This document describes ValueRAM's KVR21E15D8/16 is a 2G x 72-bit (16GB) DDR4-2133 CL15 SDRAM (Synchronous DRAM), 2Rx8, ECC, memory module, based on eighteen 1G 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:
Features:
??? 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
CL (IDD)
15 Cycles
Row Cycle Time (tRCmin)
46.5ns (min)
Refresh to Active/Refresh Command Time (tRFCmin)
350ns (min)
Row Active Time (tRASmin)
33ns (min)
Maximum Operating Power
TDB
UL Rating
94V to 0
Operating Temperature
0 C to +85 C
Operating Temperature
0 C to +85 C
Item Dimension (L"xW"xH")
3 x 7 x 1
Weight
1.00 lb
Warranty Information
Lifetime Manufacture