71V3556SA166BGI

Overview

The 71V3556SA166BGI is a synchronous single data rate zero bus turnaround SRAM manufactured by Renesas Electronics. It provides a storage capacity of 4.5 Mbit organized as 128K words by 36 bits. The device supports parallel interface operations with a maximum clock frequency of 166 MHz and an access time of 3.5 ns. It operates within a supply voltage range of 3.135 V to 3.465 V and is housed in a 119-pin PBGA package measuring 14x22 mm. The component is rated for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Synchronous SDR architecture with zero bus turnaround capability for efficient data transfer
• High-speed parallel interface supporting up to 166 MHz clock frequencies
• Industrial temperature rating suitable for demanding operational environments

Applications

• High-performance networking equipment requiring fast memory access
• Telecommunications infrastructure systems
• Industrial control applications needing reliable volatile storage

Procurement Notes

Verify RoHS compliance status carefully, as documentation indicates non-compliance for this specific suffix variant. Confirm end-of-life notifications and product discontinuance dates prior to procurement planning. Ensure compatibility with existing PCB footprints for the 119-PBGA package. Check for moisture sensitivity level requirements during handling and storage procedures.

Selection Notes

Select this component when synchronous SRAM performance at 166 MHz is required alongside a 36-bit data width. Compare against other variants in the 71V3556 series based on package type and temperature range. Ensure the design accommodates the specific voltage tolerances and power consumption characteristics defined in the datasheet.

Part Context

This part belongs to the 71V3556 family of high-speed synchronous SRAMs. It shares core architectural features with other members like the 71V3556SA166BGG but differs in packaging and environmental ratings. The family is designed for applications demanding low latency and high bandwidth memory solutions.

Replacement Considerations

Direct substitutes include 71V3556SA166BGG for similar electrical specifications with different packaging or temperature grades. Verify pinout compatibility and electrical parameters before replacing. Consult official replacement lists for discontinued components.