GS8640Z18GT-300I

Memory IC Overview

The GS8640Z18GT-300I is a 72 Mbit synchronous static random-access memory (SRAM) manufactured by GSI Technology. It features a memory organization of 4 Megawords by 18 bits, utilizing a parallel interface. The component supports a maximum clock frequency of 300 MHz with an access time of 5.5 ns. It operates within a supply voltage range of 2.3 V to 3.6 V and is housed in a 100-lead TQFP package suitable for surface mount technology.

Memory IC Feature Summary

• Supports NBT (No Bus Turn Around) functionality for zero wait read-write-read bus utilization
• User-configurable Pipeline and Flow Through architecture modes
• Compatible with Linear or Interleave Burst modes via LBO pin configuration
• Includes ZZ Pin for automatic power-down management

Memory IC Applications

• High-speed data buffering in telecommunications systems
• Cache memory implementation in network processing equipment
• Data storage in industrial control applications requiring wide data buses
• Embedded memory solutions in consumer electronics with high throughput demands

Memory IC Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature rating compliance during sourcing. Confirm package integrity for the 100-lead TQFP form factor. Ensure compatibility with 2.5V or 3.3V system logic levels as specified in official documentation. Check for RoHS compliance status prior to final procurement decisions.

Memory IC Selection Notes

Select this component when a 72 Mbit capacity with a 18-bit data width is required. The 300 MHz speed grade suits applications needing low latency and high bandwidth. Consider the TQFP-100 package for PCB layout constraints. Evaluate power consumption requirements against the specified maximum current ratings for active operation.

Memory IC Part Context

This device belongs to the GS8640Z series of NBT SRAMs from GSI Technology. The series offers pin-compatible options across various densities and speeds. It integrates advanced pipeline architectures to maximize bus efficiency. The part is designed for demanding digital signal processing and networking environments.

Memory IC Replacement Considerations

Check for direct pin-compatible substitutes within the GS8640Z family that match the 300 MHz speed grade. Verify if alternative packages like BGA variants offer equivalent electrical characteristics. Ensure any replacement maintains the same 4M x 18 organization and voltage specifications.