GSI ‘No Bus Turnaround’ (NBT™) SRAM

Product Overview

GSI SyncBurst™ and NoBusTurnaround™ SRAMs have been the workhorses for midrange data acquisition designs for over 15 years and are available in a huge assortment of densities, packages and design options. These SRAMs also come with the best long-term memory IC support plan in the business.

Synchronous Burst (SyncBurst™) SRAMs

SyncBurst SRAMs provide a “burst” of 2 to 4 words in response to a single clock signal.

No Bus Turnaround (NBT™) SRAMs

NBT SRAMs are synchronous, burst-capable memories with a simplified interface that is designed to use a data bus’s maximum bandwidth. NBT devices do not require “turnaround” cycles (idle clock cycles between a read and write operation).

SyncBurst and NBT SRAMs are used in networking, industrial, automotive and medical imaging applications where a mid-range performance point (typically a 333–166 MHz clock rate) is required.


• Pin-compatible across multiple densities allows easy upgrades
• Constructed using foundry-standard CMOS, 100-pin TQFP,
and 119/165/209-ball BGA packaging (both leaded and
RoHS-compliant BGA options)
• Industrial temperature support for all densities and
functional options. Extended and military temperature
support upon request.



GSI Tech – GSI NBT SRAM 36 Mb, 2Mx18, 150 MHz 100 00 TQFP

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GSI Tech – GSI NBT SRAM 18 Mb, x36, 200 MHz 165 BGA

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