71V3558S133BG

Overview

The IDT71V3558S133BG is a synchronous Single Data Rate Zero Bus Turnaround (ZBT) SRAM memory integrated circuit. It offers a total storage capacity of 4.5 Mbit, organized as 256K words by 18 bits. The device supports parallel data interfaces and operates with a maximum clock frequency of 133 MHz, achieving a typical access time of 4.2 ns. It functions within a supply voltage range of 3.135 V to 3.465 V and is housed in a 119-pin Plastic Ball Grid Array (PBGA) package measuring 14 mm by 22 mm.

Feature Summary

• Supports high-speed synchronous operation with Zero Bus Turnaround technology for efficient data transfer
• Provides wide 18-bit data word width suitable for complex system architectures
• Features common I/O structure for simplified interface design

Applications

• High-performance networking equipment requiring fast buffer memory
• Telecommunications systems utilizing synchronous data processing
• Industrial control systems needing reliable volatile storage

Procurement Notes

Verify component authenticity through authorized Renesas or IDT distributors due to potential counterfeit risks. Confirm RoHS compliance status as specific batches may vary; the provided data indicates some variants are compliant while others are not. Ensure the 119-PBGA package dimensions match your PCB footprint requirements precisely. Check for end-of-life status or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when a 133 MHz synchronous SRAM with 18-bit width is required. Compare against the 71V3558XS133PF if a TQFP package is preferred over PBGA. Consider the 71V3558S200BGG if higher clock speeds up to 200 MHz are necessary, noting the different pinout and performance characteristics. Ensure voltage levels align with the 3.3 V nominal system requirement.

Part Context

This part belongs to the IDT 71V3558 family of ZBT SRAMs, designed for applications demanding low latency and high throughput. The family includes various speed grades and package options, such as BGA and TQFP, to accommodate different board space and thermal constraints. These devices are commonly used in embedded systems where deterministic memory access times are critical for real-time operations.

Replacement Considerations

The IDT71V3558XS133PF serves as a functional alternative offering identical electrical specifications but utilizes a 100-TQFP package instead of the 119-PBGA. Verify mechanical compatibility and pin mapping differences before substitution. No other direct pin-compatible replacements are confirmed in the provided documentation.