71V3558S166PFG

Memory IC Overview

The Renesas Electronics Corporation 71V3558S166PFG is a 4.5 Mbit synchronous ZBT SRAM IC organized as 256K x 18. It operates with a maximum clock frequency of 166 MHz and features a typical access time of 3.5 ns. The device utilizes a parallel interface and requires a supply voltage range of 3.135 V to 3.465 V. It is housed in a 100-pin TQFP (14x14 mm) surface-mount package and supports an operating temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Supports high-speed synchronous data transfer at frequencies up to 166 MHz
• Provides fast memory access with a typical latency of 3.5 nanoseconds
• Operates on a standard 3.3V power supply for compatibility

Memory IC Applications

• High-performance embedded systems requiring rapid data buffering
• Network infrastructure equipment utilizing parallel memory interfaces
• Industrial control units needing reliable volatile storage

Memory IC Procurement Notes

Verify the specific suffix 'PFG' against official Renesas documentation to confirm the exact pinout, lead finish, and moisture sensitivity level. Ensure the selected variant matches the required thermal grade and packaging dimensions for your PCB layout. Cross-reference the datasheet revision history for any recent manufacturing site changes or material updates before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 4.5 Mbit capacity with a 18-bit word width is required. The 166 MHz speed grade offers faster performance than lower-frequency variants within the same family. Consider the 100-TQFP package constraints regarding board space and thermal dissipation capabilities during the design phase.

Memory IC Part Context

This part belongs to the IDT 71V3558 series of 3.3V Synchronous Zero-Bus Turnaround SRAMs. The series provides flexible memory solutions for applications demanding high throughput and low latency. The 71V3558S166PFG represents a specific speed bin and package configuration within this broader product line.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers include 71V3558S133PFG and 71V3558S166PFGI.