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This document describes ValueRAM’s KVR26S19S8/16 is a 2G x 64-bit (16GB) DDR4-2666 CL19 SDRAM (Synchronous DRAM), 1Rx8, non-ECC, memory module, based on eight 2G x 8-bit FBGAcomponents. The SPD is programmed to JEDEC standard latency DDR4-2666 timing of 19-19-19 at 1.2V. This 260-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
Single-rank
On-board I2 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)
Fly-by topology
Terminated control command and address bus
PCB: Height 1.18 (30.00mm)
RoHS Compliant and Halogen-Free
Specification:
| CL(IDD) | 19 cycles |
| Row Cycle Time (tRCmin) | 45.75ns(min.) |
| Refresh to Active/Refresh Command Time (tRFCmin) |
350ns(min.) |
| Row Active Time (tRASmin) | 32ns(min.) |
| UL Rating | 94 V – 0 |
| Operating Temperature | 0o C to +85o C |
| Storage Temperature | -55o C to +100o C |
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