NBT SRAMs

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
GS8644Z36GE-200IV 72Mb x36 200 6.5 1.8, 2.5 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z36GE-166IV 72Mb x36 166 7 1.8, 2.5 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z36GE-150IV 72Mb x36 150 7.5 1.8, 2.5 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z36GE-133IV 72Mb x36 133 8.5 1.8, 2.5 165 BGA yes Ind JTAG, FLXDrive Production
GS8322Z18AB-375M 36Mb x18 375 4.2 2.5, 3.3 119 BGA no Mil JTAG, FLXDrive Production
GS8322Z36AB-375M 36Mb x36 375 4.2 2.5, 3.3 119 BGA no Mil JTAG, FLXDrive Production
GS8322Z18AD-375M 36Mb x18 375 4.2 2.5, 3.3 165 BGA no Mil JTAG, FLXDrive Production
GS8322Z36AD-375M 36Mb x36 375 4.2 2.5, 3.3 165 BGA no Mil JTAG, FLXDrive Production
GS8320Z18AGT-400 36Mb x18 400 4 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z18AGT-375 36Mb x18 375 4.2 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z18AGT-333 36Mb x18 333 4.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z18AGT-250 36Mb x18 250 5.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z18AGT-200 36Mb x18 200 6.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z18AGT-150 36Mb x18 150 7.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z36AGT-400 36Mb x36 400 4 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z36AGT-375 36Mb x36 375 4.2 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z36AGT-333 36Mb x36 333 4.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z36AGT-250 36Mb x36 250 5.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z36AGT-200 36Mb x36 200 6.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z36AGT-150 36Mb x36 150 7.5 2.5, 3.3 100 TQFP yes Comm none Production
GS8320Z18AGT-400I 36Mb x18 400 4 2.5, 3.3 100 TQFP yes Ind none Production
GS8320Z18AGT-375I 36Mb x18 375 4.2 2.5, 3.3 100 TQFP yes Ind none Production
GS8320Z18AGT-333I 36Mb x18 333 4.5 2.5, 3.3 100 TQFP yes Ind none Production
GS8320Z18AGT-250I 36Mb x18 250 5.5 2.5, 3.3 100 TQFP yes Ind none Production
GS8320Z18AGT-200I 36Mb x18 200 6.5 2.5, 3.3 100 TQFP yes Ind 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

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