71V2556SA100BGG8

Overview

The 71V2556SA100BGG8 is a 4.5 Mbit synchronous SDR (ZBT) SRAM memory IC manufactured by Renesas Electronics Corporation. It features a parallel interface with a maximum clock frequency of 100 MHz and an access time of 5 ns. The device is organized as 128K x 36 bits and operates within a supply voltage range of 3.135V to 3.465V. It is housed in a 119-PBGA (14x22) surface-mount package and supports a working temperature range of -40°C to 85°C.

Feature Summary

• Zero bus turnaround (ZBT) technology eliminates dead bus cycles during read-to-write transitions.
• Synchronous single data rate architecture ensures high-speed data transfer aligned with the system clock.
• Parallel interface design facilitates direct connection to high-performance processors.

Applications

• High-speed cache memory systems
• Network routing equipment buffers
• Telecommunications base station processing

Procurement Notes

Verify component authenticity through authorized channels, as this part is scheduled for obsolescence. Confirm RoHS3 compliance status and check for available end-of-life alternatives from Renesas. Ensure compatibility with existing PCB footprints and power supply specifications before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring fast synchronous memory with zero wait-state turnaround capabilities. Consider the 128K x 36 organization for wide-data-path requirements. Evaluate the 119-PBGA package constraints for thermal management and board space. Compare against newer generations if long-term supply stability is critical.

Part Context

This device belongs to the 71V2556 series of 3.3V CMOS Synchronous SRAMs. It shares architectural similarities with other members like the 71V2556SA100BGI but differs in packaging and specific electrical characteristics. The series is designed for embedded applications demanding high bandwidth and low latency.

Replacement Considerations

Public confirmed substitute part numbers are not explicitly listed in the provided documentation. Consult Renesas official resources for recommended upgrades or pin-compatible alternatives due to the product's end-of-life status.

FAQ

What is the primary advantage of ZBT technology in this SRAM?

ZBT technology eliminates dead bus cycles when turning the bus around between reads and writes, improving overall system throughput.

Is the 71V2556SA100BGG8 RoHS compliant?

Yes, the component is listed as ROHS3 Compliant.