This document defines the DDR4 SDRAM specification, including features, functionalities, AC and DC characteristics, packages, and ball/signal assignments. The purpose of this Standard is to define the minimum set of requirements for JEDEC compliant
DDR4攻口的绘图信息，文本信息介绍了DDR4的各个参数和相关信息。4.00
ULL R
74.20MN
7￥4.00MN
4.00±0.10
2X 0.25 MAX
OPTIon 1
(DATUM A)
2X0.25 MAX
oPtion 1
13
4
1.00±0.05
4.00
FULL R
74.20MN
4.00M|N
4.00±0.10
(DATUM A)
2X RO.25 MAX
OPTION 2
4\|D3
1.00士0.05
DETAIL Z
JEDEC SOLID STATE
