JPS6432490A - Control circuit for dynamic memory - Google Patents
Control circuit for dynamic memoryInfo
- Publication number
- JPS6432490A JPS6432490A JP62187273A JP18727387A JPS6432490A JP S6432490 A JPS6432490 A JP S6432490A JP 62187273 A JP62187273 A JP 62187273A JP 18727387 A JP18727387 A JP 18727387A JP S6432490 A JPS6432490 A JP S6432490A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- gate
- control circuit
- dynamic memory
- high level
- 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
Abstract
PURPOSE:To simplify the constitution of the whole of a control circuit by sharing a part of a circuit for data read/write and hidden refresh. CONSTITUTION:When a flag signal HF is set to the low level, an AND gate 3 is closed as it is; and meanwhile, a signal RAS is outputted from a NOR gate 6 because an AND gate 2 is opened only when a signal t1 is in the high level and a signal t2 is in the low level. When the flag signal HF is set to the high level, the signal RAS is outputted from the NOR gate 6 because the AND gate 3 is opened when a signal t3 is in the high level and a signal t4 is in the low level. Thus, the signal RAS used for data read/write and hidden refresh is generated with the simple circuit of opening/closing of one AND gate 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187273A JPS6432490A (en) | 1987-07-27 | 1987-07-27 | Control circuit for dynamic memory |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187273A JPS6432490A (en) | 1987-07-27 | 1987-07-27 | Control circuit for dynamic memory |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432490A true JPS6432490A (en) | 1989-02-02 |
Family
ID=16203105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62187273A Pending JPS6432490A (en) | 1987-07-27 | 1987-07-27 | Control circuit for dynamic memory |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432490A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0729399U (en) * | 1993-12-24 | 1995-06-02 | 三菱重工業株式会社 | Split type heat insulation device for nuclear power plant piping |
-
1987
- 1987-07-27 JP JP62187273A patent/JPS6432490A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0729399U (en) * | 1993-12-24 | 1995-06-02 | 三菱重工業株式会社 | Split type heat insulation device for nuclear power plant piping |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2012668A1 (en) | Four transistor static ram cell | |
KR910003662A (en) | Dynamic random access memory and its data recording method | |
JPS6488662A (en) | Semiconductor memory | |
WO1986006538A3 (en) | Memory control circuit permitting microcomputer system to utilize static and dynamic rams | |
JPS6432490A (en) | Control circuit for dynamic memory | |
JPS55101185A (en) | Semiconductor memory device | |
JPS5427734A (en) | Dynamic semiconductor memory | |
JPS56137580A (en) | Semiconductor storage device | |
JPS5443630A (en) | Memory access control system | |
JPS5231626A (en) | Magnetic bubble cassette memory | |
DE3878784D1 (en) | SEMICONDUCTOR MEMORY WITH A SIGNAL CHANGE DETECTION CIRCUIT. | |
JPS5558893A (en) | Memory circuit | |
JPS57123596A (en) | Semiconductor storage circuit device | |
JPS6479792A (en) | Memory | |
JPS5611685A (en) | Refresh system | |
JPS5724093A (en) | Memory cell | |
JPS5799854A (en) | Master error editing system | |
JPS5712498A (en) | Integrated circuit device for memory | |
JPS647140A (en) | Address generating circuit | |
KR950002098Y1 (en) | Self-timing control precharge circuit | |
JPS5774887A (en) | Associative memory device | |
JPS5693174A (en) | Mos random access memory | |
JPS5712496A (en) | Integrated circuit device for memory | |
JPS5715297A (en) | Memory element | |
JPS5622286A (en) | Dynamic memory control system |