71V3559S85BQI

Overview

The 71V3559S85BQI is a synchronous single data rate (SDR) static random-access memory integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 4.5 megabits organized as 256K words by 18 bits. The device utilizes a parallel interface with an access time of 8.5 nanoseconds and operates at a maximum clock frequency of 87 MHz. It requires a supply voltage between 3.135V and 3.465V and functions within an industrial temperature range of -40°C to +85°C. The component is housed in a 165-pin CABGA package measuring 13x15 millimeters.

Feature Summary

• Supports high-speed synchronous operation with an 87 MHz clock frequency for efficient data throughput.
• Provides fast 8.5 ns access time suitable for demanding system performance requirements.
• Features a wide 18-bit data bus width to accommodate complex data processing tasks.

Applications

• High-performance computing systems requiring fast memory access
• Industrial control equipment operating in extreme temperatures
• Telecommunications infrastructure hardware

Procurement Notes

Verify the exact suffix BQI against official Renesas documentation to confirm the specific package variant and temperature grade. Confirm RoHS compliance status as indicated in manufacturer records, noting potential regulatory restrictions. Validate the current production lifecycle status, as this component may be subject to end-of-life notices or obsolescence warnings. Ensure compatibility with existing board designs regarding pinout and power specifications before procurement.

Selection Notes

Select this component when a 4.5Mb synchronous SRAM with an 18-bit data width is required. The 165-CABGA package is suitable for surface-mount applications needing robust thermal performance. Consider the -40°C to +85°C operating range for industrial environments. Verify that the 3.3V I/O levels match the system logic requirements. Compare against other members of the 71V3559 family if different packaging options are needed.

Part Context

This part belongs to the 71V3559 series of synchronous SDR ZBT SRAMs from Renesas. The series offers various density and speed grades optimized for high-bandwidth applications. The 71V3559S85BQI specifically targets industrial sectors due to its extended temperature rating. It complements other devices in the portfolio that offer different organization sizes or package types.

Replacement Considerations

Check for direct substitutes within the 71V3559 family such as the 71V3559S85BQ. Verify pin-to-pin compatibility and electrical characteristics before substitution. Consult official Renesas replacement guides for any updated components replacing obsolete variants.