71V3559S85PFG8

Memory IC Overview

The Renesas Electronics Corporation 71V3559S85PFG8 is a synchronous single data rate zero bus turnaround (ZBT) static random-access memory integrated circuit. It provides a total storage capacity of 4.5 megabits, organized as 256 kilowords by 18 bits. The device features an 8.5 nanosecond access time and operates on a parallel interface with a supply voltage range of 3.135 volts to 3.465 volts. It is housed in a 100-pin thin quad flat package measuring 14 by 14 millimeters.

Memory IC Feature Summary

• Supports synchronous single data rate operation with zero bus turnaround capability for efficient bidirectional data transfer without dead cycles.
• Provides high-speed data access through an 8.5 nanosecond access time specification.
• Features a 256K x 18 bit organization suitable for wide data path applications.

Memory IC Applications

• High-performance computing systems requiring fast buffer memory
• Network infrastructure equipment needing low-latency data handling
• Industrial control systems utilizing synchronous SRAM interfaces

Memory IC 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 some variants in this family may not meet current environmental standards. Check for end-of-life notices or product change notifications that might affect long-term availability and sourcing strategies.

Memory IC Selection Notes

Select this component when a synchronous ZBT SRAM with an 18-bit data width is required. Ensure the design supports the 3.3-volt nominal supply voltage and the 100-pin TQFP footprint. Compare performance requirements against other speeds in the 71V3559 series if timing constraints differ from the 8.5 ns specification.

Memory IC Part Context

This part belongs to the IDT 71V3559 family of synchronous SRAMs, now manufactured under the Renesas Electronics brand. The family is designed for applications demanding high throughput and deterministic latency. The 71V3559S85 variant specifically targets systems requiring faster cycle times compared to slower speed grades within the same organizational structure.

Memory IC Replacement Considerations

Consult official substitution guides for pin-compatible alternatives within the 71V3559 series. Verify electrical parameters such as access time and power consumption before replacing with different speed grades or package options.