JPH01102942U - - Google Patents
Info
- Publication number
- JPH01102942U JPH01102942U JP19795087U JP19795087U JPH01102942U JP H01102942 U JPH01102942 U JP H01102942U JP 19795087 U JP19795087 U JP 19795087U JP 19795087 U JP19795087 U JP 19795087U JP H01102942 U JPH01102942 U JP H01102942U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- memory
- power outage
- stop
- destruction
- 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
- 230000006378 damage Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
- Dram (AREA)
Description
第１図は本考案のメモリ破壊防止回路の原理ブ
ロツク図、第２図は一実施例の保障回路のブロツ
ク図、第３図は一実施例の電源断検出回路のブロ
ツク図、第４図は一実施例の保障回路の信号波形
図、第５図は従来のメモリ回路のブロツク図、第
６図は従来のメモリ部の動作を説明するための信
号波形図である。
図において、１は情報処理装置、２はメモリ部
、３はメモリ制御回路、４は電源断検出回路、５
は保障回路、６は停止タイミング設定回路、７は
停止信号発生回路、８は整流回路、９は比較回路
、１０は電源断信号発生回路、１１はクロツク信
号発生回路、１２は合成回路、１３はカウンタを
示している。
Fig. 1 is a principle block diagram of the memory destruction prevention circuit of the present invention, Fig. 2 is a block diagram of a guarantee circuit of one embodiment, Fig. 3 is a block diagram of a power failure detection circuit of one embodiment, and Fig. 4 is a block diagram of a power failure detection circuit of one embodiment. FIG. 5 is a block diagram of a conventional memory circuit, and FIG. 6 is a signal waveform diagram for explaining the operation of a conventional memory section. In the figure, 1 is an information processing device, 2 is a memory section, 3 is a memory control circuit, 4 is a power-off detection circuit, and 5
6 is a guarantee circuit, 6 is a stop timing setting circuit, 7 is a stop signal generation circuit, 8 is a rectification circuit, 9 is a comparison circuit, 10 is a power-off signal generation circuit, 11 is a clock signal generation circuit, 12 is a synthesis circuit, and 13 is a Shows a counter.
Claims (1)
壊を防止するメモリ破壊防止回路であつて、 電源断を検出する電源断検出回路４と、前記検
出した時間から所定時間遅れたタイミングでメモ
リ部の動作を停止する停止信号を発生する保障回
路５を設け、該保障回路を停止タイミング設定回
路６と停止信号発生回路７とで構成したことを特
徴とするメモリ破壊防止回路。[Claims for Utility Model Registration] A memory destruction prevention circuit that controls the operation of a memory unit 2 during a power outage to prevent its destruction, comprising a power outage detection circuit 4 that detects a power outage, and the detected time. A memory characterized in that it is provided with a guarantee circuit 5 that generates a stop signal to stop the operation of the memory section at a timing delayed by a predetermined time from the start, and the guarantee circuit is constituted by a stop timing setting circuit 6 and a stop signal generating circuit 7. Destruction prevention circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19795087U JPH01102942U (en) | 1987-12-26 | 1987-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19795087U JPH01102942U (en) | 1987-12-26 | 1987-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01102942U true JPH01102942U (en) | 1989-07-12 |
Family
ID=31488480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19795087U Pending JPH01102942U (en) | 1987-12-26 | 1987-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01102942U (en) |
-
1987
- 1987-12-26 JP JP19795087U patent/JPH01102942U/ja active Pending
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