JPS6423489A - Charging circuit - Google Patents
Charging circuitInfo
- 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
Links
Landscapes
- 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.
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) |
-
1987
- 1987-07-20 JP JP62178976A patent/JPS6423489A/en active Pending
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