71V3577S85PFG8

Overview

The Renesas 71V3577S85PFG8 is a 4.5 Mbit (128K x 36) synchronous static random-access memory (SRAM) IC manufactured by Renesas Electronics Corporation. It operates with a maximum clock frequency of 87 MHz and features an access time of 8.5 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 package measuring 14x14 mm. The component supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Supports synchronous burst mode operations for high-speed data transfer
• Integrates global write control and byte write enable capabilities
• Features power-down functionality controlled by the ZZ input pin

Applications

• High-performance embedded systems requiring fast memory access
• Network infrastructure equipment utilizing synchronous interfaces
• Industrial control applications operating within extended temperature ranges

Procurement Notes

Verify the specific suffix PFG8 against official Renesas documentation to confirm the exact package dimensions and moisture sensitivity level. Confirm RoHS compliance status as historical records indicate variations across production batches. Ensure the intended application environment matches the specified -40°C to +85°C operating temperature range before integration.

Selection Notes

Select this component when a 128K x 36 organization is required with synchronous timing characteristics. The 8.5 ns access time suits designs needing moderate speed without higher latency penalties. Verify that the system design accommodates the 3.3V I/O levels and the specific 100-pin TQFP footprint constraints during PCB layout planning.

Part Context

This part belongs to the 71V3577 family of 3.3V CMOS SRAMs, which are organized as 128K x 36. The family offers various access times and package options, including BGA and fpBGA configurations. The S85 designation specifically denotes the 8.5 ns speed grade within this product line, distinguishing it from faster or slower variants.

Replacement Considerations

Publicly confirmed substitute part numbers include IDT71V3577S85PFGI8 and 71V3577S85PFGI8. These alternatives share identical electrical specifications and pinouts. Verify package compatibility and lead availability before substitution.