SD卡工厂，贵阳SD卡，步步高电话机SD卡

SD卡知识                                                     

1.SD卡是Secure Digital Card卡的简称，中文简称：“安全数字卡”，

2.SD卡尺寸：32mm x 24mm x 2.1mm。                             

3.分类：                                                 

a.SD1.0:  SD1.0卡***大支持2Gbyte（GB）                         

电源要求：电压3.3V&plu***n;10%；5.0V&plu***n;10%

读电流：12mA/3.3V；15mA/5.0V                                

写电流：20mA/3.3V；40mA/5.0V                                 

数据传输速度：2M/s                                     

环境要求：抗冲击：50Gs/11ms                             

抗震动：15Gs peak-to-pea                                     

使用温度：0℃～55℃                                    

保存温度：-20℃～65℃                                        

格式化方式：FAT                                          

B、SD2.0：                                            

电源要求：电压2.7-3.6V&plu***n;10%；

数据传输速度：Class2(2MB/sec)、Class4(4MB/sec)、Class6(6MB/sec)等级别。

环境要求：抗冲击：50Gs/11ms                             

抗震动：15Gs peak-to-pea                                     

使用温度：0℃～55℃                                    

保存温度：-20℃～65℃                                        

格式化方式：4GB及4GB以上用FAT32                              

4.SD卡方案：                                               

       ***I/2681**/2682**/2683**                            

       安国/7647/7651/7653/7657                              

       兴邦/CBM3080/3082                                       

       incom/369**                                     

       建荣/211/213                                    

       weiya/6202/6203等