Description
ValueRAM's KVR21R15D4/16 is a 2G x 72-bit (16GB) DDR4-2133 CL15 SDRAM (Synchronous DRAM) registered w/ parity, 2Rx4, ECC, memory module, based on thirty-six 1G x 4-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:
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 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
Specifications
CL(IDD)
|
15 cycles
|
Row Cycle Time (tRCmin)
|
47.05ns(min.)
|
Refresh to Active/Refresh Command Time 1x mode (tRFCmin)
|
260ns(min.)
|
Row Active Time (tRASmin)
|
33.00ns(min.)
|
Maximum Operating Power
|
4.30W*
|
UL Rating
|
94 V - 0
|
Operating Temperature
|
0° C to +85° C
|
Storage Temperature
|
-55° C to +100
|
*Power will vary depending on the SDRAM used.
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