K4B2G0446D
K4B2G0846D
数据表
修订版1.01
DDR3L SDRAM
目录
2GB D-死DDR3L SDRAM
1.订购信息.....................................................................................................................................................五
2.重点Features.................................................................................................................................................................五
3.封装引脚/机械尺寸& Addressing.................................................................................................. 6
3.1 X4封装引脚（顶视图） ： 78ball FBGA封装...................................... .................................................. 6 ..
3.2 X8封装引脚（顶视图） ： 78ball FBGA封装...................................... .................................................. 7 ..
3.3 FBGA封装尺寸（ X4 / X8 ） .......................................................................................................................... 8
4.输入/输出功能Description.............................................................................................................................. 9
5. DDR3 SDRAM寻址........................................................................................................................................... 10
6.绝对最大额定值.......................................................................................................................................... 11
6.1绝对最大DC Ratings............................................................................................................................... 11
6.2 DRAM元件工作温度范围............................................ .................................................. .. 11
7. AC &直流工作Conditions..................................................................................................................................... 11
7.1建议的直流工作条件(SSTL_1.5)............................................................................................. 11
8. AC &直流输入电平测量............................................................................................................................ 12
8.1交流&直流逻辑输入电平为单端信号...................................... .................................................. ...... 12
8.2 V
REF
Tolerances...................................................................................................................................................... 14
8.3交流&直流逻辑输入电平为差分信号........................................ .................................................. ...... 15
8.3.1 。差分信号的定义............................................................................................................................ 15
8.3.2 。差分摆幅要求时钟（ CK - CK）和选通脉冲（ DQS - DQS ） ................................. ................. 15
8.3.3 。单端要求的差分信号........................................... ................................................ 17
8.4差分输入交叉点Voltage...................................................................................................................... 18
对于差分输入信号8.5压摆率的定义..................................................................................................... 19
8.6压摆率的定义为差分输入信号.......................................... .................................................. ....... 19
9. AC &直流输出电平测量......................................................................................................................... 19
9.1单端AC &直流输出Levels..................................................................................................................... 19
9.2差分交流&直流输出Levels......................................................................................................................... 19
9.3单端输出压摆率.............................................................................................................................. 20
9.4差分输出摆率.................................................................................................................................. 21
9.5参考负载的AC时序和输出摆率........................................ .................................................. .. 21
9.6过冲/下冲规格....................................................................................................................... 22
9.6.1 。地址和控制过冲和下冲规格........................................... ........................... 22
9.6.2 。时钟，数据，选通和面具过冲和下冲规格....................................... ............... 23
9.7 34ohm输出驱动器DC电气Characteristics................................................................................................. 23
9.7.1 。输出驱动器的温度和电压灵敏度............................................ .............................................. 25
9.8片上端接（ ODT）水平和IV特性...................................... ............................................... 25
9.8.1 。 ODT DC电气特性................................................................................................................... 26
9.8.2 。 ODT温度和电压灵敏度...................................................................................................... 28
9.9 ODT时序定义........................................................................................................................................... 29
9.9.1 。测试负载的ODT Timings.............................................................................................................................. 29
9.9.2 。 ODT时序定义.................................................................................................................................... 29
10. IDD电流测量Method..................................................................................................................................... 32
10.1 IDD测量条件............................................................................................................................... 32
11. 2GB DDR3 SDRAM D-模具IDD规格表....................................... .................................................. ........... 41
12.输入/输出电容........................................................................................................................................... 42
13.电气特性和AC时序DDR3-800到DDR3-1600 ................................... ................................... 43
13.1时钟规格................................................................................................................................................ 43
13.1.1 。用于定义tCK(avg).................................................................................................................................... 43
13.1.2 。用于定义tCK(abs).................................................................................................................................... 43
13.1.3 。针对TCH （ AVG）和TCL （ AVG）的定义.............................................................................................................. 43
13.1.4 。对于笔记定义tJIT （ PER） ， tJIT （每，伊克） ................................... .................................................. ............ 43
13.1.5 。对于tJIT （CC ）的定义， tJIT （CC ，伊克） ................................................................................................................. 43
13.1.6 。对于TERR定义（ NPER ） ................................................................................................................................ 43
按设备13.2刷新参数Density................................................................................................................. 44
13.3速箱和CL ， tRCD的，激进党，真相与和解委员会tRAS的相应斌.................................. ............................... 44
13.3.1 。转速表斌的注意事项.................................................................................................................................. 47
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