DDR4 UDIMM Memory Module Specifications

8GB 2666MHz 288-Pin DDR4 UDIMM

Revision History

Ordering Information Table

Description
Hengstar Unbuffered DDR4 SDRAM DIMMs (Unbuffered Double Data Rate Synchronous DRAM Dual In-Line Memory Modules) are low power, high-speed operation memory modules that use DDR4 SDRAM devices. NS08GU4E8 is a 1G x 64-bit one rank 8GB DDR4-2666 CL19 1.2V SDRAM Unbuffered DIMM product, based on eight 1G x 8-bit FBGA components. The SPD is programmed to JEDEC standard latency DDR4-2666 timing of 19-19-19 at 1.2V. Each 288-pin DIMM uses gold contact fingers. The SDRAM Unbuffered DIMM is intended for use as main memory when installed in systems such as PCs and workstations.

Features
Power Supply: VDD=1.2V (1.14V to 1.26V)
VDDQ = 1.2V (1.14V to 1.26V)
VPP - 2.5V (2.375V to 2.75V)
VDDSPD=2.25V to 3.6V
Nominal and dynamic on-die termination (ODT) for data, strobe, and mask signals
Low-power auto self refresh (LPASR)
Data bus inversion (DBI) for data bus
On-die VREFDQ generation and calibration
On-board I2C serial presence-detect (SPD) EEPROM
16 internal banks; 4 groups of 4 banks each
Fixed burst chop (BC) of 4 and burst length (BL) of 8 via the mode register set (MRS)
Selectable BC4 or BL8 on-the-fly (OTF)
Databus write cyclic redundancy check (CRC)
Temperature controlled refresh (TCR)
Command/Address (CA) parity
Per DRAM Addressability is supported
8 bit pre-fetch
Fly-by topology
Command/Address latency (CAL)
Terminated control command and address bus
PCB: Height 1.23” (31.25mm)
Gold edge contacts
RoHS Compliant and Halogen-Free

Key Timing Parameters

Address Table

Functional Block Diagram 

8GB, 1Gx64 Module (1Rank of x8)

Absolute Maximum Ratings

Absolute Maximum DC Ratings

DRAM Component Operating Temperature Range

AC & DC Operating Conditions

Recommended DC Operating Conditions

Module Dimensions

Front view

Back view