71V3557S85PFG

Overview

The Renesas 71V3557S85PFG is a static random-access memory (SRAM) device organized as 128K x 36, providing a total storage capacity of 4.5 Mbit. It operates with a synchronous single data rate interface and supports 3.3V I/O levels. The component features an access time of 8.5 ns and a maximum clock frequency of 87 MHz. It utilizes a parallel interface type and is housed in a 100-pin LQFP package. The supply voltage range spans from 3.135 V to 3.465 V.

Feature Summary

• Supports synchronous burst mode operations for high-performance data transfer
• Includes self-timed write cycles with global write control capabilities
• Features power-down functionality controlled by dedicated input pins

Applications

• High-speed digital signal processing systems
• Network communication equipment requiring fast buffer memory
• Industrial control systems needing reliable volatile storage

Procurement Notes

Verify the exact suffix designation, as the provided model lacks the final character found in standard datasheets. Confirm moisture sensitivity level and RoHS compliance status through official manufacturer documentation before integration. Ensure the selected variant matches the required temperature range and package dimensions for your specific PCB layout constraints.

Selection Notes

Select this component when a 36-bit wide synchronous SRAM interface is required for system architecture. Consider the 8.5 ns access speed against system clock requirements. Verify that the 100-pin LQFP footprint aligns with available board space and assembly capabilities. Compare power consumption specifications against other synchronous memory options for efficiency.

Part Context

This part belongs to the Renesas 71V3557 series of synchronous SRAMs. These devices are designed for applications demanding high bandwidth and low latency. The series typically offers various access speeds and package options to suit different performance and form factor requirements in embedded and industrial electronics.

Replacement Considerations

Check for direct pin-compatible substitutes within the same family or cross-manufacturer equivalents with identical organization and voltage levels. Verify that any replacement maintains the synchronous interface protocol and burst mode compatibility.