GS8640Z36GT-300I

Memory IC Overview

The GS8640Z36GT-300I is a 72 Mbit Synchronous NoBL SRAM manufactured by GSI Technology. It features a 2M x 36 organization with a maximum clock frequency of 300 MHz and an access time of 5.5 ns. The device operates on a 2.5 V or 3.3 V supply, with voltage ranges from 2.3 V to 3.6 V. It utilizes a parallel interface and is housed in a 100-lead TQFP package suitable for surface mount installation. The component supports industrial temperature operation between -40°C and +85°C.

Memory IC Feature Summary

• Supports synchronous burst operations with No Bus Turn Around (NBT) functionality for zero wait read-write-read cycles
• Features user-configurable pipeline and flow-through modes for flexible system integration
• Includes byte write capability using 9-bit bytes for efficient data handling
• Provides automatic power-down via the ZZ pin to reduce active current consumption

Memory IC Applications

• High-speed networking equipment requiring low-latency memory buffering
• Industrial control systems operating within extended temperature ranges
• Telecommunications infrastructure utilizing synchronous burst architectures
• Embedded processing units needing fast pipelined or flow-through memory access

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature range (-40°C to +85°C) rather than commercial grade. Confirm the '300' designation matches the required 300 MHz clock speed and 5.5 ns access time. Ensure the TQFP-100 package type aligns with the target PCB footprint. Cross-reference RoHS compliance status if environmental regulations apply to the final assembly process.

Memory IC Selection Notes

Select this component when a 72 Mbit capacity with 36-bit width is required for high-frequency applications. The choice depends on the need for NBT technology to maximize bus utilization without turnaround delays. Consider the 2.5V/3.3V dual-voltage compatibility for mixed-signal environments. The TQFP-100 package offers a balance of pin count and thermal performance for dense board layouts.

Memory IC Part Context

This part belongs to the GS8640 series of Synchronous NoBL SRAMs from GSI Technology. The series is designed to replace traditional asynchronous and pipelined memories in high-performance systems. It shares pin compatibility with other devices in the family, allowing for scalable memory depth expansion across different project requirements.

Memory IC Replacement Considerations

Check for direct pin-compatible substitutes within the GS8640 family that offer different speeds or capacities. Verify if older generations like NtRAM or NoBL variants are functionally equivalent for the specific application timing constraints.