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SN11087 PDF预览

SN11087

更新时间: 2022-11-27 01:58:30
品牌 Logo 应用领域
松翰 - SONIX 闪存控制器
页数 文件大小 规格书
14页 228K
描述
Second Generation USB1.1 Flash Memory Controller

SN11087 数据手册

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2003/7/8 ver 0.3  
SN11087  
SN11087  
Second Generation USB1.1 Flash Memory Controller  
Version 0.3  
2003/7/8  
1 General Description  
SN11087 is a high-performance integrated circuit to access the NAND type Flash memory  
via the USB 1.1 bus. It provides a flexible and cost efficient single chip solution for external  
storage applications such as USB Disk (Flash Disk). With the capability to be pin-to-pin  
compatible to SN11085, the current user of SN11085 can easily upgrade to SN11087 with no  
engineering effort needed at all. With all the features inherited from SN11085/086 like the  
low 6MHz system clock to reduce the EMI, the embedded translation table to eliminate the  
cost of external memory, the Sonix proprietary randomization algorithm to extend the  
lifetime of flash memory and ensure the product robustness, and the real time ECC correction  
function, the SN 11087 adds several other unique features to reduce the cost of the end  
product and meet the customer’s requirements.  
To enrich the product line of the OEM manufacture, with the ability to support 8 pieces of  
flash memories and the new types of 2G bits flashes, SN11087 can be used to build up a  
storage device up to 2 Giga bytes. To reduce the total cost of the end product, SN11087  
incorporates a power MOS inside to meet the current requirement (500 uA) in USB suspend  
state. The usage of EEPROM can also now be eliminated by the capability to program the  
customized vendor/product ID/string in the flash itself. Therefore, the total cost is reduced by  
upgrade from SN11085 to SN11087.  
For fulfilling different customers’ needs, SN11087 now provides several ways to build  
different end products. The first one is to provide different security functions. The OEM  
manufacturers can program one of the two ways in manufacturing via software. The flashing  
ways of LED can also be selected by software now. The pin 35 of SN11087 is now used to  
support new security feature. The original two security features provided in SN11085/86 still  
1

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