This document describes Value RAM's 256M x 64-bit 2GB (2048MB) DDR3-1333 CL9 SDRAM (Synchronous DRAM) Memory Module based on sixteen 128M x 8-bit DDR3-1333 FBGA components. The SPD is programmed to JEDEC Standard latency 1333Mhz timing of 9-9-9 at 1.5V. This 240-pin DIMM uses gold contact fingers and requires +1.5V.

Features

JEDEC standard 1.5V 0.075V Power Supply
VDDQ = 1.5V 0.075V
667MHz fCK for 1333Mb/sec/pin
8 independent internal bank
Programmable CAS Latency: 5,6,7,8,9,10
Posted CAS
Programmable Additive Latency: 0, CL - 2, or CL - 1 clock
Programmable CAS Write Latency(CWL) = 9(DDR3-1333)
8-bit pre-fetch
Burst Length: 8 (Interleave without any limit, sequential with starting address 000 only), 4 with tCCD = 4
which does not allow seamless read or write [either on the fly using A12 or MRS]
Bi-directional Differential Data Strobe
Internal(self) calibration : Internal self calibration through ZQ pin (RZQ : 240 ohm 1%)
On Die Termination using ODT pin
Average Refresh Period 7.8us at lower then TCASE 85C, 3.9us at 85C < TCASE . 95C
Asynchronous Reset
1066Mbps CL7 doesnt have backward compatibility with 800Mbps CL5
PCB : Height 1.180 (30.00mm), double sided component

Performance

CL(IDD) 9 cycles
Row Cycle Time (tRCmin) 49.5ns (min.)
Refresh to Active/Refresh Command Time (tRFCmin) 90ns
Row Active Time (tRASmin) 36ns (min.)
Power TBD W (operating)
UL Rating 94 V - 0
Operating Temperature 0o C to 85o C
Storage Temperature -55o C to +100o C