Comparison of common U disk main control chips

We buy u disk when we will pay attention to the various parameters of u disk, such as reading and writing speed, capacity, etc., these are just appearances, a U disk performance depends more on its use of the main control chip. Different manufacturers of the main control chip characteristics are different, we look at together.

First, the characteristics of the main control (Skymedi):

1, support USB-CDROM/USB-ZIP/USB-HDD three-disk coexistence and start-up. (have JS said Netac also support Sanqi is deceptive.) )

2, compatibility and speed of reading and writing generally.

3, the supported ISO image size is less than 1G.

Q-ty version:

1, one is SK6211, support USB memory dual channel. (Dual-channel memory on a USB drive is much faster than a desktop computer.) )

2, one is SK6281, only support USB disk deposit channel.

So buy a flash drive Best Buy a SK6211 master control.

Second, the group (Phison) main control characteristics:

1, does not support Usb-cdrom and USB-HDD coexistence and dual-kai.

2, very good compatibility, read and write speed is very fast. Production success rate is highest, up to more than 99%.

3, the supported ISO image size is less than 1G. I've tried more than 1G to succeed.

4, has the mass production information Assistant GetInfo. (facilitates the search for mass production tools.) )

Phison up1x----Support for the original film is good, but the price is very high. On the black film support is also not ideal, with the original film can be considered.

Three, Hui Rong (SIM) main control characteristics:

1, the best compatibility, mass production is the simplest, support USB memory dual-channel.

2, support super large capacity image (less than 2G). This is the only one to support the large-capacity ISO image of a main control chip. The main control is SMI325, SMI3252 and so on.

3, the mass production of the general selection of partition format FAT32 better, the selection of NTFS will appear some abnormal problems. SMI32X-----SMI's products are the most outstanding of course, the SMI scheme of the SD card, compatibility is strong, but his family's USB disk so far for high-capacity 50nm Flash support seems not very good. To the black piece support heard to have in the improvement, originally to the black piece support also is not very good.

Four, the main control of Sheng (UT) Characteristics:

1, the support of dual-kai

2, the tool is intuitive, the performance is stable. But Usb-cdrom is the rear, it is difficult to change to the predecessor.

3, the supported ISO image size is less than 1G.

USBest UT163/5----for 50nm high-capacity Flash support is good, its performance is very stable, high-speed USB 2.0 system, support hot-swappable function. Read in dual-channel mode reads can be achieved: 33mb/s, write speed can be reached: 22mb/s. Read speed in single channel mode reads up to

To: 20mb/s, writing speed write can be achieved: 8mb/s. High-speed USB2.0 interface; the same and USB1.1 coordination, the disadvantage: the main control price is high, do not support black film, do not provide expansion and upgrade processing, wiring requirements are very high. USBest program itself is to support the production of black film very time-consuming, flash requirements very high.

V. Xin Chuang (SSS) The characteristics of the main control. Introduction and distinguishing method of U disk main control chip

1, fast, support dual channel, performance general.

2, the success rate of mass production is not high.

3, the supported ISO image size is less than 1G. I have tried more than 1G to succeed.

Six, the main control characteristics of the (AU):

1, the compatibility is not very good, but can enlarge.

2, the success rate of mass production is not very high.

3, the supported ISO image size is less than 1G.

Anguo 698X---The main force is not on the U disk, the state-owned some products sell well, such as: Reader Master, because the main control of the card reader accounted for half of the price, of course, the U disk is an Guo later on the project, so the U disk part is still to be verified, such as Flash support for the process is very good,

Only slightly slower than usbest UT163/5 and so on ... However, many manufacturers in the market with the original piece or black film to do upgrades or expansion of the preferred solution to deal with.

Seven, the core State main control characteristics:

1, the speed is slow, the market share is very high.

2, the quality of flash chip is very poor, basic is the use of black film.

3, JS are like sales, because the price is low.

Flash manufacturers do not need to compare, Samsung, Intel, Heidelberg, Toshiba are manufacturers. But there are SLC, MLC, TLC points.

SLC (Single-level Cell) is 1bit/cell, the speed of long life, the price is expensive (about MLC 3 times times more than the price), about 100,000 times to erase life;

MLC (multi-level Cell) that is 2bit/cell, general speed of general life, the price is general, about 5000---10,000 times to erase the life;

TLC (Trinary-level Cell) is 3bit/cell, some flash manufacturers also called 8LC, slow, short life, cheap, about 500 times to wipe the life, there are no manufacturers can do 1000 times. Of course, it's not that MLC is better than TLC.

For example, black plate expansion plate Although these are MLC, but the quality of serious unqualified, capacity fraud, but also buy authentic TLC

However, for the high speed, buy SLC's

Kingston's rotary disc, telescopic mouth can be based on the handicap of the middle line of the number to determine the main chip model, the early hat plate according to the side of the most next line number can also confirm the main control, the recent Kingston U disk can also be based on the 24-bit serial number 13th judge the master.

According to the known information:

Better compatibility of the master control

SK6211BA (three-drive Sanqi): 04286, 04234, 04256, M4286, 04226, C4226 SK6211BB (can be three-drive Sanqi): 04335, 04334

sk6213:04300-308

SK6281 (AB can be CD-ROM back, AA not CD-ROM): 04234 (part), 04235-351, 04226-312

SK6201 (non-energy production CD-ROM): 04169, C4169

Phison (CD-ROM): 05360, 05365, 05375, 05381 (part), 05384, 05430, 05440, 05470, 04235, 04236, 04265, 04266, 04292, 04227, 04366, 04282, 04336

Poor compatibility of master controls

tc58nc6688 (B0)/3s6690 (B1) Temporary energy production CD-ROM; SSS6675 available

6677_v2103 tool volume production, other available corresponding version of the volume production

sss6677:04249, C4249

sss6675:c4225

tc58nc6686g1f:05831, 05381-005, 05381-029, 05430-016

SSS6690, 6,691:04275, C4275, 04349, C4300, 04300 parts, 05430-062, 05430-072, 05381-095, 05381-064, 05381-102, 05430-074

04226-493~SK6211BA 04234~sk6211 04234-340~sk6211 04235-440~ps2233

04235-444~ps2251-39 04235-445~ps2251-39 04275~sss6690 04286~sk6211

04286-533~sk6211 04292~UP16~UP15 04292-303~ps2233 04300~sss6690

04313~sss6690 04335~SK6211BB 04335-311~

SK6211BB 04335-344~sk6211

04366-308~ps2233/ps2251-39 05381-096~tc58nc6689gif 05430-004~ps2233

05430-042~ps2233 05430-072~sss6691 05130 074~

SSS6691 05440~UP16

05440-019~ps2251 c4225~sss6675 c4169~sk6281: sk6211ba, 6211BB, 6213A is the first choice of the player toss the main control, support three-drive three, common Uginston of various sections, Sheng Chong (Kingmax) part of the plate. (Flash is not recommended for "JS" character header)

Hui Rong: To speed, SM324, 321, 325X and other support simulation fdd,sm325x can also support the Super large ISO production, Lenovo, Patriots, Newman, Hewlett-Packard, Tsinghua Tongfang and other brands may have. (SLC is particularly good)

Group: excellent stability, early product UP12 especially excellent quality, the original production tool version can be getinfo identified, Kingston, Yu-Zhan, Toshiba and other brands have seen. (Recent products have shrunk, Netac TLC is not recommended)

Of course, U disk main control chip characteristics you do not want to understand all, this is not true for the general U disk users. However, we still need to understand some basic knowledge, in order to prevent the purchase of U disk when JS fooled eventually suffered losses.