71V3558S133PFG

Overview

The IDT71V3558S133PFG is a synchronous ZBT SRAM with a memory organization of 256K x 18, providing a total capacity of 4.5 Mbit. It operates at a maximum clock frequency of 133 MHz with a typical access time of 4.2 ns. The device utilizes a 100-TQFP (14x14) surface-mount package and supports a supply voltage range of 3.135V to 3.465V. It features parallel interface architecture with common I/O types.

Feature Summary

• Supports high-performance system speeds through synchronous operation up to 133 MHz
• ZBT technology eliminates dead cycles between write and read operations
• Internally synchronized output buffer enable removes the need for external OE control
• Single R/W control pin simplifies interface logic requirements

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory applications in embedded systems
• Network switching and routing hardware
• Industrial control systems requiring fast random access

Procurement Notes

Verify component authenticity as this part may be subject to obsolescence notices. Confirm that the specific suffix PFG corresponds to the 100-TQFP package variant. Check current manufacturer status regarding end-of-life notifications or last-time-buy dates before finalizing procurement plans.

Selection Notes

Select this component when a 256K x 18 configuration is required with 133 MHz synchronous performance. Ensure the design accommodates the 100-pin TQFP footprint and 3.3V power domain. Consider alternative packages if board space constraints differ from the 14x14mm form factor.

Part Context

This device belongs to the IDT 71V3558 family of synchronous ZBT SRAMs. It shares architectural similarities with other variants in the series but is distinguished by its specific speed grade and package type. The family generally targets high-throughput applications requiring low-latency memory access.

Replacement Considerations

The 71V3558S166PFG serves as a similar functional substitute within the same product family, offering higher clock speed capabilities.