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Memory Module Specifi cations
KVR21R15S8/4
4GB 1Rx8 512M x 72-Bit PC4-2133
CL15 Registered w/Parity 288-Pin DIMM
DESCRIPTION
ValueRAM's KVR21R15S8/4 is a 512M x 72-bit (4GB)
DDR4-2133 CL15 SDRAM (Synchronous DRAM) registered w/
parity, 1Rx8, ECC, memory module, based on nine 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:
SPECIFICATIONS
FEATURES
*Power will vary depending on the SDRAM used.
• 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 2.75V
• Functionality and operations comply with the DDR4 SDRAM datasheet
• 16 internal banks
• Bank Grouping is applied, and CAS to CAS latency (tCCD_L, tCCD_S) for
the banks in the same or different bank group accesses are available
• Data transfer rates: PC4-2133, PC4-1866, PC4-1600
• Bi-Directional Differential Data Strobe
• 8 bit pre-fetch
• Burst Length (BL) switch on-the-fly BL8 or BC4(Burst Chop)
• Supports ECC error correction and detection
• On-Die Termination (ODT)
• Temperature sensor with integrated SPD
• This product is in compliance with the RoHS directive.
• Per DRAM Addressability is supported
• Internal Vref DQ level generation is available
• Write CRC is supported at all speed grades
• CA parity (Command/Address Parity) mode is supported
CL(IDD)
Row Cycle Time (tRCmin)
Refresh to Active/Refresh
Command Time 1x mode (tRFCmin)
Row Active Time (tRASmin)
Maximum Operating Power
UL Rating
Operating Temperature
Storage Temperature
15 cycles
47.05ns(min.)
260ns(min.)
33.00ns(min.)
TBD W*
94 V - 0
o
C to +85o C
0
o
C to +100o C
-55
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Document No. VALUERAM1472-001.A00 04/30/15 Page 1
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MODULE DIMENSIONS
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