GS8320Z18AGT-333I

Memory IC Overview

The GS8320Z18AGT-333I is a 36Mbit Synchronous Static RAM manufactured by GSI Technology Inc. It features a 2M x 18 organization and operates at a maximum clock frequency of 333 MHz with a cycle time of 4.5 ns. The device supports both 2.5 V and 3.3 V core and I/O power supplies, ranging from 2.3 V to 3.6 V. It utilizes a 100-pin TQFP package and supports an industrial operating temperature range of -40°C to +85°C.

Memory IC Feature Summary

• NBT (No Bus Turn Around) functionality enables zero wait read-write-read bus utilization without deselect cycles.
• User-configurable Pipeline and Flow Through modes via the FT pin for flexible data latency management.
• Supports Linear or Interleave Burst modes controlled by the LBO pin.
• Includes a ZZ pin for asynchronous automatic power-down control.

Memory IC Applications

• High-speed digital signal processing systems
• Network infrastructure equipment requiring low-latency memory
• Industrial control applications with wide temperature requirements

Memory IC Procurement Notes

Verify the specific speed grade suffix matches the required system timing constraints. Confirm that the industrial temperature rating (-40°C to +85°C) aligns with the operational environment. Ensure the 100-pin TQFP footprint is compatible with the target PCB layout and soldering profile.

Memory IC Selection Notes

Select this component when high bandwidth and zero wait state transitions are critical. Compare pipeline versus flow-through mode requirements based on system latency needs. Verify compatibility with existing NtRAM, NoBL, or ZBT SRAM footprints if migrating designs.

Memory IC Part Context

This part belongs to the GS8320Z18/36AGT series of 36Mb NBT SRAMs. It is designed for high-performance applications requiring full bus utilization. The device is implemented using high-performance CMOS technology and offers pin compatibility across various density options within the family.

Memory IC Replacement Considerations

The GS8320Z18AGT-375I and GS8320Z18AGT-250I are confirmed substitutes within the same series offering different speed grades. These parts maintain identical pinouts and functional configurations while varying in maximum clock frequency and access times.

Memory IC FAQ

How is the Pipeline or Flow Through mode selected?

The mode is selected via the FT input pin. Driving FT low configures the device for Flow Through mode, while driving it high selects Pipeline mode.

What is the function of the ZZ pin?

The ZZ pin is an asynchronous active-high input that controls the Sleep mode. When driven high, the device enters a low-current standby state after two clock cycles.