(GS8642xxB/C-xxxV) 4M x 18 / 2M x 36/ 1M x 72 72Mb S/DCD Sync Burst SRAMs
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Preliminary GS864218/36/72(B/C)-xxxV
119- & 209-Pin BGA Commercial Temp Industrial Temp Features
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Description
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Preliminary GS864218/36/72(B/C)-xxxV
119- & 209-Pin BGA Commercial Temp Industrial Temp Features
4M x 18, 2M x 36, 1M x 72 72Mb S/DCD Sync Burst SRAMs
250 MHz–167 MHz 1.8 V or 2.5 V VDD 1.8 V or 2.5 V I/O
FT pin for user-configurable flow through or pipeline operation Single/Dual Cycle Deselect selectable IEEE 1149.1 JTAG-compatible Boundary Scan ZQ mode pin for user-selectable high/low output drive 1.8 V or 2.5 V core power supply 1.8 V or 2.5 V I/O supply LBO pin for Linear or Interleaved Burst mode Internal input resistors on mode pins allow floating mode pins Default to SCD x18/x36 Interleaved Pipeline mode Byte Write (BW) and/or Global Write (GW) operation Internal self-timed write cycle Automatic power-down for portable applications JEDEC-standard 119- and 209-bump BGA package RoHS-compliant 119- and 209-bump BGA packages available
Flow Through/Pipeline Reads The function of the Data Output register can be controlled by the user via the FT mode . Holding the FT mode pin low places the RAM in Flow Through mode, causing output data to bypass the Data Output Register. Holding FT high places the RAM in Pipeline mode, activating the rising-edge-triggered Data Output Register. SCD and DCD Pipelined Reads The GS864218/36/72(B/C)-xxxV is a SCD (Single Cycle Deselect) and DCD (Dual Cycle Deselect) pipelined synchronous SRAM. DCD SRAMs pipeline disable commands to the same degree as read commands. SCD SRAMs pipeline deselect c...
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