SD NAND and Raw NAND Comparative analysis of advantages and disadvantages

    About what is CS creation SD NAND( Also known as ： Mini eMMC, Small size / Small capacity eMMC, Chip mounted T card , Chip mounted TF card , Chip mounted SD Card, etc )  We have a detailed introduction before ：http://www.longsto.com/product/31.html.

   that CS creation SD NAND And ordinary NAND Flash(Raw NAND) What's the difference ？ Here we make a comparison chart ：

   As you can see from above CS creation SD NAND Follow Raw NAND The main difference is that ：

1, Drive free .SD NAND Built in for NAND Flash Bad block management , Average reading and writing , Dynamic and static EDC/ECC And so on . The benefits are ：

a）  Make the quality of products more stable , Better prolong life .

b）  Reduce CPU The load of . Let the follow-up focus on NAND Flash The operation of , You can give it to SD NAND,CPU You can leave it alone .

c）  Save programmer time and company costs . We have met customers and spent 3 Write by yourself in six months NAND Flash drive , Finally, I gave up .3 How much is the hourly cost of the program staff per month , You can calculate .

d）  Speed up the research and development of products . Use SD NAND, R & D personnel can focus on the realization of product functions , Instead of spending NAND Flash On the bottom driver .

2, More stable performance . because NAND Flash The internal mechanism is erase before write , If the software does not handle it properly , In case of sudden power failure, it will lead to data loss . and SD NAND Internal garbage collection and other mechanisms can well avoid this problem . therefore CS The second generation products of Chuangshi will pass 10K Times of random power failure test .

3, Smaller size . at present SD NAND yes 6*8mm  size ,8 individual pin foot , comparison Raw NAND Of 12*20mm size ,48 individual pin foot , use SD NAND Can make smaller products , And it can also save CPU Precious GPIO mouth （ This is for MCU SCM is more important ）

4,SD NAND More optional capacities . There are 128MB/512MB/4GB Capacity . and SLC  Of Raw NAND Mainstream capacity 128MB,512MB Already rare , The supply cycle is also very long ; A single one 4GB Of Raw NAND Basic it is MLC perhaps TLC NAND The wafer , Management is more complicated .

5,SD NAND I can read and write faster . Welcome to apply for sample test .

   Want to know CS creation  SD NAND For more information , Please click the link :SD NAND- Leilong Development Co., Ltd .

Dear card friends , If you still have doubts or don't understand after reading the article , Please contact us , It's tiring to understand or guess the answer by yourself , Please leave the most troublesome matter to us , There are specialized skills , There is an order in hearing Tao , Leilong development focuses on the storage industry 13 year , Specializing in providing small capacity flash memory solutions .