GS84036CGT-250I

Memory IC Overview

The GS84036CGT-250I is a 128K x 36, 4Mbit synchronous burst SRAM manufactured by GSI Technology. It operates with a 3.3V core supply and supports both 2.5V and 3.3V I/O levels. The device features a user-configurable interface selectable between Flow Through and Pipelined modes via the FT pin. In Pipelined mode, it achieves a maximum clock frequency of 250 MHz with a cycle time of 4.0 ns and a clock-to-output latency of 2.5 ns. In Flow Through mode, the access time is 5.5 ns. It utilizes Single Cycle Deselect (SCD) operation and includes internal self-timed write cycles.

Memory IC Feature Summary

• User-selectable Flow Through or Pipelined read architecture controlled by the FT mode pin
• Single Cycle Deselect (SCD) operation for efficient bus turnaround
• Supports Byte Write (BW) and Global Write (GW) operations
• Internal input resistors on mode pins allow floating configuration

Memory IC Applications

• Level 2 Cache applications supporting high performance CPUs
• DSP main store memory systems
• Networking chipset support

Memory IC Procurement Notes

Verify that the specific part number suffix matches the required temperature range and package type. Confirm the ordering suffix indicates the Industrial Temperature Range variant as specified in the datasheet. Ensure the component is sourced from authorized distributors to guarantee authenticity and compliance with RoHS standards. Check for any recent revisions to the datasheet regarding electrical characteristics.

Memory IC Selection Notes

Select this component when a 36-bit data width is required for high-speed synchronous memory interfaces. The device is suitable for designs needing flexible read latency options through its configurable Flow Through or Pipelined modes. Consider the separate VDDQ power supply requirement for decoupling output noise from the internal circuitry during system design.

Memory IC Part Context

This component belongs to the GS840xxCGT series of 4Mb Sync Burst SRAMs. The series includes variants with different data widths (x18, x32, x36) and speed grades (-250, -200, -166, -150). The 'I' suffix denotes the Industrial Temperature Range version, while the 'GT' suffix indicates the 100-lead TQFP package format.

Memory IC Replacement Considerations

Compatible substitutes within the same family include GS84036CGT-200I, GS84036CGT-166I, and GS84036CGT-150I, which offer lower clock frequencies but maintain the same package and functional interface.