71V3577S85BQG

Overview

The 71V3577S85BQG is a 4.5 Mbit synchronous static random access memory (SRAM) manufactured by Renesas Electronics Corporation. It features a memory organization of 128K x 36 bits and supports a maximum clock frequency of 87 MHz with an access time of 8.5 ns. The device operates on a 3.3V core supply voltage, accepting input/output voltages between 3.135 V and 3.465 V. It utilizes a parallel interface and is housed in a 165-pin CABGA package measuring 13x15 mm. The component is classified as obsolete.

Feature Summary

• Supports synchronous single data rate (SDR) operation for high-speed data transfer
• Provides burst mode functionality to deliver multiple data cycles per address
• Includes self-timed write cycle with global write control capabilities

Applications

• High-performance embedded systems requiring fast data buffering
• Network infrastructure equipment utilizing wide data buses
• Industrial control applications needing rapid memory access

Procurement Notes

This component is officially designated as obsolete by the manufacturer. Verification of current availability through authorized distributors is essential, as stock may be limited or exhausted. Confirm RoHS compliance status and moisture sensitivity level prior to integration into production workflows.

Selection Notes

Select this part for designs requiring a 36-bit wide synchronous SRAM interface. Ensure the system architecture supports the specific 165-pin CABGA footprint and 3.3V logic levels. Verify that the 8.5 ns access time meets the timing constraints of the host processor.

Part Context

The 71V3577 series belongs to Renesas' family of 3.3V CMOS SRAMs designed for high-density applications. This specific model variant utilizes the CABGA package format, distinguishing it from BGA or TQFP options within the same functional family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.