71V3556SA133BQG

Overview

The 71V3556SA133BQG is a synchronous single data rate zero bus turnaround static random access memory (SRAM) manufactured by Renesas Electronics. It features a storage capacity of 4.5 Mbit organized as 128K x 36 bits. The device supports a maximum clock frequency of 133 MHz with an access time of 4.2 ns. It operates on a 3.3V I/O supply voltage ranging from 3.135V to 3.465V and utilizes a parallel interface. The component is housed in a 165-pin CABGA package measuring 13x15 mm.

Feature Summary

• Synchronous operation with zero bus turnaround capability for efficient data transfer
• High-speed parallel interface supporting up to 133 MHz clock frequencies
• Wide 36-bit data organization suitable for high-bandwidth applications

Applications

• Network infrastructure equipment requiring fast buffer memory
• Telecommunications systems utilizing high-speed data processing
• Industrial control systems needing reliable volatile storage

Procurement Notes

Verify current availability status as this component may be subject to discontinuation or limited stock. Confirm the specific suffix BQG corresponds to the 165-CABGA package variant. Check RoHS compliance requirements against project specifications, as older variants may not meet current environmental standards. Validate lead times through authorized distributors due to potential supply chain constraints for legacy parts.

Selection Notes

Select this part when a 36-bit wide synchronous SRAM interface is required for system architecture compatibility. Ensure the design accommodates the 165-pin CABGA footprint and thermal characteristics. Compare performance metrics against newer generations if long-term supply assurance is critical. Verify power consumption limits align with the system's thermal management capabilities at 133 MHz operation.

Part Context

This component belongs to the 71V3556 family of synchronous SRAMs designed for high-performance computing and networking. It shares architectural similarities with other members like the 71V3556SA100 and 71V3556SA166 series, differing primarily in speed grade and packaging options. The SA suffix typically denotes specific timing or voltage characteristics within the product line.

Replacement Considerations

Direct replacements include the 71V3556SA100BQG for lower speed requirements or the 71V3556SA166BQG for higher performance needs. Cross-vendor alternatives such as ISSI IS61NLP12836A series may offer pin-compatible solutions but require electrical parameter verification.