[go: up one dir, main page]

JPS54111863A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS54111863A
JPS54111863A JP1872478A JP1872478A JPS54111863A JP S54111863 A JPS54111863 A JP S54111863A JP 1872478 A JP1872478 A JP 1872478A JP 1872478 A JP1872478 A JP 1872478A JP S54111863 A JPS54111863 A JP S54111863A
Authority
JP
Japan
Prior art keywords
input
output
circuit
fets
fet
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.)
Granted
Application number
JP1872478A
Other languages
Japanese (ja)
Other versions
JPS6238671B2 (en
Inventor
Yukio Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP1872478A priority Critical patent/JPS54111863A/en
Publication of JPS54111863A publication Critical patent/JPS54111863A/en
Publication of JPS6238671B2 publication Critical patent/JPS6238671B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electric Clocks (AREA)

Abstract

PURPOSE: To reduce the increase in the area of integrated circuits and the difficulty in packaging by constituting an input-output end circuit with CMOS-FETs and letting one terminal be input-output terminals thereby enabling input end circuit and output end circuit to be performed simultaneously.
CONSTITUTION: An input-output circuit 48 consists of an input-output terminal, inverter circuits 45, 46 constituted by N channel MOS-FETs 42, 43, 44 and CMOS- FETs and an AND circuit 47. The FET 42 is used as a high resistance. On end of a suitable element R is connected to the input-output terminal 4 and a potential Vss2 slightly higher than the low potential of the supply voltage is connected to the other end, at which time ϕ1 is outputted in the AND circuit 47 output and the FET 44 is turned ON and OFF according to the signal ϕ1, thus the signal ϕ1 may be detected while the low potential is being outputted in the line ϕ2.
COPYRIGHT: (C)1979,JPO&Japio
JP1872478A 1978-02-21 1978-02-21 Electronic watch Granted JPS54111863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1872478A JPS54111863A (en) 1978-02-21 1978-02-21 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1872478A JPS54111863A (en) 1978-02-21 1978-02-21 Electronic watch

Publications (2)

Publication Number Publication Date
JPS54111863A true JPS54111863A (en) 1979-09-01
JPS6238671B2 JPS6238671B2 (en) 1987-08-19

Family

ID=11979604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1872478A Granted JPS54111863A (en) 1978-02-21 1978-02-21 Electronic watch

Country Status (1)

Country Link
JP (1) JPS54111863A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5162070A (en) * 1974-11-28 1976-05-29 Suwa Seikosha Kk DENSHISHIKITOKEI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5162070A (en) * 1974-11-28 1976-05-29 Suwa Seikosha Kk DENSHISHIKITOKEI

Also Published As

Publication number Publication date
JPS6238671B2 (en) 1987-08-19

Similar Documents

Publication Publication Date Title
JPS5786190A (en) Semiconductor device
JPS5373340A (en) Abnormal voltage detection circuit
JPS5625290A (en) Semiconductor circuit
JPS5552611A (en) Constant-current circuit
JPS54111863A (en) Electronic watch
JPS57140029A (en) Output circuit
JPS5412539A (en) Integrating circuit
JPS5791029A (en) Power-on reset circuit
JPS533767A (en) Input-output-insulation circuit using photocoupler
JPS5544238A (en) Signal switching circuit
JPS5623022A (en) Schmitt trigger circuit
JPS5239156A (en) High voltage generating circuit
JPS5516540A (en) Pulse detection circuit
JPS5310046A (en) Electronic circuit
JPS5539056A (en) Main voltage detecting circuit
JPS5711537A (en) Logical circuit
JPS5280789A (en) Hole element
JPS55163461A (en) Absolute value detection circuit
JPS5679522A (en) Cmos schmitt trigger circuit
JPS548861A (en) Constant voltage circuit
JPS5482128A (en) Input circuit
JPS53116451A (en) Constant voltage circuit
JPS53132750A (en) Constant voltage circuit
JPS5730412A (en) Voltage comparison circuit
JPS547557A (en) Constant current circuit