JPH0366418U - - Google Patents
Info
- Publication number
- JPH0366418U JPH0366418U JP12698889U JP12698889U JPH0366418U JP H0366418 U JPH0366418 U JP H0366418U JP 12698889 U JP12698889 U JP 12698889U JP 12698889 U JP12698889 U JP 12698889U JP H0366418 U JPH0366418 U JP H0366418U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- selection signal
- sent
- supply voltage
- entire system
- 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
- 238000010586 diagram Methods 0.000 description 4
- 240000000220 Panda oleosa Species 0.000 description 2
- 235000016496 Panda oleosa Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Power Sources (AREA)
- Calculators And Similar Devices (AREA)
Description
第１図は、本考案の一実施例の回路構成を示す
図、第２図は、第１図中のＲＡＭの一部の構成を
示す図、第３図は本実施例の外観を示す図、第４
図は、本実施例の変換処理動作を示すフローチヤ
ート、第５図はチツプイネーブル信号と電源電圧
の変化の関係を示す図、第６図は、キー操作に伴
なう液晶表示パネルの表示変遷を示す図である。
１……制御部、２……ＲＯＭ、３……漢字ＲＯ
Ｍ、４……電池、５……電源電圧切替回路、６…
…発振回路、７……分周回路、８……キー入力部
、９……ＲＡＭ、１０……デコーダ・ドライバ、
１１……表示部、１５……液晶表示パネル、１６
……かな入力キー、１７……かな入力キー部、Ｃ
Ｅ……チツプイネーブル信号、ＤＲ……表示レジ
スタ、ＴＲ……現在時刻レジスタ、Ｍ……モード
レジスタ、ＤＢ……データバンク部、ＳＭ……モ
ードキー、ＳＥＸ……変換キー。
FIG. 1 is a diagram showing the circuit configuration of an embodiment of the present invention, FIG. 2 is a diagram showing the configuration of a part of the RAM in FIG. 1, and FIG. 3 is a diagram showing the external appearance of this embodiment. , 4th
The figure is a flowchart showing the conversion processing operation of this embodiment, Figure 5 is a diagram showing the relationship between the chip enable signal and the change in power supply voltage, and Figure 6 is the display change on the liquid crystal display panel due to key operation. FIG. 1...Control unit, 2...ROM, 3...Kanji RO
M, 4... Battery, 5... Power supply voltage switching circuit, 6...
...Oscillation circuit, 7...Frequency divider circuit, 8...Key input section, 9...RAM, 10...Decoder driver,
11...Display section, 15...Liquid crystal display panel, 16
...Kana input key, 17...Kana input key part, C
E...Chip enable signal, DR...Display register, TR...Current time register, M...Mode register, DB...Data bank section, SM...Mode key, SEX...Conversion key.
Claims (1)
部と、 システム全体に電源を供給する電源部と、 システム全体を制御する制御回路部と、 この制御回路部から上記複数の記憶回路部のい
ずれかに選択信号が送られたときに、該選択信号
に基づき上記電源部が供給する電源電圧を、該選
択信号が送られる記憶回路の動作電圧に切替える
電源電圧切替回路とを備えることを特徴とする電
子機器。[Claims for Utility Model Registration] A plurality of memory circuit units used at different operating voltages; a power supply unit that supplies power to the entire system; a control circuit unit that controls the entire system; a power supply voltage switching circuit that, when a selection signal is sent to one of the storage circuit units, switches the power supply voltage supplied by the power supply unit based on the selection signal to the operating voltage of the storage circuit to which the selection signal is sent; An electronic device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12698889U JPH0366418U (en) | 1989-10-30 | 1989-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12698889U JPH0366418U (en) | 1989-10-30 | 1989-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366418U true JPH0366418U (en) | 1991-06-27 |
Family
ID=31674773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12698889U Pending JPH0366418U (en) | 1989-10-30 | 1989-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366418U (en) |
-
1989
- 1989-10-30 JP JP12698889U patent/JPH0366418U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH03202912A (en) | Portable electronic device | |
| US4271404A (en) | Power supply controller in a keyboard-equipped apparatus such as an electronic calculator | |
| JPH0366418U (en) | ||
| JPH0366414U (en) | ||
| JPH0441384Y2 (en) | ||
| JPH05303446A (en) | Electronic data processor | |
| JP2530719Y2 (en) | Power supply | |
| JPS6025612Y2 (en) | random number generator | |
| JPS623754Y2 (en) | ||
| JP2596101Y2 (en) | Electronic equipment with communication function | |
| JPS5848626Y2 (en) | display device | |
| JPS6017000Y2 (en) | Electronic device with pronunciation function | |
| JPH04262292A (en) | Dual-selection system of reference frequency for time piece | |
| JPS5918515Y2 (en) | Electronics | |
| JPH02113787U (en) | ||
| JPH0313526U (en) | ||
| JPS6320092U (en) | ||
| KR870004381A (en) | Portable electronic memo handler | |
| JPS60174023A (en) | Power source supplying device | |
| JPH05333977A (en) | Low power consumption type electronic equipment | |
| JPS6331394U (en) | ||
| JPS5730191A (en) | Memory refreshment system | |
| JPH02108160U (en) | ||
| JPS6446852U (en) | ||
| JPS6184939U (en) |