Skip to main content

NBT SRAMs

GSI Technology's No Bus Turnaround (NBT) product portfolio is the largest in the industry with six different densities in x18, 32, 36 and 72 bit widths. Our NBT SRAMs provide the fastest clock rates and lowest power of any in the world.


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). 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.

 

Features

  • NBT functionality allows zero wait read-write-read bus utilization
  • Fully pin-compatible NtRAM™, NoBL™, and ZBT™ SRAMs
  • LBO pin for Linear or Interleaved Burst mode
  • Byte Write (BW) and/or Global Write (GW) operation
  • Internal self-timed write cycle
  • Automatic power-down for portable applications
  • JEDEC-standard pinout and package
  • RoHS-compliant package available


Name Density Config. Cycle Time (MHz) Access Time (ns) Voltage (V) Package 6/6 RoHS Temp Special Features Status
NBT SRAMs
View 1610 products
4Mb, 9Mb, 18Mb, 36Mb, 72Mb, 144Mb, 288Mb x18, x32, x36, x72 Up to 400 As Low As 4 1.8, 2.5, 3.3 Ceramic QFP, 165 BGA, 100 TQFP, 209 BGA, 119 BGA no, yes Mil, Ind, Comm See Individual Products Production, Active
Part Number Density Configuration Cycle Time (MHz) Access Time (ns) Voltage (V) Package 6/6 RoHS Temp Special Features Status
GS8644Z18E-133I 72Mb x18 133 8.5 2.5, 3.3 165 BGA no Ind JTAG, FLXDrive Production
GS8644Z36E-250I 72Mb x36 250 6.5 2.5, 3.3 165 BGA no Ind JTAG, FLXDrive Production
GS8644Z36E-225I 72Mb x36 225 6.5 2.5, 3.3 165 BGA no Ind JTAG, FLXDrive Production
GS8644Z36E-200I 72Mb x36 200 6.5 2.5, 3.3 165 BGA no Ind JTAG, FLXDrive Production
GS8644Z36E-166I 72Mb x36 166 7 2.5, 3.3 165 BGA no Ind JTAG, FLXDrive Production
GS8644Z36E-150I 72Mb x36 150 7.5 2.5, 3.3 165 BGA no Ind JTAG, FLXDrive Production
GS8644Z36E-133I 72Mb x36 133 8.5 2.5, 3.3 165 BGA no Ind JTAG, FLXDrive Production
GS8644Z18GE-250 72Mb x18 250 6.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z18GE-225 72Mb x18 225 6.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z18GE-200 72Mb x18 200 6.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z18GE-166 72Mb x18 166 7 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z18GE-150 72Mb x18 150 7.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z18GE-133 72Mb x18 133 8.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z36GE-250 72Mb x36 250 6.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z36GE-225 72Mb x36 225 6.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z36GE-200 72Mb x36 200 6.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z36GE-166 72Mb x36 166 7 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z36GE-150 72Mb x36 150 7.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z36GE-133 72Mb x36 133 8.5 2.5, 3.3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z18GE-250I 72Mb x18 250 6.5 2.5, 3.3 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z18GE-225I 72Mb x18 225 6.5 2.5, 3.3 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z18GE-200I 72Mb x18 200 6.5 2.5, 3.3 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z18GE-166I 72Mb x18 166 7 2.5, 3.3 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z18GE-150I 72Mb x18 150 7.5 2.5, 3.3 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z18GE-133I 72Mb x18 133 8.5 2.5, 3.3 165 BGA yes Ind JTAG, FLXDrive Production