JPS6413292A - Dynamic type storage device - Google Patents
Dynamic type storage deviceInfo
- Publication number
- JPS6413292A JPS6413292A JP62169038A JP16903887A JPS6413292A JP S6413292 A JPS6413292 A JP S6413292A JP 62169038 A JP62169038 A JP 62169038A JP 16903887 A JP16903887 A JP 16903887A JP S6413292 A JPS6413292 A JP S6413292A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- ras
- sref
- inverse
- 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
Links
Landscapes
- Dram (AREA)
Abstract
PURPOSE:To enable an efficient and general useful SREF function to be loaded by executing self-refreshment (SREF) with the phase timing and the voltage of an inversion RAS and an inversion CAS input signal. CONSTITUTION:By making the inverse CAS input signal 2 to be L and making the inverse of RAS input signal to be L after delay time (tD), a basic clock phiOSC11 asynchronously generating an RAS signal inside is generated by the SREF control circuit 3 when the circuit 3 receives a self-refreshment demand and starts an oscillation circuit 4 and the signal phiOSCD12 of a cycle T is generated through a frequency devider circuit 5. The signal phiOSCD12 is wave-formed by a control circuit 7 for generating an internal RAS. Then a pulse width is optimized and an inversion RASI14 is generated. After receiving the SREF operation demand based on the phase and the voltage conditions of the inverse RAS and the inverse of CAS signal, the circuit 5 receives the signal of T/2, inputs it to an external RAS circuit control circuit 6, resets the output signal inverse RASO13 of the circuit 6, executes latch and controls an internal RAS signal to repeatedly execute REF operation. A signal IntRAS15 starts an internal address counter control circuit 8 and executes the SREF through an internal address counter circuit 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62169038A JPH061634B2 (en) | 1987-07-07 | 1987-07-07 | Dynamic storage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62169038A JPH061634B2 (en) | 1987-07-07 | 1987-07-07 | Dynamic storage |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4015990A Division JP2563715B2 (en) | 1992-01-31 | 1992-01-31 | Dynamic storage |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6413292A true JPS6413292A (en) | 1989-01-18 |
JPH061634B2 JPH061634B2 (en) | 1994-01-05 |
Family
ID=15879162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62169038A Expired - Lifetime JPH061634B2 (en) | 1987-07-07 | 1987-07-07 | Dynamic storage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH061634B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH023151A (en) * | 1988-06-16 | 1990-01-08 | Fujitsu Ltd | Dynamic random access memory device |
US5554953A (en) * | 1992-10-07 | 1996-09-10 | Matsushita Electric Industrial Co., Ltd. | Internal reduced-voltage generator for semiconductor integrated circuit |
US5828619A (en) * | 1995-04-18 | 1998-10-27 | Matsushita Electric Industrial Co., Ltd. | Semiconductor memory device |
US6122214A (en) * | 1998-03-23 | 2000-09-19 | Matsushita Electric Industrial Co., Ltd. | Semiconductor memory |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59129987A (en) * | 1983-01-14 | 1984-07-26 | Nec Corp | Semiconductor memory |
JPS629591A (en) * | 1985-07-08 | 1987-01-17 | Nec Corp | Mos dynamic ram |
JPS6212991A (en) * | 1985-07-10 | 1987-01-21 | Fujitsu Ltd | Semiconductor memory device |
JPS63106991A (en) * | 1986-10-24 | 1988-05-12 | Nec Corp | Memory integrated circuit |
JPS63106992A (en) * | 1986-10-24 | 1988-05-12 | Nec Corp | Memory integrated circuit |
-
1987
- 1987-07-07 JP JP62169038A patent/JPH061634B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59129987A (en) * | 1983-01-14 | 1984-07-26 | Nec Corp | Semiconductor memory |
JPS629591A (en) * | 1985-07-08 | 1987-01-17 | Nec Corp | Mos dynamic ram |
JPS6212991A (en) * | 1985-07-10 | 1987-01-21 | Fujitsu Ltd | Semiconductor memory device |
JPS63106991A (en) * | 1986-10-24 | 1988-05-12 | Nec Corp | Memory integrated circuit |
JPS63106992A (en) * | 1986-10-24 | 1988-05-12 | Nec Corp | Memory integrated circuit |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH023151A (en) * | 1988-06-16 | 1990-01-08 | Fujitsu Ltd | Dynamic random access memory device |
US5554953A (en) * | 1992-10-07 | 1996-09-10 | Matsushita Electric Industrial Co., Ltd. | Internal reduced-voltage generator for semiconductor integrated circuit |
US5828619A (en) * | 1995-04-18 | 1998-10-27 | Matsushita Electric Industrial Co., Ltd. | Semiconductor memory device |
US6122214A (en) * | 1998-03-23 | 2000-09-19 | Matsushita Electric Industrial Co., Ltd. | Semiconductor memory |
Also Published As
Publication number | Publication date |
---|---|
JPH061634B2 (en) | 1994-01-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5557181A (en) | Electronic watch | |
JPS6413292A (en) | Dynamic type storage device | |
US4857868A (en) | Data driven clock generator | |
JPS5644392B2 (en) | ||
KR920015744A (en) | O-phase restart compensation circuit for voltage controlled oscillator (VCO) and its method | |
FR2279254A1 (en) | High frequency thyristor generator for ultrasonic atomiser - has thyristor triggered from subharmonic of crystal oscillator | |
US4604536A (en) | Timing circuits | |
FR2264427B1 (en) | ||
ES383261A1 (en) | Phase locked oscillators | |
JPS5680931A (en) | Frequency dividing circuit | |
JPS5556497A (en) | Stepping motor control circuit | |
JPS55417A (en) | Frequency comparator circuit | |
JPS55134541A (en) | Phase synchronous oscillator | |
KR100206901B1 (en) | Negative delay apparatus of pulse | |
SU479244A1 (en) | Linear Pulse Frequency Converter | |
SU129671A1 (en) | Frequency divider | |
SU450320A1 (en) | Multivibrator | |
SU436433A1 (en) | GENERATOR RECTANGULAR PULSES | |
SU428559A1 (en) | FREQUENCY DIVIDER | |
KR970008179A (en) | Refresh generation circuit | |
JPS5568742A (en) | Phase lock oscillator circuit | |
KR940020419A (en) | Self-Refresh Circuit | |
JPS54157461A (en) | Self-oscillator circuit | |
SALEM | Formal verification of digital circuits described in VHDL(Verification formelle des circuits digitaux decrits en VHDL)(Ph. D. Thesis) | |
JPH0284441U (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080105 Year of fee payment: 14 |