71V3558SA133BQG

Memory IC Overview

The 71V3558SA133BQG is a synchronous ZBT SRAM IC manufactured by Renesas Electronics Corporation. It features a storage capacity of 4.5 Mbit organized as 256K x 18 bits. The device supports a maximum clock frequency of 133 MHz with an access time of 4.2 ns. It operates within a supply voltage range of 3.135V to 3.465V and is housed in a 165-CABGA (13x15) package.

Memory IC Feature Summary

• Synchronous Zero-Bus-Turnaround (ZBT) technology for high-speed parallel data transfer
• Pipelined output architecture supporting burst counter operations
• 3.3V I/O compatibility integrated with core logic

Memory IC Applications

• High-performance embedded systems requiring fast memory access
• Industrial equipment control units
• Network infrastructure hardware

Memory IC Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS3 compliance and moisture sensitivity level (MSL 3) requirements during handling. Review official Product Change Notices for assembly site updates or label changes prior to integration into final designs.

Memory IC Selection Notes

Select this component when specific 133 MHz synchronous performance and 18-bit data width are required. Ensure the design accommodates the 165-CABGA package dimensions and thermal characteristics. Validate that the system power supply strictly maintains the 3.135V to 3.465V operating range for reliable functionality.

Memory IC Part Context

This part belongs to the 71V3558 family of synchronous SRAMs, which includes variants with different speeds and packages such as the 71V3558SA100BQ8 and 71V3558SA166BQG. These devices share common architectural features like pipelined outputs and ZBT interfaces, differing primarily in clock speed and physical packaging configurations.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The product status is listed as discontinued. Designers should evaluate alternative memory solutions or existing stock carefully.