CN1519855A - Storage device possessing electricity saving mode and electronic equipment using storage device possessing electricity saving mode - Google Patents
Storage device possessing electricity saving mode and electronic equipment using storage device possessing electricity saving mode Download PDFInfo
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- CN1519855A CN1519855A CNA031008410A CN03100841A CN1519855A CN 1519855 A CN1519855 A CN 1519855A CN A031008410 A CNA031008410 A CN A031008410A CN 03100841 A CN03100841 A CN 03100841A CN 1519855 A CN1519855 A CN 1519855A
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Abstract
The storage device includes a storage unit setup in an electronic device. Based on an input voltage, the electronic device possessing a voltage of power source accesses a corresponding data. The said storage unit includes at least an input buffer, a decoder, a data array in storage, an output buffer and a DC voltage generator. The DC voltage generator generates multiple prearranged voltages supplying to the said input buffer, decoder, data array in storage, and output buffer. The voltage detection unit is utilized to detect voltages at the said electronic devices. When voltage of power source is lower than a prearranged voltage, a disable signal is output in order to shut down the said input buffer and output buffer so as to reduce power waste.
Description
Technical field
The invention relates to a kind of storage arrangement, particularly relevant for a kind of storage arrangement with battery saving mode.
Background technology
In general, electronic installation such as mobile phone, individual digital secretary PDA or the like all need storage arrangement depositing program or data, and see through electric capacity or reserve battery keeps stored program of storage arrangement or data.Along with the increase of electronic apparatus functions, if the data of the required maintenance of institute's memory device the more when the electric power of battery is too low, if can not reduce the power consumption of storage arrangement, before not changing battery or charging, then may lose stored data.
Therefore if can provide a storer with battery saving mode to be arranged in the electronic installation, and when the power shortage of electronic installation, the electric weight that lowers consumption automatically is with service time of prolongation electronic installation, or retention time of storage data in the storage arrangement.
Summary of the invention
In view of this, primary and foremost purpose of the present invention is to provide a kind of storage arrangement with battery saving mode to come auxiliary electronic device when power shortage, reduces power consumption, to prolong the retention time of data in the storer.
According to above-mentioned purpose, the invention provides a kind of storage arrangement with battery saving mode, comprise a memory cell, be arranged in the electronic installation, above-mentioned electronic installation has a supply voltage, in order to according to an input signal, and access one corresponding data, above-mentioned memory cell comprises an input buffer at least, in order to temporary above-mentioned input signal; One code translator couples above-mentioned input buffer, according to above-mentioned input signal, exports a position signalling and an access signal; One memory array couples above-mentioned code translator, according to above-mentioned position signalling and access signal, reads or write above-mentioned corresponding data; One output state couples above-mentioned memory array, in order to temporary above-mentioned corresponding data; And a direct current voltage generator, have the plural set voltage of high voltage level in order to generation, and the plural set voltage with low-voltage position standard, be supplied to above-mentioned input buffer, above-mentioned code translator, above-mentioned memory array and above-mentioned output state; And a detecting voltage unit, in order to detect the supply voltage of above-mentioned electronic installation, when above-mentioned supply voltage is lower than a set value, export a disable signal, to close above-mentioned input buffer and output state.
The invention provides a kind of electronic installation and comprise an electronics, have a supply voltage, and export a control signal with access one corresponding data with storer of battery saving mode; And the storage arrangement with battery saving mode, be coupled to above-mentioned electronics, as mentioned above, wherein when the supply voltage of electronic installation is lower than a set value, export a disable signal, with forbidden energy input buffer and output state, or cause the DC voltage generator with the accurate reduction in the position of the complex number voltage of output, to reduce power consumption.
Description of drawings
Fig. 1 is the synoptic diagram with storage arrangement of battery saving mode of the present invention;
Fig. 2 is the synoptic diagram of the electronic installation of the storer with battery saving mode of the present invention.
The figure number explanation:
10: storage arrangement with battery saving mode; 110: input buffer;
120: latch circuit; 130: code translator;
140: memory array; 150: output state;
160: the DC voltage generator; 170: the detecting voltage unit;
180: electronics.
Embodiment
Be illustrated in figure 1 as a kind of storage arrangement 10, one memory cells 100 and detecting voltage unit 170 of the present invention with battery saving mode.Wherein memory cell 100 includes an input buffer 110, a latch circuit 120, a code translator 130, a memory array 140 and an output state 150 at least.
