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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

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Annex G, Raw Card G, 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.G May 2020

This annex defines the electrical and mechanical requirements for Raw Card G, 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 No. 2228.34C

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex E, R/C E, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Unbuffered DIMM Design Specification

Release Number: 30 		MODULE4.20.26.E Jun 2020

This specification defines the electrical and mechanical requirements for Raw Card E, 288-pin, 1.2 Volt (VDD), Unbuffered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM UDIMMs). These DDR4 Unbuffered DIMMs (UDIMMs) are intended for use as main memory when installed in PCs. Item 2231.17B.

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex A, R/C A, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 30 		MODULE4.20.28.A Aug 2020

This specification defines the electrical and mechanical requirements for Raw Card A, 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs. Item 2149.40a.

Committee(s): JC-45.1

JESD21-C Solid State Memory Documents Main Page

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Annex B, R/C B, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 30 		MODULE4.20.28.B Aug 2020

This document defines the electrical and mechanical requirements for Raw Card B, 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs. Committee Item 2149.38a.

Committee(s): JC-45.1

JESD21-C Solid State Memory Documents Main Page

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Annex D, Raw Card D, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 30 		MODULE4.20.28.D Aug 2020

This specification defines the electrical and mechanical requirements for Raw Card D, 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs. Item 2149.08c

Committee(s): JC-45, JC-45.1

JESD21-C Solid State Memory Documents Main Page

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Annex E, R/C E, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 30 		MODULE4.20.28.E Aug 2020

This specification defines the electrical and mechanical requirements for Raw Card E, 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs. Committee Item 2149.34a

Committee(s): JC-45.1

JESD21-C Solid State Memory Documents Main Page

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Annex A, R/C A, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Unbuffered DIMM Design Specification

Release Number: 30A 		MODULE4.20.26.A Nov 2020

This document defines the electrical and mechanical requirements for Raw Card A, 288-pin, 1.2 Volt (VDD), Unbuffered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM UDIMMs). These DDR4 Unbuffered DIMMs (UDIMMs) are intended for use as main memory when installed in PCs. Committee Item 2231.38A.

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex B, Raw Card B, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Load Reduced DIMM Design Specification

Release Number: 30 		MODULE4.20.27.B Dec 2020

This specification defines the electrical and mechanical requirements for Raw Card B, 288-pin, 1.2 Volt (VDD), Load Reduced, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM LRDIMMs). These DDR4 Load Reduced DIMMs (LRDIMMs) are intended for use as main memory when installed in PCs. Item 2204.24.

Committee(s): JC-45.4

JESD21-C Solid State Memory Documents Main Page

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Annex D, R/C D, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Unbuffered DIMM Design Specification

Release Number: 30 		MODULE4.20.26.D Dec 2020

This document defines the electrical and mechanical requirements for Raw Card D, 288-pin, 1.2 Volt (VDD), Unbuffered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM UDIMMs). These DDR4 Unbuffered DIMMs (UDIMMs) are intended for use as main memory when installed in PCs. Item 2231.21A.

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex E, R/C E, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Load Reduced DIMM Design Specification

Release Number: 30 		MODULE4.20.27.E Dec 2020

This specification defines the electrical and mechanical requirements for Raw Card E, 288-pin, 1.2 Volt (VDD), Load Reduced, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM LRDIMMs). These DDR4 Load Reduced DIMMs (LRDIMMs) are intended for use as main memory when installed in PCs. Item 2232.20.

Committee(s): JC-45.4

JESD21-C Solid State Memory Documents Main Page

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Annex B, R/C B, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Unbuffered DIMM Design Specification

Release Number: 30A 		MODULE4.20.26.B Dec 2020

This document defines the electrical and mechanical requirements for Raw Card B, 288-pin, 1.2 Volt (VDD), Unbuffered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM UDIMMs). These DDR4 Unbuffered DIMMs (UDIMMs) are intended for use as main memory when installed in PCs. Item 2231.26.

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex A, Raw Card A, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Load Reduced DIMM Design Specification

Release Number: 30 		MODULE4.20.27.A Dec 2020

Item No. 2204.22

Committee(s): JC-45.4

JESD21-C Solid State Memory Documents Main Page

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Annex D, R/C D, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Load Reduced DIMM Design Specification

Release Number: 30 		MODULE4.20.27.D Dec 2020

This specification defines the electrical and mechanical requirements for Raw Card D, 288-pin, 1.2 Volt (VDD), Load Reduced, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM LRDIMMs). These DDR4 Load Reduced DIMMs (LRDIMMs) are intended for use as main memory when installed in PCs. Item 2204.23

Committee(s): JC-45.4

JESD21-C Solid State Memory Documents Main Page

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PC-2700/PC-3200 Registered DIMM Design Specification Revision 2.2

 MODULE4.20.7 May 2021

Release 31. Item 2029.04

This revision contains terminology updates only.

Committee(s): JC-45, JC-45.1

JESD21-C Solid State Memory Documents Main Page

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240-Pin PC2-5300/PC2-6400 DDR2 SDRAM Unbuffered DIMM Design Specification

 MODULE4.20.13 May 2021

Release 31.  Item 2167.05

This revision contains terminology updates only.

Committee(s): JC-45, JC-45.2, JC-45.3

JESD21-C Solid State Memory Documents Main Page

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240-Pin PC3-6400/PC3-8500/PC3-10600/PC3-12800/PC3-14900/PC3-17000 DDR3 SDRAM Unbuffered DIMM Design Specification

 MODULE4.20.19 May 2021

Release No. 31. Item 2131.03, 2078.04, 2131.06

This revision contains terminology updates only.

Committee(s): JC-45, JC-45.2, JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex D, Raw Card D, 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: 31 		MODULE4.20.25.D Mar 2022

This specification defines the electrical and mechanical requirements for Raw Card D, 260-pin, 1.2 Volt (VDD), Small Outline, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM SO-DIMMs). These DDR4 SO-DIMMs are intended for use as main memory when installed in PCs, laptops, and other systems. Item 2228.60.

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex F, R/C F, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Unbuffered DIMM Design Specification

Release Number: 33 		MODULE4.20.26.F Feb 2023

This specification defines the electrical and mechanical requirements for Raw Card F, 288-pin, 1.2 Volt (VDD), Unbuffered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM UDIMMs). These DDR4 Unbuffered DIMMs (UDIMMs) are intended for use as main memory when installed in PCs. Item 2231.43.

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex K, Raw Card K, 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: 33 		MODULE4.20.25.K.01 Aug 2023

This revision is to add R/C K1 for up to
PC4-3200 support for the DDR4 SO-DIMM R/C K Annex. Item 2228.68.

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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