71V2556S166PFG8

Memory IC Overview

The 71V2556S166PFG8 is a 3.3V CMOS synchronous ZBT SRAM organized as 128K x 36, providing 4.5 Mbit of storage density. It features a 36-bit data bus width and operates with a maximum clock frequency of 166 MHz. The device utilizes a pipelined architecture to eliminate dead bus cycles during read/write transitions. It supports a core voltage of 3.3V and I/O voltage of 2.5V. The component is housed in a 100-pin TQFP package with dimensions of 20.0 x 14.0 x 1.4 mm and a 0.65 mm pitch.

Memory IC Feature Summary

• Eliminates dead bus cycles when turning the bus around between reads and writes or writes and reads
• Utilizes synchronous pipelined architecture for high-speed data transfer
• Supports 3.3V core voltage with 2.5V I/O levels

Memory IC Applications

• High-performance computing systems requiring fast memory access
• Network infrastructure equipment
• Industrial control systems

Memory IC Procurement Notes

Verify current availability status as this component may be subject to discontinuation notices. Confirm moisture sensitivity level (MSL 3) and reflow soldering profile requirements before assembly. Ensure compatibility with 3.3V core and 2.5V I/O power supplies. Check for any recent product change notifications regarding packaging or substrate modifications.

Memory IC Selection Notes

Select this part for applications requiring 128K x 36 organization and 166 MHz synchronous operation. Consider the 100-pin TQFP package for surface-mount assembly. Verify that the system design supports separate 3.3V and 2.5V power domains. Evaluate thermal performance within the specified operating temperature range.

Memory IC Part Context

This component belongs to the 71V2556 series of 3.3V Synchronous ZBT SRAMs manufactured by Renesas Electronics Corporation. The series includes variants with different speeds and packages, such as the 71V2556SA166PFG8 and 71V2556S133BGG. These devices are designed for high-throughput memory applications.

Memory IC Replacement Considerations

Check for direct pin-to-pin replacements within the 71V2556 family, such as slower speed grades like 71V2556S133PFGI if timing constraints allow. Verify electrical compatibility for 3.3V core and 2.5V I/O voltages.