Quad SRAMs

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


SigmaQuad SRAMs are synchronous memories with separate read and write data buses. “Quad” refers to their ability to transfer 4 beats of data (2 beats per data bus) in a single clock cycle. SigmaQuad memories are ideal for applications that alternate between read and write operations frequently, at operating speeds of 250 MHz and above.


GSI’s SigmaQuad devices are compatible with all competitor Quad Data Rate SRAMs.

 

Name Density Config. Speed (MHz) Burst Length Read Latency (RL) On-Die Termination Package 6/6 ROHS Temp Special Features Status
SigmaQuad-IVe
View 48 products 		144Mb x18, x36 Up to 1333 4, 2 6, 5 Weak/Strong/None 260 BGA yes Comm, Ind, Mil See Individual Products Production, Active
SigmaQuad-IIIe
View 172 products 		72Mb, 144Mb, 288Mb x18, x36 Up to 833 4, 2 3, 2 Weak/Strong/None 260 BGA no, yes Mil, Comm, Ind See Individual Products Production, Active
SigmaQuad-II+
View 1852 products 		288Mb, 144Mb, 72Mb, 36Mb, 18Mb x18, x36, x8, x9 Up to 633 2, 4 2.5, 2 Weak/None, Weak/Strong, n/a 165 BGA, 165 CCGA, 165 CLGA yes, no Comm, Ind, Mil See Individual Products Production, Production-NRND, Active
SigmaQuad-II
View 752 products 		288Mb, 144Mb, 72Mb, 36Mb, 18Mb x18, x36, x8, x9 Up to 400 4, 2 1.5 n/a 165 BGA no, yes Comm, Ind, Mil See Individual Products Production, Production-NRND, Contact Sales
SigmaQuad-I
View 16 products 		18Mb x18, x36 Up to 200 2 1.5 n/a 165 BGA no, yes Comm, Ind See Individual Products Production
Part Number Density Config. Speed (MHz) Burst Length Read Latency (RL) On-Die Termination Package 6/6 RoHS Temp Special Features Status
GS8182D37BD-333 18Mb x36 333 4 2 n/a 165 BGA no Comm none Production
GS8342D36BD-400 36Mb x36 400 4 1.5 n/a 165 BGA no Comm none Production
GS8662QT19BD-200I 72Mb x18 200 2 2 Weak/Strong 165 BGA no Ind none Production
GS8662D36BD-250 72Mb x36 250 4 1.5 n/a 165 BGA no Comm none Production
GS81314LD36GK-106I 144Mb x36 1066 4 6 Weak/Strong/None 260 BGA yes Ind ECCRAM,1.2 V HSTL I/O,Multi-Bank Production
GS81302Q19GE-250 144Mb x18 250 2 2 Weak/None 165 BGA yes Comm none Production-NRND
GS8342DT10BGD-333 36Mb x9 333 4 2 Weak/Strong 165 BGA yes Comm none Production
GS8662D10BGD-450 72Mb x9 450 4 2 Weak/None 165 BGA yes Comm none Production
GS81302D09GE-350 144Mb x9 350 4 1.5 n/a 165 BGA yes Comm none Production-NRND
GS8182Q36BGD-133I 18Mb x36 133 2 1.5 n/a 165 BGA yes Ind none Production
GS81302D07E-350I 144Mb x8 350 4 2 Weak/Strong 165 BGA no Ind none Production-NRND
GS8342D38BD-350 36Mb x36 350 4 2.5 Weak/None 165 BGA no Comm none Production
GS81302D08E-333 144Mb x8 333 4 1.5 n/a 165 BGA no Comm none Production-NRND
GS8662D06BGD-400I 72Mb x8 400 4 2.5 Weak/None 165 BGA yes Ind none Production
GS81302DT07E-350I 144Mb x8 350 4 2 Weak/Strong 165 BGA no Ind none Production-NRND
GS81302QT19GE-250I 144Mb x18 250 2 2 Weak/Strong 165 BGA yes Ind none Production-NRND
GS8342DT06BGD-550I 36Mb x8 550 4 2.5 Weak/Strong 165 BGA yes Ind none Production
GS8342Q37BD-200 36Mb x36 200 2 2 Weak/None 165 BGA no Comm none Production
GS82582D18E-333 288Mb x18 333 4 1.5 n/a 165 BGA no Comm none Production
GS82582Q19GE-400I 288Mb x18 400 2 2 Weak/None 165 BGA yes Ind none Production

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