JPS6442850A - On-chip substrate voltage generating circuit - Google Patents
On-chip substrate voltage generating circuitInfo
- Publication number
- JPS6442850A JPS6442850A JP62200207A JP20020787A JPS6442850A JP S6442850 A JPS6442850 A JP S6442850A JP 62200207 A JP62200207 A JP 62200207A JP 20020787 A JP20020787 A JP 20020787A JP S6442850 A JPS6442850 A JP S6442850A
- Authority
- JP
- Japan
- Prior art keywords
- voltage generating
- generating circuit
- clock
- circuits
- 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
- 239000000758 substrate Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 230000007423 decrease Effects 0.000 abstract 1
Landscapes
- Dram (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
PURPOSE:To prevent the extreme increase in power supply current as well as the decline in the operational margin from occurring even in high operational frequency by a method wherein clock frequency detecting circuits and negative voltage generating circuits are combined with one another to be used in multiple pairs. CONSTITUTION:The title voltage generating circuit is composed of two clock frequency detecting circuits D1 and D2, and three negative voltage generating circuits G0, G1 and G2. In such a constitution, the clock frequency detecting circuits D1 and D2 perform the function to output '1' level to their output terminals whenever the frequency f of chip driving signal CE respectively exceed f1 and f2. Furthermore, when a control terminal ai (i=0-2) in a negative generating circuit Gi (i=0-2) is impressed with '1' level (power supply level), a clock generated by a clock generator 21 is impressed on a voltage generator 22 to generate a negative voltage at the output terminal bi (i=0-2) thereof. Through these procedures, the substrate voltage Vsub can be generated stably up to high operational frequency f.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62200207A JPS6442850A (en) | 1987-08-10 | 1987-08-10 | On-chip substrate voltage generating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62200207A JPS6442850A (en) | 1987-08-10 | 1987-08-10 | On-chip substrate voltage generating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6442850A true JPS6442850A (en) | 1989-02-15 |
Family
ID=16420587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62200207A Pending JPS6442850A (en) | 1987-08-10 | 1987-08-10 | On-chip substrate voltage generating circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6442850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5744996A (en) * | 1992-07-01 | 1998-04-28 | International Business Machines Corporation | CMOS integrated semiconductor circuit |
| JP2009181638A (en) * | 2008-01-30 | 2009-08-13 | Elpida Memory Inc | Semiconductor storage device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58105563A (en) * | 1981-12-17 | 1983-06-23 | Mitsubishi Electric Corp | Substrate bias generation circuit |
-
1987
- 1987-08-10 JP JP62200207A patent/JPS6442850A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58105563A (en) * | 1981-12-17 | 1983-06-23 | Mitsubishi Electric Corp | Substrate bias generation circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5744996A (en) * | 1992-07-01 | 1998-04-28 | International Business Machines Corporation | CMOS integrated semiconductor circuit |
| JP2009181638A (en) * | 2008-01-30 | 2009-08-13 | Elpida Memory Inc | Semiconductor storage device |
| US7974140B2 (en) | 2008-01-30 | 2011-07-05 | Elpida Memory, Inc. | Semiconductor device having a mode register and a plurality of voltage generators |
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