71V3556S133PFGI8

Memory IC Overview

The 71V3556S133PFGI8 is a 4.5 Mbit synchronous static random access memory (SRAM) manufactured by Renesas Electronics Corporation. It features a memory organization of 128K x 36 bits and operates with a maximum clock frequency of 133 MHz. The device utilizes a 3.3 V I/O interface and supports a parallel bus width of 36 bits. Key electrical parameters include an access time of 4.2 ns, a maximum supply voltage of 3.465 V, and a minimum supply voltage of 3.135 V. The component is housed in a 100-lead lead-free package and is designed for surface mount installation.

Memory IC Feature Summary

• Supports ZBT architecture for high-speed synchronous data transfer
• Provides pipelined operation for efficient memory access
• Features 3.3 V I/O compatibility for standard logic interfaces

Memory IC Applications

• High-performance computing systems requiring fast data buffering
• Network infrastructure equipment needing low-latency memory
• Industrial control systems utilizing synchronous SRAM

Memory IC Procurement Notes

This component is officially classified as obsolete and is no longer manufactured by Renesas Electronics Corporation. Procurement is restricted to existing stock or third-party distributors. Verify authenticity and storage conditions carefully due to the end-of-life status. Moisture sensitivity level is 3, requiring proper handling to prevent damage during assembly.

Memory IC Selection Notes

Select this part only if legacy compatibility with the 71V3556 series is required. Ensure the design supports 133 MHz synchronous operation and 3.3 V logic levels. Consider the 128K x 36 organization for specific data width requirements. Evaluate alternative modern SRAMs if new designs do not mandate this specific obsolete form factor.

Memory IC Part Context

The 71V3556S133PFGI8 belongs to the Renesas 71V3556 family of synchronous SRAMs. This family is characterized by ZBT technology and pipelined architectures. The device is part of Renesas's broader portfolio of memory solutions, though this specific model has reached its end-of-life phase within the product lifecycle.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require redesigning the board for different pinouts or voltages. Consult manufacturer resources for current generation alternatives.