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 1792 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
GS8182Q09BGD-300 18Mb x9 300 2 1.5 n/a 165 BGA yes Comm none Production
GS8342D18BD-400 36Mb x18 400 4 1.5 n/a 165 BGA no Comm none Production
GS81302DT10E-300I 144Mb x9 300 4 2 Weak/Strong 165 BGA no Ind none Production-NRND
GS81302Q19GE-300 144Mb x18 300 2 2 Weak/None 165 BGA yes Comm none Production-NRND
GS82582QT37GE-333 288Mb x36 333 2 2 Weak/Strong 165 BGA yes Comm none Production
GS82612DT19LE-350MV 288Mb x18 350 4 2 Weak/Strong 165 CLGA no Mil Rad-Hard,Class-V Screening Active
GS8662DT37BGD-400 72Mb x36 400 4 2 Weak/Strong 165 BGA yes Comm none Production
GS81314LQ37GK-933 144Mb x36 933 2 5 Weak/Strong/None 260 BGA yes Comm ECCRAM,1.2 V HSTL I/O,Single-Bank Production
GS8662DT19BD-300 72Mb x18 300 4 2 Weak/Strong 165 BGA no Comm none Production
GS8662D08BGD-250 72Mb x8 250 4 1.5 n/a 165 BGA yes Comm none Production
GS8182Q36BD-250 18Mb x36 250 2 1.5 n/a 165 BGA no Comm none Production
GS8662DT20BGD-450I 72Mb x18 450 4 2.5 Weak/Strong 165 BGA yes Ind none Production
GS8342DT10BGD-300I 36Mb x9 300 4 2 Weak/Strong 165 BGA yes Ind none Production
GS8662D36BD-350M 72Mb x36 350 4 1.5 n/a 165 BGA no Mil none Contact Sales
GS8182D09BD-400 18Mb x9 400 4 1.5 n/a 165 BGA no Comm none Production
GS81302D36E-250I 144Mb x36 250 4 1.5 n/a 165 BGA no Ind none Production-NRND
GS82612DT37CE-250MS 288Mb x36 250 4 2 Weak/Strong 165 CCGA no Mil Rad-Hard,ES Sampling Screening Active
GS8342D06BD-500I 36Mb x8 500 4 2.5 Weak/None 165 BGA no Ind none Production
GS8342DT11BGD-350I 36Mb x9 350 4 2.5 Weak/Strong 165 BGA yes Ind none Production
GS8662D38BD-550I 72Mb x36 550 4 2.5 Weak/None 165 BGA no Ind none Production

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