JPS57141133A - Counter - Google Patents
CounterInfo
- Publication number
- JPS57141133A JPS57141133A JP56027151A JP2715181A JPS57141133A JP S57141133 A JPS57141133 A JP S57141133A JP 56027151 A JP56027151 A JP 56027151A JP 2715181 A JP2715181 A JP 2715181A JP S57141133 A JPS57141133 A JP S57141133A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- mos
- input
- circuits
- input signal
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE:To reduce the power consumption of a device, by composing an input signal circuit, a counting circuit, a display circuit, and an output driving circuit all of C-MOS circuits. CONSTITUTION:A counting circuit, an input signal circuit, a display circuit, and an output driving circuit are all composed of C-MOS circuits, which are supplied with electric power from a built-in battery 13 to drive a liquid-crystal display device by the display circuit. Further, an input circuit composed of a C-MOS element 15 and a high resistance 14 is connected between an input terminal and the input signal circuit, and an open-drain MOS element 16 is connected between the output driving circuit and an output terminal. Consequently, the internal circuits are all composed of the C-MOS circuits and the display device and liquid-crystal display device are both used, so power consumption is less. Further, diodes 11 and 12 for reverse current prevention and the MOS element 16 are added, so a battery current is prevented from flowing out of the input and output terminals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56027151A JPS57141133A (en) | 1981-02-26 | 1981-02-26 | Counter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56027151A JPS57141133A (en) | 1981-02-26 | 1981-02-26 | Counter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57141133A true JPS57141133A (en) | 1982-09-01 |
Family
ID=12213040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56027151A Pending JPS57141133A (en) | 1981-02-26 | 1981-02-26 | Counter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57141133A (en) |
-
1981
- 1981-02-26 JP JP56027151A patent/JPS57141133A/en active Pending
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