71V2556SA100BGGI8

Memory IC Overview

The 71V2556SA100BGGI8 is a 4.5Mbit synchronous SRAM organized as 128K x 36, manufactured by Renesas Electronics Corporation. It operates at a clock frequency of 100 MHz with an access time of 5 ns. The device utilizes a parallel interface and is housed in a 119-PBGA (14x22) package. It supports a supply voltage range of 3.135V to 3.465V and functions within a temperature range of -40°C to 85°C.

Memory IC Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates dead cycles between read and write operations.
• Internally synchronized output buffer enable removes the need for external OE control.
• Single R/W control pin simplifies interface logic requirements.
• Positive clock-edge triggered registers support fully pipelined applications.

Memory IC Applications

• High-speed system memory buffering
• Network equipment data storage
• Industrial control systems

Memory IC Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as this specific variant may not meet current environmental standards. Validate package integrity upon receipt to ensure suitability for surface mount assembly processes.

Memory IC Selection Notes

Select this part for designs requiring ZBT performance with a 100 MHz clock speed. Ensure the PCB layout accommodates the 119-pin BGA footprint. Verify that the system power supply maintains the required 3.3V tolerance for stable operation across the industrial temperature range.

Memory IC Part Context

This component belongs to the 71V2556 family of synchronous SRAMs. It shares architectural similarities with other variants in the series but is distinguished by its specific 100 MHz speed grade and 119-pin PBGA packaging configuration designed for high-density board layouts.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available for this discontinued component. Designers should evaluate newer generation SRAMs or verify if alternative speed grades within the same package family offer functional compatibility.

Memory IC FAQ

Does the 71V2556SA100BGGI8 support boundary scan?

Yes, the device offers an optional Boundary Scan JTAG interface compliant with IEEE 1149.1.

How many chip enables does the device have?

The device features three chip enables to facilitate simple depth expansion.