DESCRIPTION SPECIFICATIONS
*Power will vary depending on the SDRAM used.
KVR21E15D8/8
8GB 2Rx8 1G x 72-Bit PC4-2133
CL15 288-Pin DIMM
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FEATURES
This document describes ValueRAM's KVR21E15D8/8 is a 1G x
72-bit (8GB) DDR4-2133 CL15 SDRAM (Synchronous DRAM),
2Rx8, ECC, memory module, based on eighteen 512M x 8-bit
FBGA components. The SPD is programmed to JEDEC standard
latency DDR4-2133 timing of 15-15-15 at 1.2V. Each 288-pin
DIMM uses gold contact fingers. The electrical and mechanical
specifications are as follows:
CL(IDD)
Row Cycle Time (tRCmin)
Refresh to Active/Refresh
Command T ime (tRFCmin)
Row Active T ime (tRASmin)
Maximum Operating Power
UL Rating
Operating Temperature
Storage Temperature
15 cycles
46.5ns(min.)
260ns(min.)
33ns(min.)
TBD W*
94 V - 0
0o C to +85o C
-55o C to +100o C
• Power Supply: VDD=1.2V Typical
• VDDQ = 1.2V Typical
• VPP - 2.5V Typical
• VDDSPD=2.2V 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
• Dual-rank
• On-board I2 serial presence-detect (SPD) EEPROM
• Temperature sensor with integrated SPD
• 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)
• Fly-by topology
• Terminated control command and address bus
• PCB: Height 1.23” (31.25mm)
• RoHS Compliant and Halogen-Free
Document No. VAL UERAM1495-001.A00 1/14/16 Page 1
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Memory Module Specifi cations
MODULE DIMENSIONS
3.35
Detail E
2.10
±
±
0.15
64.60
56.10
2.70
±
0.15
31.25
17.60
133.35
129.55
Detail A
14.60
3.00
28.90
Pin 35 Pin 47
Pin 1
22.95
Pin 105 Pin 117
Detail B Detail D Detail C
8.00
11.00
continued HyperX
Document No. VALUERAM1495-001.A00 Page 2
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