 1982-09-24 | CPU reset circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949238U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53106524A (en) * | 1977-03-01 | 1978-09-16 | Toshiba Corp | Initial clear unit for digital circuit |
-
1982
- 1982-09-24 JP JP14537982U patent/JPS5949238U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53106524A (en) * | 1977-03-01 | 1978-09-16 | Toshiba Corp | Initial clear unit for digital circuit |
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