JPS5860399U - Semiconductor memory power failure protection circuit - Google Patents
Semiconductor memory power failure protection circuitInfo
- Publication number
- JPS5860399U JPS5860399U JP15296881U JP15296881U JPS5860399U JP S5860399 U JPS5860399 U JP S5860399U JP 15296881 U JP15296881 U JP 15296881U JP 15296881 U JP15296881 U JP 15296881U JP S5860399 U JPS5860399 U JP S5860399U
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor memory
- power supply
- protection circuit
- power failure
- memory power
- 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
- Techniques For Improving Reliability Of Storages (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Power Sources (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図と第２図は本考案の実施例を示す回路図である。
なお図において、１・・・・・・電源入力端子、２・・
・・・・ＰＮＰ トランジスタ、３・・・・・・電源出
力端子、４・・・・・・ツエ九−ダイオード、５． ６
． ７． ９． １１・・・・・・抵抗、１０・・・・
・・大容量コンデンサ、１２・・・・・・トランジスタ
制御端水を示す。1 and 2 are circuit diagrams showing an embodiment of the present invention. In the figure, 1... power input terminal, 2...
...PNP transistor, 3...Power output terminal, 4...Tsue9-diode, 5. 6
．． 7. 9. 11...Resistance, 10...
...Large capacity capacitor, 12... Indicates transistor control end water.
Claims (1)
電源電流を供給し、電源停電時、前記電源電流を阻止す
るトランジスタを備え、前記大容量コンデンサが電源正
常時、前記電源電流により充電され、電源停電時、前記
半導体メモリへ放電々流を供給することを特徴とする半
導体メモリの停電保護回路。A transistor is provided that supplies the power supply current to the semiconductor memory and the large-capacity capacitor when the power supply is normal, and blocks the power supply current during a power outage, and the large-capacity capacitor is charged by the power supply current when the power supply is normal, and when the power supply is interrupted, the transistor supplies the power supply current to the semiconductor memory and the large-capacity capacitor. 1. A power outage protection circuit for a semiconductor memory, characterized in that a power outage protection circuit for a semiconductor memory is configured to supply a discharge current to the semiconductor memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15296881U JPS5860399U (en) | 1981-10-15 | 1981-10-15 | Semiconductor memory power failure protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15296881U JPS5860399U (en) | 1981-10-15 | 1981-10-15 | Semiconductor memory power failure protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5860399U true JPS5860399U (en) | 1983-04-23 |
Family
ID=29945603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15296881U Pending JPS5860399U (en) | 1981-10-15 | 1981-10-15 | Semiconductor memory power failure protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5860399U (en) |
-
1981
- 1981-10-15 JP JP15296881U patent/JPS5860399U/en active Pending
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