71V2556S150PFG8

Overview

The 71V2556S150PFG8 is a 3.3V CMOS synchronous SRAM organized as 128K x 36, providing a total capacity of 4.5 Mbit. It features a 36-bit bus width and operates with a clock frequency up to 150 MHz. The device utilizes pipelined architecture for high-speed data transfer and includes 2.5V I/O levels for compatibility. Access time is specified at 3.8 ns. It supports full standby mode with low power consumption and is housed in a 100-pin TQFP package.

Feature Summary

• Eliminates dead bus cycles during read-to-write or write-to-read transitions using synchronous pipelined architecture
• Supports independent port access with separate control, address, and I/O pins for efficient data handling
• Features fully static asynchronous circuitry requiring no clocks or refreshes for basic operation

Applications

• High-performance processor secondary cache systems
• Network equipment memory buffering
• Industrial control system data storage

Procurement Notes

Verify the specific suffix PFG8 against official Renesas documentation to confirm tape-and-reel packaging and lead-free status. Confirm RoHS compliance and moisture sensitivity level (MSL 3) requirements for your assembly process. Check for end-of-life notices or alternative part numbers if long-term supply stability is required.

Selection Notes

Select this component when a 36-bit wide synchronous interface is necessary for high-bandwidth applications. Ensure the design accommodates the 3.3V core voltage and 2.5V I/O levels. Verify that the 100-TQFP package dimensions fit the PCB layout constraints and thermal management requirements.

Part Context

This part belongs to the 71V2556 family of synchronous SRAMs from Renesas Electronics. It is designed for applications requiring fast, reliable data storage with minimal latency. The family offers various speed grades and packaging options to suit different performance and form factor needs.

Replacement Considerations

Check for direct pin-compatible alternatives within the 71V2556 series, such as different speed grades or packaging variants. Verify electrical parameter compatibility before substitution.