71V3558XS133PFG

Memory IC Overview

The IDT71V3558XS133PFG is a 4.5Mb synchronous ZBT SRAM organized as 256K x 18, manufactured by Renesas Electronics Corporation under the IDT brand. It operates at a maximum clock frequency of 133 MHz with a 4.2 ns access time. The device features 3.3V I/O and is housed in a 100-TQFP (14x14) surface-mount package. It supports parallel interface communication and functions within a supply voltage range of 3.135V to 3.465V.

Memory IC Feature Summary

• Synchronous Zero-Bus Turnaround (ZBT) architecture for high-speed data transfer
• Self-timed write cycle capability with global write control
• Burst counter pipelined outputs supporting interleaved or linear burst modes

Memory IC Applications

• High-performance cache memory systems
• Network infrastructure equipment requiring low latency
• Industrial control systems utilizing synchronous static RAM

Memory IC Procurement Notes

Verify the manufacturer designation as Renesas Electronics Corporation, which acquired IDT. Confirm the specific suffix 'XS' corresponds to the 133MHz speed grade and 4.2ns access time. Ensure the package type matches the 100-TQFP specification. Check RoHS compliance status against current regulatory requirements. Validate that the component is not obsolete before finalizing procurement plans.

Memory IC Selection Notes

Select this component when a 256K x 18 organization is required with synchronous operation up to 133 MHz. It is suitable for designs needing 3.3V I/O levels and self-timed write cycles. Consider the 100-TQFP package constraints for PCB layout. Compare against other ZBT SRAMs if different memory densities or pinouts are needed.

Memory IC Part Context

This part belongs to the IDT71V3558 family of 3.3V Synchronous ZBT SRAMs. The family includes variants with different speeds and packages, such as the 100MHz and 166MHz versions. These devices are designed for applications demanding high bandwidth and low power consumption in embedded systems.

Memory IC Replacement Considerations

IDT71V3558XS133PF8 is an alternative packaging option for the same electrical specifications.