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 1616 products
4Mb, 9Mb, 18Mb, 36Mb, 72Mb, 144Mb, 288Mb x18, x32, x36, x72 Up to 400 As Low As 4 1.8, 2.5, 3.3 165 BGA, 100 TQFP, 209 BGA, 119 BGA yes, no 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
GS81284Z18B-167V 144Mb x18 167 8 2.5, 1.8 119 BGA no Comm JTAG, FLXDrive Production
GS81284Z36B-200V 144Mb x36 200 7.5 2.5, 1.8 119 BGA no Comm JTAG, FLXDrive Production
GS81284Z36B-167V 144Mb x36 167 8 2.5, 1.8 119 BGA no Comm JTAG, FLXDrive Production
GS81284Z18B-200IV 144Mb x18 200 7.5 2.5, 1.8 119 BGA no Ind JTAG, FLXDrive Production
GS81284Z18B-167IV 144Mb x18 167 8 2.5, 1.8 119 BGA no Ind JTAG, FLXDrive Production
GS81284Z36B-200IV 144Mb x36 200 7.5 2.5, 1.8 119 BGA no Ind JTAG, FLXDrive Production
GS81284Z36B-167IV 144Mb x36 167 8 2.5, 1.8 119 BGA no Ind JTAG, FLXDrive Production
GS81284Z18GB-200V 144Mb x18 200 7.5 2.5, 1.8 119 BGA yes Comm JTAG, FLXDrive Production
GS81284Z18GB-167V 144Mb x18 167 8 2.5, 1.8 119 BGA yes Comm JTAG, FLXDrive Production
GS81284Z36GB-200V 144Mb x36 200 7.5 2.5, 1.8 119 BGA yes Comm JTAG, FLXDrive Production
GS81284Z36GB-167V 144Mb x36 167 8 2.5, 1.8 119 BGA yes Comm JTAG, FLXDrive Production
GS81284Z18GB-200IV 144Mb x18 200 7.5 2.5, 1.8 119 BGA yes Ind JTAG, FLXDrive Production
GS81284Z18GB-167IV 144Mb x18 167 8 2.5, 1.8 119 BGA yes Ind JTAG, FLXDrive Production
GS81284Z36GB-200IV 144Mb x36 200 7.5 2.5, 1.8 119 BGA yes Ind JTAG, FLXDrive Production
GS81284Z36GB-167IV 144Mb x36 167 8 2.5, 1.8 119 BGA yes Ind JTAG, FLXDrive Production
GS8642Z18B-250M 72Mb x18 250 6.5 2.5, 3.3 119 BGA no Mil JTAG, FLXDrive Production
GS8642Z36B-250M 72Mb x36 250 6.5 2.5, 3.3 119 BGA no Mil JTAG, FLXDrive Production
GS8642Z72C-250M 72Mb x72 250 6.5 2.5, 3.3 209 BGA no Mil JTAG, FLXDrive Production
GS8640Z18GT-300 72Mb x18 300 5.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8640Z18GT-250 72Mb x18 250 6.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8640Z18GT-200 72Mb x18 200 7.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8640Z18GT-167 72Mb x18 167 8 2.5, 3.3 100 TQFP yes Comm none Production
GS8640Z36GT-300 72Mb x36 300 5.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8640Z36GT-250 72Mb x36 250 6.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8640Z36GT-200 72Mb x36 200 7.5 2.5, 3.3 100 TQFP yes Comm none Production

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