71V3558XS133PFI

Memory IC Overview

The IDT71V3558XS133PFI is a 4.5 Mbit synchronous ZBT SRAM organized as 256K x 18, operating at a maximum clock frequency of 133 MHz with a 4.2 ns access time. It utilizes a 100-TQFP (14x14) surface-mount package and requires a 3.135V to 3.465V supply voltage. The device supports parallel interface communication and functions within an ambient temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Synchronous Single Data Rate Zero Wait State (ZBT) architecture for high-speed data transfer
• Integrated burst counter for sequential memory access operations
• Pipelined output structure to maintain throughput efficiency

Memory IC Applications

• High-performance networking equipment requiring low-latency buffering
• Industrial control systems utilizing synchronous memory interfaces
• Telecommunications infrastructure components

Memory IC Procurement Notes

Verify component authenticity through authorized Renesas Electronics Corporation channels due to discontinued status. Confirm RoHS compliance requirements against the specific manufacturing date code, as this variant may not meet current environmental standards. Validate package integrity upon receipt to ensure suitability for automated surface-mount assembly processes.

Memory IC Selection Notes

Select this component when a 256K x 18 organization is required with 133 MHz synchronous performance. Ensure the design accommodates the 100-pin TQFP footprint and 3.3V logic levels. Consider alternative packages if higher thermal dissipation or different pin counts are necessary for the target application layout.

Memory IC Part Context

This part belongs to the IDT 71V3558 family of 3.3V Synchronous ZBT SRAMs. It shares architectural similarities with variants offering different speeds or organizations, such as the 128K x 36 configuration. The XS suffix indicates a specific speed bin and package combination within the broader product line managed by Integrated Device Technology.

Memory IC Replacement Considerations

IDT71V3558XS133PF8 is listed as an alternative packaging option.