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GSI Technology SRAM Product Families
Low Latency DRAMs
quad
ddr
sync
 
 
 
 

New 72Mbit SigmaQuad-II/DDR-II, SigmaQuad-II/DDR-II+,
and SigmaQuad-IIIe/DDR-IIIe ECCRAMs™

GSI Technology is now shipping the industry's first family of ultra-low error rate SRAMs—GSI's ECCRAMs™. The new 72Mbit devices transparently encode and store error correction codes with every write and then read, decode, and, if necessary, correct bit errors using a fast ECC algorithim, reducing the SRAM's Soft Error Rate (SER) to less than 0.002 FITs/Mb—a 5-order-of-magnitude improvement over comparable technologies with no on-chip ECC. View the tables below for more information regarding GSI Technology's ECCRAMs.  
Press Release
Presentation
FAQ
Technical Notes
On-Chip ECC: Addressing SRAM
SER in a COTS World
(Presentation)

SigmaQuad-II and SigmaDDR-II SRAMs

SigmaQuad-II Burst of 2 SRAMs
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
333, 300, 250, 200
E/GE
Samples
SigmaQuad-II Burst of 4 SRAMs
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
333, 300, 250, 200
E/GE
Samples
SigmaDDR-II Burst of 2 SRAMs
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
333, 300, 250, 200
E/GE
Samples

SigmaQuad-II+ and SigmaDDR-II+ SRAMs

SigmaQuad-II+ Burst of 2 SRAMs
Read Latency = 2.5
On-Die Termination Option
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
500, 450, 400
E/GE
Samples
SigmaQuad-II+ Burst of 2 SRAMs
Read Latency = 2.0
On-Die Termination Option
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
400, 375, 333, 300
E/GE
Samples
SigmaQuad-II+ Burst of 4 SRAMs
Read Latency = 2.5
On-Die Termination Option
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
633, 550, 500, 450, 400
E/GE
Samples
SigmaQuad-II+ Burst of 4 SRAMs
Read Latency = 2.0
On-Die Termination Option
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
400, 375, 333, 300
E/GE
Samples
SigmaDDR-II+ Burst of 2 SRAMs
Read Latency = 2.5
On-Die Termination Option
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
633, 550, 500, 450, 400
E/GE
Samples
SigmaDDR-II+ Burst of 2 SRAMs
Read Latency = 2.0
On-Die Termination Option
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
FT Access
Time
(ns)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.8 V VDD;
1.5/1.8 V I/O
n/a
400, 375, 333, 300
E/GE
Samples

SigmaQuad-IIIe and SigmaDDR-IIIe SRAMs

SigmaQuad-IIIe Burst of 2 SRAMs
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
Read Latency
(RL)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
675, 450
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
625, 400
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
550, 375
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
3.0, 2.0
500, 333
K
Samples
PDF
SigmaQuad-IIIe Burst of 4 SRAMs
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
Read Latency
(RL)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
675, 450
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
625, 400
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
550, 375
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
3.0, 2.0
500, 333
K
Samples
PDF
SigmaDDR-IIIe Burst of 2 SRAMs
Part No.
Org.
Operating
Mode
VDD and
I/O
Voltage
Read Latency
(RL)
PL
Frequency
(MHz)
Pkg.
Status
Datasheet
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
675, 450
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
625, 400
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
 3.0, 2.0
550, 375
K
Samples
PDF
2M x 36
4M x 18
PL
1.35 V VDD;
1.2/1.5 V I/O
3.0, 2.0
500, 333
K
Samples
PDF

 

 

 
 
 
 
 
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