JPS6423489A - Charging circuit - Google Patents

Charging circuit

Info

Publication number
JPS6423489A
JPS6423489A JP62178976A JP17897687A JPS6423489A JP S6423489 A JPS6423489 A JP S6423489A JP 62178976 A JP62178976 A JP 62178976A JP 17897687 A JP17897687 A JP 17897687A JP S6423489 A JPS6423489 A JP S6423489A
Authority
JP
Japan
Prior art keywords
vdd
charged
data line
2vth
terminal
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
Application number
JP62178976A
Other languages
Japanese (ja)
Inventor
Fumio Shioda
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62178976A priority Critical patent/JPS6423489A/en
Publication of JPS6423489A publication Critical patent/JPS6423489A/en
Pending legal-status Critical Current

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  • Dram (AREA)

Abstract

PURPOSE:To set the initial voltage value so as to operate a sense amplifier at high speed by inserting a MOSFET between a charge switch and a data line and lowering a charge voltage. CONSTITUTION:At the time of bringing a control terminal 4 to a high level, the NMOSFETs 1 and 2 and 5 are turned and the source terminal of an FET 1 is charged to VDD-VTH. Then, the data line 6 is charged to VDD-2VTH by the NMOSFET 8, similarly, the source terminal of a FET 2 is charged to VDD-VTH and the data line 7 is charged to VDD-2VTH by the NMOSFET 9. At the time of bringing the terminal 4 to a low level, the FETs 1, 2, and 5 are turned off and the data line 6 and 7 are brought into a high impedance state to maintain the potential of VDD-2VTH.
JP62178976A 1987-07-20 1987-07-20 Charging circuit Pending JPS6423489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62178976A JPS6423489A (en) 1987-07-20 1987-07-20 Charging circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62178976A JPS6423489A (en) 1987-07-20 1987-07-20 Charging circuit

Publications (1)

Publication Number Publication Date
JPS6423489A true JPS6423489A (en) 1989-01-26

Family

ID=16057943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62178976A Pending JPS6423489A (en) 1987-07-20 1987-07-20 Charging circuit

Country Status (1)

Country Link
JP (1) JPS6423489A (en)

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