In general memory cell 100, can be dynamic RAM DRAM or static RAM SRAM, for example 1T-SRAM or LPSRAM or the like.Memory cell 100 is to be arranged at for having in the electronic installation (not being shown in Fig. 1) of a supply voltage, in order to according to an input signal ins, and access one corresponding data.
In addition, in memory cell 100, input buffer 110 is in order to temporary input signal ins, and code translator 130 is coupled to input buffer 110, is according to above-mentioned input signal ins, exports a position signalling and an access signal.And memory array 140 is to be coupled to code translator 130, according to above-mentioned position signalling and access signal, reads or write above-mentioned corresponding data.And output state 150 is coupled to memory array 140, in order to temporary above-mentioned corresponding data.DC voltage generator 160, have a battery saving mode and a normal mode, and generation has the plural set voltage of high voltage level, and the plural set voltage with low-voltage position standard, is supplied to input buffer 110, code translator 130, memory array 140 and output state 150.Wherein when normal mode, the plural set voltage of DC voltage generator 160 output HIGH voltage position standards, and when battery saving mode, the plural set voltage of DC voltage generator 160 output LOW voltage position standards is to input buffer 110, code translator 130, memory array 140 and output state 150.
In addition, between input buffer 110 and code translator 130, can also couple a latch circuit 120, in order to the input signal ins of bolt-lock from input buffer 110.
Detecting voltage unit 170, be input buffer 110, output state 150 and the DC voltage generator 160 that is coupled to memory cell 100, and detecting voltage unit 170 is a programmable voltage detector, the reconnaissance range that is detecting voltage unit 170 is to control by peripheral control unit such as CPU, in order to the supply voltage V of detecting electronic installation
T, as supply voltage V
TWhen being lower than a set value, export an inhibit signal So, to close above-mentioned input buffer 110 and output state 150, so that reduce the power consumption of electronic installation.
Similarly, as supply voltage V
TWhen being lower than above-mentioned set value, disable signal So also can be exported to DC voltage generator 160 in detecting voltage unit 170, cause DC voltage generator 160 to enter battery saving mode, and the plural set voltage of output LOW voltage position standard will export input buffer 110, code translator 130, memory array 140 and output state 150 to, to reduce the power consumption of electronic installation.
When above-mentioned memory cell 100 is a dynamic RAM, then has a set update cycle (reflash cycle), as supply voltage V
TWhen being lower than above-mentioned set value, also can be with the time lengthening of set update cycle of memory cell 100, so that reduce the power consumption of electronic installation.
Be illustrated in figure 2 as a kind of electronic installation 200 of the present invention, comprise the storage arrangement with battery saving mode 10 shown in an electronics 180 and Fig. 1 with storer of battery saving mode.
Wherein electronics 180, have a supply voltage V
T, and export a control signal Sc with access one corresponding data.Electronics is a mobile phone, individual digital secretary PDA for instance, or the out of Memory household electrical appliances or the like, usually electronics 150 all includes a microprocessing unit at least, and other peripheral (not being shown among the figure), for example LCD screen, button, battery or the like of being equipped with.Microprocessing unit is to carry out and data processing in order to carry out program, and battery is in order to above-mentioned supply voltage V to be provided
TGive other device of electronics.
Storage arrangement 10 with battery saving mode is to be coupled to electronics 180, comprises input buffer 110, in order to temporary control signal Sc; Code translator 130 couples input buffer 110, according to control signal Sc, exports a position signalling and an access signal; Memory array 140 couples code translator 130, according to above-mentioned position signalling and access signal, reads or write corresponding data; Output state 150 couples memory array 140, in order to temporary above-mentioned corresponding data; DC voltage generator 160, have a battery saving mode and a normal mode, and generation has the plural set voltage of high voltage level, and the plural set voltage with low-voltage position standard, is supplied to input buffer 110, code translator 130, memory array 140 and output state 150.Wherein when normal mode, the plural set voltage of DC voltage generator 160 output HIGH voltage position standards, and when battery saving mode, the plural set voltage of DC voltage generator 160 output LOW voltage position standards is to input buffer 110, code translator 130, memory array 140 and output state 150.
And detecting voltage unit 160, in order to the supply voltage V of detecting electronics
T, in present embodiment, be the voltage that battery provided of mobile phone or individual digital secretary PDA.As supply voltage V
TWhen being lower than a set value, an inhibit signal So can be exported in the detecting voltage unit, to input buffer 110 and output state 150, with forbidden energy input buffer 110 and output state 150, so that reduce the power consumption of electronic installation.And detecting voltage unit 170 is a programmable voltage detector, and promptly the reconnaissance range of detecting voltage unit 170 is to control by the microprocessing unit CPU of electronics 150.
