JPS5984625U - microcomputer - Google Patents
microcomputerInfo
- Publication number
- JPS5984625U JPS5984625U JP17850382U JP17850382U JPS5984625U JP S5984625 U JPS5984625 U JP S5984625U JP 17850382 U JP17850382 U JP 17850382U JP 17850382 U JP17850382 U JP 17850382U JP S5984625 U JPS5984625 U JP S5984625U
- Authority
- JP
- Japan
- Prior art keywords
- microcomputer
- chip
- circuit
- power supply
- supply abnormality
- 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
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (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図は本考案の一実施例によるチップ内回路区である
。第２図は本考案の他の実施例によるチップ回路図であ
る。−
１，８・・・・・・マイクロコンピュータチップ、２・
・・・・・内ｉＲＡＭ、レジスタ等メモリ回路、３．９
・・・・・・電源断検出回路、４・・・・・・メモリ選
択信号、５・・・・・・プログラムによる選択信号、６
．１０・・曲電源断検出信号、７・・・・・・アンド回
路、１１・・・・・・内部制御回路、１２・・・・・・
外部メモリツク゛ツクアップ制御回路。FIG. 1 shows a circuit section within a chip according to an embodiment of the present invention. FIG. 2 is a chip circuit diagram according to another embodiment of the present invention. - 1,8...Microcomputer chip, 2.
...Memory circuits such as iRAM and registers, 3.9
...Power failure detection circuit, 4...Memory selection signal, 5...Selection signal by program, 6
．． 10... Song power cutoff detection signal, 7... AND circuit, 11... Internal control circuit, 12...
External memory pickup control circuit.
Claims (1)
クロコンピュータにおいて、前記チップ上に電源異常検
出回路を設け、この電源異常信号を用いて前記メモリ回
路への選択信号を非活性化する回路配線をチップ内部に
施し、たことを特徴とするマイクロコンピュータ。゛In a microcomputer that has a writable memory circuit on the same chip, a power supply abnormality detection circuit is provided on the chip, and circuit wiring for deactivating a selection signal to the memory circuit using this power supply abnormality signal is installed inside the chip. A microcomputer characterized by the following features:゛
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17850382U JPS5984625U (en) | 1982-11-26 | 1982-11-26 | microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17850382U JPS5984625U (en) | 1982-11-26 | 1982-11-26 | microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5984625U true JPS5984625U (en) | 1984-06-07 |
Family
ID=30387531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17850382U Pending JPS5984625U (en) | 1982-11-26 | 1982-11-26 | microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5984625U (en) |
-
1982
- 1982-11-26 JP JP17850382U patent/JPS5984625U/en active Pending
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