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GS81313LD18 数据表(PDF) 1 Page - GSI Technology

部件名 GS81313LD18
功能描述  144Mb SigmaQuad-IIIe??Burst of 4 ECCRAM?
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制造商  GSI [GSI Technology]
网页  http://www.gsitechnology.com
标志 GSI - GSI Technology

GS81313LD18 数据表(HTML) 1 Page - GSI Technology

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GS81313LD18/36GK-833/714/625
144Mb SigmaQuad-IIIe™
Burst of 4 ECCRAM™
Up to 833 MHz
1.25V ~ 1.3V VDD
1.2V ~ 1.3V VDDQ
Rev: 1.13 7/2016
1/26
© 2014, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
260-Pin BGA
Com & Ind Temp
HSTL I/O
Features
• 4Mb x 36 and 8Mb x 18 organizations available
• 833 MHz maximum operating frequency
• 833 MT/s peak transaction rate (in millions per second)
• 120 Gb/s peak data bandwidth (in x36 devices)
• Separate I/O DDR Data Buses
• Non-multiplexed SDR Address Bus
• One operation - Read or Write - per clock cycle
• Burst of 4 Read and Write operations
• 3 cycle Read Latency
• On-chip ECC with virtually zero SER
• 1.25V ~ 1.3V core voltage
• 1.2V ~ 1.3V HSTL I/O interface
• Configurable ODT (on-die termination)
• ZQ pin for programmable driver impedance
• ZT pin for programmable ODT impedance
• IEEE 1149.1 JTAG-compliant Boundary Scan
• 260-pin, 14 mm x 22 mm, 1 mm ball pitch, 6/6 RoHS-
compliant BGA package
SigmaQuad-IIIe™ Family Overview
SigmaQuad-IIIe ECCRAMs are the Separate I/O half of the
SigmaQuad-IIIe/SigmaDDR-IIIe family of high performance
ECCRAMs. Although very similar to GSI's second generation
of networking SRAMs (the SigmaQuad-II/SigmaDDR-II
family), these third generation devices offer several new
features that help enable significantly higher performance.
Clocking and Addressing Schemes
The GS81313LD18/36GK SigmaQuad-IIIe ECCRAMs are
synchronous devices. They employ three pairs of positive and
negative input clocks; one pair of master clocks, CK and CK,
and two pairs of write data clocks, KD[1:0] and KD[1:0]. All
six input clocks are single-ended; that is, each is received by a
dedicated input buffer.
CK and CK are used to latch address and control inputs, and to
control all output timing. KD[1:0] and KD[1:0] are used solely
to latch data inputs.
Each internal read and write operation in a SigmaQuad-IIIe B4
ECCRAM is four times wider than the device I/O bus. An
input data bus de-multiplexer is used to accumulate incoming
data before it is simultaneously written to the memory array.
An output data multiplexer is used to capture the data produced
from a single memory array read and then route it to the
appropriate output drivers as needed. Therefore, the address
field of a SigmaQuad-IIIe B4 ECCRAM is always two address
pins less than the advertised index depth (e.g. the 8M x 18 has
2M addressable index).
On-Chip Error Correction Code
GSI's ECCRAMs implement an ECC algorithm that detects
and corrects all single-bit memory errors, including those
induced by SER events such as cosmic rays, alpha particles,
etc. The resulting Soft Error Rate of these devices is
anticipated to be <0.002 FITs/Mb — a 5-order-of-magnitude
improvement over comparable SRAMs with no on-chip ECC,
which typically have an SER of 200 FITs/Mb or more.
All quoted SER values are at sea level in New York City.
Parameter Synopsis
Speed Grade
Max Operating Frequency
Read Latency
VDD
-833
833 MHz
3 cycles
1.2V to 1.35V
-714
714 MHz
3 cycles
1.2V to 1.35V
-625
625 MHz
3 cycles
1.2V to 1.35V


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