Or say, as the supply voltage V that battery provided of electronic installation
TWhen being lower than above-mentioned set value, disable signal So also can be exported to DC voltage generator 160 in detecting voltage unit 170, cause DC voltage generator 160 to enter battery saving mode, and the plural set voltage of output LOW voltage position standard will export input buffer 110, code translator 130, memory array 140 and output state 150 to, to reduce the power consumption of electronic installation.
In addition, when the storer with battery saving mode 10 that is coupled to electronics is a dynamic RAM, then has a set update cycle (reflash cycle), as supply voltage V
TWhen being lower than above-mentioned set value, also can be with the time lengthening of set update cycle of memory cell 10, so that reduce the power consumption of electronic installation.
Therefore, the storer with battery saving mode of the present invention, can auxiliary electronic device when power shortage, the electric weight that lowers consumption automatically to be prolonging the service time of electronic installation, or retention time of storage data in the storage arrangement.
Claims (18)
1. storage arrangement with battery saving mode comprises:
One memory cell is arranged in the electronic installation, and above-mentioned electronic installation has a supply voltage, in order to according to an input signal, and access one corresponding data, above-mentioned memory cell comprises at least:
One input buffer is in order to temporary above-mentioned input signal;
One code translator couples above-mentioned input buffer, according to above-mentioned input signal, exports a position signalling and an access signal;
One memory array couples above-mentioned code translator, according to above-mentioned position signalling and access signal, reads or write above-mentioned corresponding data;
One output state couples above-mentioned memory array, in order to temporary above-mentioned corresponding data; And
One direct current voltage generator has the plural set voltage of high voltage level in order to generation, and the plural set voltage with low-voltage position standard, is supplied to above-mentioned input buffer, above-mentioned code translator, above-mentioned memory array and above-mentioned output state; And
A disable signal in order to detect the supply voltage of above-mentioned electronic installation, when above-mentioned supply voltage is lower than a set value, is exported, to close above-mentioned input buffer and output state in one detecting voltage unit.
2. the storage arrangement with battery saving mode according to claim 1, wherein above-mentioned DC voltage generator has a battery saving mode and a normal mode, when above-mentioned normal mode, above-mentioned DC voltage generator is exported the plural set voltage of above-mentioned high voltage level, and when above-mentioned battery saving mode, above-mentioned DC voltage generator is exported the plural set voltage of above-mentioned low-voltage position standard.
3. the storage arrangement with battery saving mode according to claim 2, wherein above-mentioned detecting voltage unit is more when above-mentioned supply voltage is lower than above-mentioned set value, export above-mentioned disable signal to above-mentioned DC voltage generator, cause above-mentioned DC voltage generator to enter above-mentioned battery saving mode, and export the plural set voltage of above-mentioned low-voltage position standard.
4. the storage arrangement with battery saving mode according to claim 3 more comprises a latch circuit, in order to the above-mentioned input signal of bolt-lock.
5. the storage arrangement with battery saving mode according to claim 3, wherein above-mentioned memory cell is a static RAM.
6. the storage arrangement with battery saving mode according to claim 3, wherein above-mentioned memory cell is a dynamic RAM, has a set update cycle.
7. the storage arrangement with battery saving mode according to claim 6, wherein above-mentioned detecting voltage unit is more when above-mentioned supply voltage is lower than above-mentioned set value, cause above-mentioned DC voltage generator, prolong the above-mentioned set update cycle of above-mentioned memory cell.
8. the storage arrangement with battery saving mode according to claim 1, wherein above-mentioned detecting voltage unit are a programmable detecting voltage device.
9. electronic installation with storer of battery saving mode comprises:
One electronics has a supply voltage, and exports a control signal with access one corresponding data; And
One has the storage arrangement of battery saving mode, is coupled to above-mentioned electronics, comprising:
One input buffer is in order to temporary above-mentioned control signal;
One code translator couples above-mentioned input buffer, according to above-mentioned control signal, exports a position signalling and an access signal;
One memory array couples above-mentioned code translator, according to above-mentioned position signalling and access signal, reads or write above-mentioned corresponding data;
One output state couples above-mentioned memory array, in order to temporary above-mentioned corresponding data; And
One direct current voltage generator has the plural set voltage of the accurate position of high voltage in order to generation, and the plural set voltage with the accurate position of low-voltage, is supplied to above-mentioned input buffer, above-mentioned code translator, above-mentioned memory array and above-mentioned output state; And
A disable signal in order to detect above-mentioned supply voltage, when above-mentioned supply voltage is lower than a set value, is exported, to close above-mentioned input buffer and output state in one detecting voltage unit.
