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can i use multiple memory card in a single cell ?

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The memory card structure is divided into the controller, responsible for processing read / write data and the NAND flash, is responsible for data storage. Photos taken are processed by the camera’s controller, data is passed onto the memory card controller for processing before being stored in the NAND flash. Therefore, a memory card’s controller and NAND flash type greatly affects its write speed. (1) NAND flash type NAND flash is divided into SLC (Single Level Cell) and MLC(Multi Level Cell) types. Most of the SDHC memory cards on the market use MLC flash modules. As dominated by low cost SDHC memory cards on the market, other manufacturers are not willing to use highly priced SLC flash modules. Another words, using SLC will definitely boost write speeds and also cost. SLC store single data packets in a single cell, MLC store multiple data packets in a single cell and thus SLC flash modules are faster. This is also why great capacities can not be reached when using SLC modules and MLC flash modules can reach greater capacities but at slower speeds, when compared to SLC flash modules. (2) Controller performance Controller implementation method and performance plays an important role in the memory card’s write speed. By implementing multiple controllers, transfer speeds can be boosted significantly but the price, also increases dramatically. In addition, with different controllers, sometimes data is temporarily stored in the camera’s flash memory. Once the camera’s memory storage is full, data is then written into the memory card. Other controllers will write directly and continuously into the memory card and of course, with different methods, write speeds will vary! (3)CF memory card will be affected by different transfer modes PIO mode does not utilize the CPU when transferring data. It transfer data directly to the CF memory card. Nowadays, many cameras use the PIO mode to transfer data. The PIO and UDMA modes are both further divided into 0~6 modes, each mode signifies a different speed class. The important thing is that both devices must support the same mode. In the case where one supports UDMA mode 5 and the other UDMA mode 4, the maximum operable mode will be UDMA mode
Posted: 09-02-2012 @ 22:42:45
In electronics, a multi-level cell (MLC) is a memory element capable of storing more than a single bit of information. MLC NAND flash is a flash memory technology using multiple levels per cell to allow more bits to be stored using the same number of transistors. In single-level cell (SLC) NAND flash technology, each cell can exist in one of two states, storing one bit of information per cell. Most MLC NAND flash memory has four possible states per cell, so it can store two bits of information per cell. This reduces the amount of margin separating the states and results in the possibility of more errors. Multi-level cells which are designed for low error rates are sometimes called enterprise MLC (eMLC). The primary benefit of MLC flash memory is its lower cost per unit of storage due to the higher data density. However, software complexity can be increased to compensate for a larger bit error ratio.[1] The higher error ratio requires an algorithm that can correct errors up to five bits and detect the condition of more than five bad bits.[citation needed] The most commonly used algorithm is Bose-Chaudhuri-Hocquenghem (BCH code). Other drawbacks of MLC NAND are lower write speeds, lower number of program-erase cycles and higher power consumption compared to SLC flash memory. A few memory devices go the other direction, and use two cells per bit, to give even lower bit error rates. Flash memory stores data in individual memory cells, which are made of floating-gate transistors. Traditionally, each cell had two possible states, so one bit of data was stored in each cell in so-called single-level cells, or SLC flash memory. SLC memory has the advantage of faster write speeds, lower power consumption and higher cell endurance. However, because it stores less data per cell, it costs more per megabyte of storage to manufacture. Due to faster transfer speeds and longer life, SLC flash technology is used in high-performance memory cards.
Posted: 08-02-2012 @ 12:06:26
Yes ,You can use multiple memory card in a cell. Many brands gives that facility in their phones. Samsung also gives that facility in some of their products. Specially, china made phones having multiple memory storage cells. You have many options for that. Thanx........
Posted: 08-02-2012 @ 09:29:31
Yes We can use but it depends on handset as this facility is not available in most of the mobile phones.
Posted: 10-08-2011 @ 18:20:05
spice has launched a phone in which you can use two memory card simultaneously
Posted: 10-08-2011 @ 17:07:39
yes you can use 2memory cards at a time
Posted: 10-08-2011 @ 15:28:01
yes, spice is offering good models such as qt 44, qt 55 etc.
Posted: 10-08-2011 @ 14:23:09
YES, but its not possible in all phones. Branded phones like Nokia, Samsung, Sony ericcson are not coming with that facility. Only china phones are manufactured with the support of dual memory card slots.
Posted: 08-08-2011 @ 02:37:53
if you want 2 mmc's to act at same time = Chinese phones, spice etc if you want to try diff mmc's in one phone = any will do
Posted: 06-08-2011 @ 03:25:40
yes you can use two memory cards in a single phone
Posted: 05-08-2011 @ 18:04:00
yes, u can use multiple memory card in a single cellphone, but this function is available with a limited handset and you should have to this.
Posted: 05-08-2011 @ 14:52:50
ya i thin so we can use
Posted: 05-08-2011 @ 14:32:02
Yes we can, bt i had only seen it in spice mobile phones. I dont know abt other phones....
Posted: 03-08-2011 @ 17:27:02
Yes, but there are only some selected phones of china in which we can use double memory cards slot.
Posted: 01-08-2011 @ 22:27:35
yes you can use multiple memory card in a single cell.
Posted: 01-08-2011 @ 22:12:23
YES, but its not possible in all phones. Branded phones like Nokia, Samsung, Sony ericcson are not coming with that facility. Only china phones are manufactured with the support of dual memory card slots.
Posted: 31-07-2011 @ 00:26:59
yes in some few mobiles
Posted: 29-07-2011 @ 21:01:59