GSI SigmaQuad II SRAM Series

Product Overview

SigmaQuad™ SRAMs

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.

SigmaDDR™ SRAMs

SigmaDDR SRAMs are synchronous memories with a common read and write data bus. “DDR” refers to their ability to transfer 2 beats of data on the data bus in a single clock cycle. GSI’s SigmaQuad and SigmaDDR devices are compatible with all competitor Quad Data Rate and Double Data Rate SRAMs, respectively.

Features

• 1.1G memory transactions per second (SigmaQuad-II+™) • Extensive range of design options—Quad & Double Data Rates, 1.5–2.5 cycle Read Latencies, 2- and 4-word data bursts • User-configurable signal termination and output drive settings • Densities for every performance point—18Mbit up to 288Mbit • Constructed using foundry-standard CMOS and 165-bump BGA packaging (both leaded and RoHS-compliant options)

Parts

GS8662D18BD-250I

GSI SigmaQuad-II SRAM 72Mb, x18, 250 MHz 165 BGA Industrial

In stock

GS8662D18BGD-250I

GSI SigmaQuad-II SRAM 72Mb, x18, 250 MHz 165 BGA Industrial – R0HS

In stock

GS8662Q36BGD-200

GSI SigmaQuad-II SRAM 72Mb, x36, 200 MHz 165 BGA Commercial

In stock

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