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 Features Status
SigmaQuad-IVe
View 84 products
144Mb x18, x36 Up to 1333 4, 2 6, 5 Weak/Strong/None 260 BGA yes Comm, Ind, Mil See Individual Products Production
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
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 yes, no Comm, Ind See Individual Products Production, NRND, Active
SigmaQuad-II
View 876 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, Contact Sales, NRND, Production-NRND, Active
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 Features Status
GS8342QT07BD-333I 36Mb x8 333 2 2 Weak/Strong 165 BGA no Ind Production
GS8182D09BD-250 18Mb x9 250 4 1.5 n/a 165 BGA no Comm Production
GS81302D37E-450 144Mb x36 450 4 2 Weak/None 165 BGA no Comm Production
GS8662D11BD-500I 72Mb x9 500 4 2.5 Weak/None 165 BGA no Ind Production
GS8672Q18BE-200I 72Mb x18 200 2 1.5 n/a 165 BGA no Ind ECCRAM NRND
GS8342DT20BGD-550 36Mb x18 550 4 2.5 Weak/Strong 165 BGA yes Comm Production
GS81314LD37GK-933 144Mb x36 933 4 5 Weak/Strong/None 260 BGA yes Comm ECCRAM, 1.2 V HSTL I/O, Single-Bank Production
GS82582DT20GE-550 288Mb x18 550 4 2.5 Weak/Strong 165 BGA yes Comm Production
GS8662DT07BGD-400I 72Mb x8 400 4 2 Weak/Strong 165 BGA yes Ind Production
GS8342D36BGD-333I 36Mb x36 333 4 1.5 n/a 165 BGA yes Ind Production
GS81302DT37E-450 144Mb x36 450 4 2 Weak/Strong 165 BGA no Comm Production
GS81302D09GE-300I 144Mb x9 300 4 1.5 n/a 165 BGA yes Ind Production
GS8342QT19BGD-357 36Mb x18 357 2 2 Weak/Strong 165 BGA yes Comm Production
GS82583EQ36GK-500I 288Mb x36 500 2 3 Weak/Strong/None 260 BGA yes Ind Production
GS82582Q20GE-450 288Mb x18 450 2 2.5 Weak/None 165 BGA yes Comm Production
GS8662Q37BGD-200I 72Mb x36 200 2 2 Weak/None 165 BGA yes Ind Production
GS8342Q08BD-250I 36Mb x8 250 2 1.5 n/a 165 BGA no Ind Production
GS81302D11E-350I 144Mb x9 350 4 2.5 Weak/None 165 BGA no Ind Production
GS81302D18E-350M 144Mb x18 350 4 1.5 n/a 165 BGA no Mil Contact Sales
GS8342DT19BD-400 36Mb x18 400 4 2 Weak/Strong 165 BGA no Comm Production

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