JPS5863636U - switch input circuit - Google Patents
switch input circuitInfo
- Publication number
- JPS5863636U JPS5863636U JP15735081U JP15735081U JPS5863636U JP S5863636 U JPS5863636 U JP S5863636U JP 15735081 U JP15735081 U JP 15735081U JP 15735081 U JP15735081 U JP 15735081U JP S5863636 U JPS5863636 U JP S5863636U
- Authority
- JP
- Japan
- Prior art keywords
- rom
- output
- input circuit
- group
- switch
- 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
- Input From Keyboards Or The Like (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図は公知のスイッチ入力回路を示すブロック線図、
第2図は本考案の一実施例を示すブロック線図、第3図
は第2図のスイッチとROMの出力との関係を示す図で
ある。
IA・・・A群スイッチ、1B・・・B群スイッチ、2
A・・・A群の抵抗群、2B・・・B群の抵抗群、3A
。
3B・・・ROM、4・・・バッファ、5A・・・出力
A05.6・・・計算機、7・・・A SEL信号。FIG. 1 is a block diagram showing a known switch input circuit.
FIG. 2 is a block diagram showing an embodiment of the present invention, and FIG. 3 is a diagram showing the relationship between the switch shown in FIG. 2 and the output of the ROM. IA...A group switch, 1B...B group switch, 2
A... resistance group of group A, 2B... resistance group of group B, 3A
. 3B...ROM, 4...Buffer, 5A...Output A05.6...Computer, 7...A SEL signal.
Claims (1)
チと、A群のスイッチ入力がそれぞれアドレス入力に接
続されたROM Aと、B群のスイッチ入力がそれぞ
れアドレス入力に接続されたROM Bとを具え、上
記ROM A、ROM Bの一方の出力線のうちの
1つを互いに他方のROMの出力禁止入力に接続し、上
記各群スイッチのうちの1つのスイッチがONのときこ
れを識別する出力を上記各ROMが出力し、他のすべて
のスイッチ入力の出力することを禁止するようにしたこ
とを特徴とするスイッチ入力回路。It includes switches A and 82 groups each containing a plurality of switches, a ROM A in which the switch inputs of group A are connected to address inputs, and a ROM B in which switch inputs of group B are connected to address inputs. , connect one of the output lines of the ROM A and ROM B to the output inhibit input of the other ROM, and output an output that identifies when one of the switches in each group is ON. A switch input circuit characterized in that each of the above ROMs outputs an output and all other switch inputs are prohibited from outputting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15735081U JPS5863636U (en) | 1981-10-22 | 1981-10-22 | switch input circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15735081U JPS5863636U (en) | 1981-10-22 | 1981-10-22 | switch input circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5863636U true JPS5863636U (en) | 1983-04-28 |
Family
ID=29949878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15735081U Pending JPS5863636U (en) | 1981-10-22 | 1981-10-22 | switch input circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5863636U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61184716U (en) * | 1985-05-08 | 1986-11-18 |
-
1981
- 1981-10-22 JP JP15735081U patent/JPS5863636U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61184716U (en) * | 1985-05-08 | 1986-11-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5863636U (en) | switch input circuit | |
JPS596203U (en) | Intermediate value analog signal selection circuit | |
JPS6066140U (en) | Antenna sharing device | |
JPS5996983U (en) | Signal selection scanning circuit | |
JPS6446862U (en) | ||
JPS58101234U (en) | Redundant interface circuit | |
JPS60104942U (en) | Maximum or minimum value detection device | |
JPS58170100U (en) | memory device | |
JPS5846193U (en) | logic input circuit | |
JPS60163820U (en) | limiter device | |
JPS5871835U (en) | Signal line switching circuit | |
JPS5937633U (en) | printer with keyboard | |
JPS59122625U (en) | Error detection circuit for digital input device | |
JPS5897638U (en) | Bus type data input circuit | |
JPS58101246U (en) | Analog signal selection processing device | |
JPS60109133U (en) | semiconductor integrated circuit | |
JPS61133833U (en) | ||
JPS5963742U (en) | Computer input/output device | |
JPS6146623U (en) | keyboard interface device | |
JPH01133646U (en) | ||
JPS5953446U (en) | distributed keyboard | |
JPS6355642U (en) | ||
JPS59154679U (en) | Printed circuit board with self-inspection function | |
JPS5939586U (en) | line exchange | |
JPS58190704U (en) | multiplex control device |