10. the electronic installation with storer of battery saving mode according to claim 9, wherein above-mentioned DC voltage generator has a battery saving mode and a normal mode, when above-mentioned normal mode, above-mentioned DC voltage generator is exported the plural set voltage of above-mentioned high voltage level, and when above-mentioned battery saving mode, above-mentioned DC voltage generator is exported the plural set voltage of above-mentioned low-voltage position standard.
11. the electronic installation with storer of battery saving mode according to claim 10, wherein above-mentioned detecting voltage unit is more when above-mentioned supply voltage is lower than above-mentioned set value, export above-mentioned disable signal to above-mentioned DC voltage generator, cause above-mentioned DC voltage generator to enter above-mentioned battery saving mode, and export the plural set voltage of above-mentioned low-voltage position standard.
12. the electronic installation with storer of battery saving mode according to claim 10 more comprises a latch circuit, in order to the above-mentioned input signal of bolt-lock.
13. the electronic installation with storer of battery saving mode according to claim 10, wherein above-mentioned memory device with battery saving mode are changed to a static RAM with battery saving mode.
14. the electronic installation with storer of battery saving mode according to claim 10, wherein above-mentioned memory device with battery saving mode are changed to one and have the dynamic RAM of battery saving mode, and have a set update cycle.
15. the electronic installation with storer of battery saving mode according to claim 14, wherein above-mentioned detecting voltage unit is more when above-mentioned supply voltage is lower than above-mentioned set value, cause above-mentioned DC voltage generator, prolong the above-mentioned set update cycle of storage arrangement with battery saving mode.
16. the electronic installation with storer of battery saving mode according to claim 12, wherein above-mentioned electronics is a mobile phone.
17. the electronic installation with storer of battery saving mode according to claim 12, wherein above-mentioned electronics are an individual digital secretary (PDA).
18. the electronic installation with storer of battery saving mode according to claim 9, wherein above-mentioned detecting voltage unit are a programmable voltage detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031008410A CN1519855A (en) | 2003-01-22 | 2003-01-22 | Storage device possessing electricity saving mode and electronic equipment using storage device possessing electricity saving mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031008410A CN1519855A (en) | 2003-01-22 | 2003-01-22 | Storage device possessing electricity saving mode and electronic equipment using storage device possessing electricity saving mode |
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|---|---|
| CN1519855A true CN1519855A (en) | 2004-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031008410A Pending CN1519855A (en) | 2003-01-22 | 2003-01-22 | Storage device possessing electricity saving mode and electronic equipment using storage device possessing electricity saving mode |
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| CN (1) | CN1519855A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101377710B (en) * | 2007-08-30 | 2011-03-23 | 株式会社日立制作所 | Storage system and power consumption reduction method for the same |
| CN102306046A (en) * | 2010-05-05 | 2012-01-04 | 美国博通公司 | Memory power manager |
| CN103718618A (en) * | 2011-09-12 | 2014-04-09 | 苹果公司 | Monitoring battery in portable electronic device |
| CN106409333A (en) * | 2011-07-21 | 2017-02-15 | 瑞萨电子株式会社 | Semiconductor device |
-
2003
- 2003-01-22 CN CNA031008410A patent/CN1519855A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101377710B (en) * | 2007-08-30 | 2011-03-23 | 株式会社日立制作所 | Storage system and power consumption reduction method for the same |
| CN102306046A (en) * | 2010-05-05 | 2012-01-04 | 美国博通公司 | Memory power manager |
| CN102306046B (en) * | 2010-05-05 | 2015-01-21 | 美国博通公司 | Method for controlling power in memory controller and memory controller |
| CN106409333A (en) * | 2011-07-21 | 2017-02-15 | 瑞萨电子株式会社 | Semiconductor device |
| CN106409333B (en) * | 2011-07-21 | 2019-06-14 | 瑞萨电子株式会社 | Semiconductor devices |
| CN103718618A (en) * | 2011-09-12 | 2014-04-09 | 苹果公司 | Monitoring battery in portable electronic device |
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