71V3577S85BQ

Overview

The Renesas Electronics Corporation 71V3577S85BQ is a static random-access memory (SRAM) device with a total storage capacity of 4 Mbit. The memory organization is specified as 128K x 36, providing a 36-bit data width per address location. It features an access time of 8.5 ns and supports a maximum clock frequency of 87 MHz. The component operates within a power supply voltage range of 3.135 V to 3.465 V. It utilizes a parallel interface for data transfer and is housed in a surface-mount package suitable for automated assembly processes.

Feature Summary

• Provides high-density synchronous SDR SRAM functionality with a 36-bit data bus width for wide-word applications.
• Supports fast asynchronous read access times of 8.5 ns for low-latency data retrieval operations.
• Operates on a single 3.3V power supply rail with defined voltage limits for standard logic compatibility.

Applications

• High-performance computing systems requiring wide-word data processing buffers
• Network infrastructure equipment utilizing parallel memory interfaces
• Industrial control systems needing fast access static memory

Procurement Notes

Verify the specific suffix BQ against official datasheets to confirm package type and lead finish, as variations exist within the family. Confirm RoHS compliance status, as some variants are marked non-compliant. Check current lifecycle status, as this part may be obsolete or subject to production changes. Ensure the supplier provides valid traceability documentation for legacy components.

Selection Notes

Select this component when a 36-bit data width is required for system architecture compatibility. Compare access speeds and power consumption against newer synchronous alternatives if available. Verify that the 128K x 36 organization fits the specific memory map requirements of the target application without excessive waste.

Part Context

This device belongs to the 71V3577 series of synchronous SRAMs from Renesas Electronics. The series is designed for applications demanding high-speed data buffering and caching. The 71V3577S85BQ specifically denotes the 8.5 ns speed grade and the BQ package variant within this product line.

Replacement Considerations

Check for direct pin-compatible replacements within the same 71V3577 family. Verify if newer generations offer improved power efficiency while maintaining the 36-bit interface. Consult manufacturer PCNs for any substrate or labeling changes that might affect mechanical fit.