DDR SRAMs

GSI's SigmaDDR SRAMs are the acknowledged leader in the industry with their combination of capacity and performance. SigmaDDR transaction rates are unequaled by any competitors.


SigmaDDR SRAMs are synchronous memories with a common read and write data bus. “DDR” refers to their ability to transfer 2 beats of data on the data bus in a single clock cycle. SigmaDDR memories are ideal for applications that alternate between read and write operations infrequently, at operating speeds of 250 MHz and above.


GSI’s SigmaDDR devices are compatible with all competitor Double Data Rate SRAMs.

 

Name Density Config. Speed (MHz) Burst Length Read Latency (RL) On Die Termination Package 6/6 ROHS Temp Special Features Status
SigmaDDR-IVe
View 0 products
SigmaDDR-IIIe
View 89 products
72Mb, 288Mb, 144Mb x18, x36 Up to 833 2 3, 2 Weak/Strong/None 260 BGA no, yes Mil, Comm, Ind See Individual Products Production-NRND, Production, Active
SigmaDDR-II+
View 1104 products
288Mb, 144Mb, 72Mb, 36Mb, 18Mb x18, x36, x8, x9 Up to 633 2 2.5, 2 Weak/None, Weak/Strong, n/a 165 BGA yes, no Comm, Ind See Individual Products Production, Production-NRND
SigmaDDR-II
View 620 products
144Mb, 72Mb, 36Mb, 18Mb x8, x9, x18, x36 Up to 400 2, 4 1.5 n/a 165 BGA no, yes Mil, Comm, Ind See Individual Products Production-NRND, Production
SigmaSIO DDR-II
View 348 products
288Mb, 144Mb, 72Mb, 36Mb, 18Mb x18, x36, x8, x9 Up to 400 2 1.5 n/a 165 BGA no, yes Comm, Ind See Individual Products Production, Production-NRND
Part Number Density Config. Speed (MHz) Burst Length Read Latency (RL) On-Die Termination Package 6/6 RoHS Temp Special Features Status
GS8673ET36BHK-550I 72Mb x36 550 2 3, 2 Weak/Strong/None 260 BGA no Ind ECCRAM Production

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