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GSI Technology - 288Mb SigmaQuad-II+ Burst of 4 SRAM

Numéro de référence GS82582DT21GE
Description 288Mb SigmaQuad-II+ Burst of 4 SRAM
Fabricant GSI Technology 
Logo GSI Technology 





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GS82582DT21GE fiche technique
165-Bump BGA
Commercial Temp
Industrial Temp
GS82582DT21/39GE-675S/633S/550S
288Mb SigmaQuad-II+
Burst of 4 SRAM
Up to 675 MHz
1.8 V VDD
1.5 V I/O
Features
• For use with GSI FPGA-based Controller IP
• 3.0 Clock Latency
• Simultaneous Read and Write SigmaQuad™ Interface
• JEDEC-standard pinout and package
• Dual Double Data Rate interface
• Byte Write controls sampled at data-in time
• Burst of 4 Read and Write
• Dual-Range On-Die Termination (ODT) on Data (D), Byte
Write (BW), and Clock (K, K) inputs
• 1.8 V +100/–100 mV core power supply
• 1.5 V HSTL Interface
• Pipelined read operation
• Fully coherent read and write pipelines
• ZQ pin for programmable output drive strength
• Data Valid Pin (QVLD) Support
• IEEE 1149.1 JTAG-compliant Boundary Scan
• 165-bump, 15 mm x 17 mm, 1 mm bump pitch BGA package
• 6/6 RoHS-compliant 165-bump BGA package
SigmaQuadFamily Overview
The GS82582DT21/39GE are built in compliance with the
SigmaQuad-II+ SRAM pinout standard for Separate I/O
synchronous SRAMs. They are 301,989,888-bit (288Mb)
SRAMs. The GS82582DT21/39GE SigmaQuad SRAMs are
just one element in a family of low power, low voltage HSTL
I/O SRAMs designed to operate at the speeds needed to
implement economical high performance networking systems.
Clocking and Addressing Schemes
The GS82582DT21/39GE SigmaQuad-II+ SRAMs are
synchronous devices. They employ two input register clock
inputs, K and K. K and K are independent single-ended clock
inputs, not differential inputs to a single differential clock input
buffer.
Each internal read and write operation in a SigmaQuad-II+ B4
RAM 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-II+ B4 RAM is always two address pins
less than the advertised index depth (e.g., the 16M x 18 has a
4M addressable index).
tKHKH
Parameter Synopsis
-675S
1.48 ns
-633S
1.58 ns
-550S
1.81 ns
Rev: 1.01 4/2016
1/27
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2015, GSI Technology

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