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Title	Document #	Date
Annex E, R/C E, in 260-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM SODIMM Design Specification Release Number: 30	MODULE4.20.25.E	May 2020
This specification defines the electrical and mechanical requirements for Raw Card E, 260-pin, 1.2 Volt (VDD), Small Outline, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM SODIMMs). These DDR4 SODIMMs are intended for use as main memory when installed in PCs, laptops, and other systems. Item 2228.33C. Committee(s): JC-45.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required.
DDR5 Registered Dual Inline Memory Module with 8-bit ECC (EC8 RDIMM) Raw Card C Annex Release Number: Version 2.00	JESD305-R8-RCC	Feb 2025
This standard, JESD305-R8-RCC, DDR5 Registered Dual Inline Memory Module with 8-bit ECC (EC8 RDIMM) Raw Card C Annex, defines the design detail of x4, 1 Package Rank DDR5 RDIMM with 8-bit ECC. The common feature of DDR5 RDIMM, such as the connector pinout, can be found in the JESD305, DDR5 Registered Dual Inline Memory Module (RDIMM) Common Standard. Committee(s): JC-45, JC-45.1 Free download. Registration or login required.
DDR5 Registered Dual Inline Memory Module with 8-bit ECC (EC8 RDIMM) Raw Card E Annex Release Number: Version 2.00	JESD305-R8-RCE	Feb 2025
This standard, JESD305-R8-RCE, DDR5 Registered Dual Inline Memory Module with 8-bit ECC (EC8 RDIMM) Raw Card E Annex, defines the design detail of x8, 2 Package Rank DDR5 RDIMM with 8-bit ECC. The common feature of DDR5 RDIMM, such as the connector pinout, can be found in the JESD305, DDR5 Registered Dual Inline Memory Module (RDIMM) Common Standard. Committee(s): JC-45, JC-45.1 Free download. Registration or login required.
DDR5 Registered Dual Inline Memory Module with 8-bit ECC (EC8 RDIMM) Raw Card A Annex Release Number: Version 2.00	JESD305-R8-RCA	Feb 2025
This annex, JESD305-R8-RCA, DDR5 Registered Dual Inline Memory Module with 8-bit ECC (EC8 RDIMM) Raw Card A Annex, defines the design detail of x4, 2 Package Rank DDR5 RDIMM with 8-bit ECC. The common feature of DDR5 RDIMM, such as the connector pinout, can be found in the JESD305, DDR5 Registered Dual Inline Memory Module (RDIMM) Common Standard. Committee(s): JC-45, JC-45.1 Free download. Registration or login required.
DDR5 Small Outline Dual Inline Memory Module (SODIMM) Raw Card B Annex Release Number: Version 1.1	JESD309-S0-RCB	Mar 2025
This annex, JESD309-S0-RCB, DDR5 Small Outline Dual Inline Memory Module with 0-bit ECC (EC0 SODIMM) Raw Card B Annex", defines the design detail of x8, 2 Package Ranks DDR5 NECC SODIMM. The common feature of DDR5 SODIMM such as the connector pinout can be found in the JESD309, DDR5 Small Outline Dual Inline Memory Module (SODIMM) Common Standard. Committee(s): JC-45, JC-45.3 Free download. Registration or login required.

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