GS8640Z36GT-250IV

Memory IC Overview

The GS8640Z36GT-250IV is a 72 Mbit Synchronous NBT SRAM manufactured by GSI Technology. It features a memory organization of 2 M x 36 and supports a maximum clock frequency of 250 MHz with a 6.5 ns access time. The device operates within a voltage range of 2.3 V to 3.6 V and utilizes a parallel interface. It is housed in a TQFP-100 surface-mount package and is rated for an industrial operating temperature range from -40°C to +85°C.

Memory IC Feature Summary

• Supports user-configurable Pipeline and Flow Through modes for flexible data handling
• NBT functionality enables zero wait Read-Write-Read bus utilization
• Includes IEEE 1149.1 JTAG-compatible Boundary Scan for testing

Memory IC Applications

• High-speed networking equipment requiring low-latency buffering
• Industrial control systems demanding wide temperature stability
• Telecommunications infrastructure utilizing synchronous memory architectures

Memory IC Procurement Notes

Verify the specific suffix IV against official datasheets to confirm the industrial temperature grade (-40°C to +85°C) and TQFP-100 packaging. Ensure compatibility with 2.5V or 3.3V supply requirements as defined in the electrical specifications. Confirm moisture sensitivity levels and handling precautions prior to assembly.

Memory IC Selection Notes

Select this component when a 72 Mbit capacity with a 36-bit width is required for high-frequency applications up to 250 MHz. The choice depends on the necessity for NBT architecture to maximize bus efficiency and the requirement for an industrial temperature rating. Verify that the TQFP-100 package fits the board layout constraints compared to BGA alternatives.

Memory IC Part Context

This part belongs to the GS8640Z36GT series of Synchronous NBT SRAMs. It shares architectural similarities with other devices in the family, such as the GS8640Z36GT-250I, but differs in its specific temperature and package designation. The series is designed for applications needing high throughput and pin-compatibility with other pipeline and flow-through SRAMs.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.