71V3557S85PF

Overview

The IDT71V3557S85PF is a Synchronous ZBT SRAM IC with a storage capacity of 4.5Mb, organized as 128K x 36 bits. It features a parallel interface and operates at a clock frequency of 87 MHz with an access time of 8.5 ns. The device supports a supply voltage range of 3.135V to 3.465V and functions within a temperature range of 0°C to 70°C. It is housed in a 100-TQFP package.

Feature Summary

• Supports synchronous burst read operations for high-speed data transfer
• Includes on-chip write-back logic for efficient data management
• Features low power consumption modes including deep power down

Applications

• High-performance networking equipment
• Telecommunications infrastructure systems
• Industrial control applications requiring fast memory access

Procurement Notes

Verify the specific suffix 'PF' against official Renesas or IDT documentation to confirm the exact package type and tape/reel specifications. Confirm RoHS compliance status and check for Product Change Notices (PCNs) regarding assembly sites or material changes before procurement.

Selection Notes

Select this component when a 36-bit wide synchronous SRAM interface is required. Ensure the system design accommodates the 100-pin TQFP footprint and that the operating voltage aligns with the specified 3.3V nominal range. Verify thermal requirements for the target application environment.

Part Context

This part belongs to the IDT 71V3557 family of Synchronous Zero Wait State (ZBT) SRAMs. These devices are designed to replace asynchronous SRAMs in high-speed designs without adding wait states, offering improved performance over standard static RAM solutions while maintaining compatibility with existing system architectures.

Replacement Considerations

Public confirmed substitute part numbers: 71V3557S85PFGI, 71V3557S85PFGI8.