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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 2, 245 products
144Mb, 72Mb, 36Mb, 18Mb, 9Mb, 4Mb, 288Mb x18, x36, x72, x32 Up to 400 As Low As 4 2_5,3_3, 2_5,1_8, 1_8,2_5, 2.5, 3.3, 1.8 119 BGA, 209 BGA, 100 TQFP, 165 BGA, Ceramic QFP no, yes Comm, Ind, Mil See Individual Products Production, Active, Production-NRND
Part Number Density Config. Cycle Time (MHz) Access Time (ns) Voltage (V) Package 6/6 ROHS Temp Special Features Status
GS81284Z18B-250 144Mb x18 250 6.5 2_5,3_3 119 BGA no Comm JTAG, FLXDrive Production
GS81284Z36GB-200 144Mb x36 200 7.5 2_5,3_3 119 BGA yes Comm JTAG, FLXDrive Production
GS81284Z18GB-200V 144Mb x18 200 7.5 2_5,1_8 119 BGA yes Comm JTAG, FLXDrive Production
GS8640Z36GT-250 72Mb x36 250 6.5 2_5,3_3 100 TQFP yes Comm none Production
GS8640FZ36GT-6.5 72Mb x36 n/a 6.5 2_5,3_3 100 TQFP yes Comm FT Only Production
GS8642Z36B-250 72Mb x36 250 6.5 2_5,3_3 119 BGA no Comm JTAG, FLXDrive Production
GS8642Z36GB-250 72Mb x36 250 6.5 2_5,3_3 119 BGA yes Comm JTAG, FLXDrive Production
GS8642Z72C-250I 72Mb x72 250 6.5 2_5,3_3 209 BGA no Ind JTAG, FLXDrive Production
GS8640Z36GT-167V 72Mb x36 167 8 1_8,2_5 100 TQFP yes Comm none Production
GS8640FZ36GT-250IV 72Mb x36 250 6.5 1_8,2_5 100 TQFP yes Ind none Production
GS8642Z18GB-200V 72Mb x18 200 7.5 1_8,2_5 119 BGA yes Comm JTAG, FLXDrive Production
GS8642Z72GC-167V 72Mb x72 167 8 1_8,2_5 209 BGA yes Comm JTAG, FLXDrive Production
GS8644Z36E-166 72Mb x36 166 7 2_5,3_3 165 BGA no Comm JTAG, FLXDrive Production
GS8644Z18GE-225 72Mb x18 225 6.5 2_5,3_3 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z18GE-133I 72Mb x18 133 8.5 2_5,3_3 165 BGA yes Ind JTAG, FLXDrive Production
GS8644Z36E-166V 72Mb x36 166 7 1_8,2_5 165 BGA no Comm JTAG, FLXDrive Production
GS8644Z18GE-225V 72Mb x18 225 6.5 1_8,2_5 165 BGA yes Comm JTAG, FLXDrive Production
GS8644Z18GE-133IV 72Mb x18 133 8.5 1_8,2_5 165 BGA yes Ind JTAG, FLXDrive Production
GS8320Z18AGT-150 36Mb x18 150 7.5 2_5,3_3 100 TQFP yes Comm none Production
GS8320Z36AGT-250I 36Mb x36 250 5.5 2_5,3_3 100 TQFP yes Ind none Production
GS8321Z18AD-150 36Mb x18 150 7.5 2_5,3_3 165 BGA no Comm JTAG Production
GS8321Z18AD-250I 36Mb x18 250 5.5 2_5,3_3 165 BGA no Ind JTAG Production
GS8321Z18AGD-375 36Mb x18 375 4.2 2_5,3_3 165 BGA yes Comm JTAG Production
GS8321Z36AGD-150 36Mb x36 150 7.5 2_5,3_3 165 BGA yes Comm JTAG Production
GS8321Z36AGD-250I 36Mb x36 250 5.5 2_5,3_3 165 BGA yes Ind JTAG Production