Functional Description

The GS82564Z18/36 is a 288Mbit Synchronous Static SRAM.

GSIs NBT SRAMs, like ZBT, NtRAM, NoBL or other pipelined read/double late write or flow through read/single late write SRAMs, allow utilization of all available bus bandwidth by eliminating the need to insert deselect cycles when the device is switched from read to write cycles.

Features

• NBT (No Bus Turn Around) functionality allows zero wait

Read-Write-Read bus utilization; fully pin-compatible with

both pipelined and flow through NtRAM™, NoBL™ and

ZBT™ SRAMs

• 2.5 V or 3.3 V +10/–10 core power supply

• 2.5 V or 3.3 V I/O supply

• User-configurable Pipeline and Flow Through mode

• ZQ mode pin for user-selectable high/low output drive

• IEEE 1149.1 JTAG-compatible Boundary Scan

• LBO pin for Linear or Interleave Burst mode

• Pin-compatible with 4Mb, 9Mb, 18Mb, 36Mb, and 72Mb

devices

• Byte write operation (9-bit Bytes)

• 3 chip enable signals for easy depth expansion

• ZZ Pin for automatic power-down

• RoHS-compliant 119- and 165-bump BGA packages