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 1660 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, Ceramic 165 BGA | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GS8182Q09BD-250I | 18Mb | x9 | 250 | 2 | 1.5 | n/a | 165 BGA | no | Ind | none | Production |
| GS8662D37BD-333I | 72Mb | x36 | 333 | 4 | 2 | Weak/None | 165 BGA | no | Ind | none | Production |
| GS8662DT38BGD-550I | 72Mb | x36 | 550 | 4 | 2.5 | Weak/Strong | 165 BGA | yes | Ind | none | Production |
| GS81302D08GE-375I | 144Mb | x8 | 375 | 4 | 1.5 | n/a | 165 BGA | yes | Ind | none | Production-NRND |
| GS81302D20GE-450 | 144Mb | x18 | 450 | 4 | 2.5 | Weak/None | 165 BGA | yes | Comm | none | Production-NRND |
| GS8673EQ36BK-500 | 72Mb | x36 | 500 | 2 | 3, 2 | Weak/Strong/None | 260 BGA | no | Comm | ECCRAM | Production |
| GS8342D10BD-333 | 36Mb | x9 | 333 | 4 | 2 | Weak/None | 165 BGA | no | Comm | none | Production |
| GS8182Q08BD-300M | 18Mb | x8 | 300 | 2 | 1.5 | n/a | 165 BGA | no | Mil | none | Production |