71V3578YS133PFG

Overview

The Renesas Electronics Corporation 71V3578YS133PFG is a synchronous single data rate (SDR) static random-access memory (SRAM) integrated circuit. It features a total storage capacity of 4.5 Mbit, organized as 256K words by 18 bits. The device operates with a maximum clock frequency of 133 MHz and provides an access time of 4.2 ns. It requires a supply voltage range of 3.135 V to 3.465 V. The component is housed in a 100-TQFP package measuring 14x20 mm and supports surface mount installation. It is designed for commercial operating temperatures ranging from 0°C to 70°C.

Feature Summary

• Synchronous SDR architecture enabling high-speed parallel data transfer
• Flow-through interface design for continuous read/write operations
• Integrated parity checking for enhanced data integrity

Applications

• High-performance embedded systems requiring fast local memory
• Network infrastructure equipment and routers
• Industrial control systems demanding reliable volatile storage

Procurement Notes

Verify the specific suffix 'Y' against official documentation, as it may indicate RoHS compliance status or manufacturing origin variations. Confirm that the 133 MHz speed grade matches system timing requirements. Check for end-of-life notices, as this component family has faced discontinuation announcements. Ensure compatibility with 3.3V logic levels before integration.

Selection Notes

Select this part when a 4.5 Mbit capacity with 18-bit width is required for synchronous applications. Compare against the 71V3578S133PFGI if industrial temperature ranges are needed. Consider the 71T75602S133PFG for wider 36-bit interfaces. Verify package dimensions fit the PCB footprint constraints of the 100-TQFP form factor.

Part Context

This component belongs to the IDT 71V3578 family of synchronous SRAMs manufactured by Renesas Electronics. It is part of a broader portfolio of high-speed memory solutions designed for networking and telecommunications. The family typically includes variants with different speeds and temperature ratings, sharing common architectural features like flow-through operation.

Replacement Considerations

Publicly confirmed substitute part numbers include IS61LPS25618A-200TQLI from ISSI. Verify pinout and electrical parameter compatibility before substitution.