71V65603S133BGGI

Overview

The 71V65603S133BGGI is a 9 Mbit Synchronous Zero Bus Turnaround (ZBT) Static Random-Access Memory (SRAM) manufactured by IDT. It features a memory organization of 256K words by 36 bits, supporting high-speed parallel data transfer with a maximum clock frequency of 133 MHz and an access time of 4.2 ns. The device operates on a single 3.3 V power supply within a voltage range of 3.135 V to 3.465 V. It utilizes a pipelined architecture with positive clock-edge triggered registers for address, data, and control signals. The component is housed in a 119-pin Plastic Ball Grid Array (PBGA) package measuring 14x22 mm, designed for surface-mount installation.

Feature Summary

• Zero Bus Turnaround technology eliminates dead cycles between write and read operations to maximize throughput.
• Pipelined architecture with positive clock-edge triggered registers ensures fully synchronous operation.
• Single R/W control pin simplifies interface logic by combining read and write enable functions.
• Internally synchronized output buffer enable removes the need for external OE signal management.

Applications

• High-performance networking equipment requiring low-latency data buffering
• Telecommunications systems utilizing synchronous memory interfaces
• Industrial automation controllers needing fast random-access storage

Procurement Notes

Verify the specific suffix BGGI against official Renesas or IDT documentation to confirm the 119-PBGA package and 133 MHz speed grade. Confirm RoHS compliance status as manufacturing sources may vary. Check for End-of-Life notices or Product Change Notifications regarding substrate changes or label updates before finalizing procurement plans.

Selection Notes

Select this component when system requirements demand a 36-bit wide synchronous interface with ZBT performance characteristics. Ensure the design supports a 3.3 V I/O standard and can accommodate the thermal and physical constraints of a 119-ball BGA footprint. Verify that the target application benefits from the elimination of bus turnaround delays compared to standard synchronous SRAMs.

Part Context

This part belongs to the IDT 71V65603 series of 3.3V Synchronous ZBT SRAMs. The series offers various speed grades and package options, including TQFP and TBGA configurations. The 71V65603S133BGGI specifically represents the 133 MHz performance tier in the PBGA form factor, providing a balance of density and speed for embedded memory applications.

Replacement Considerations

Publicly confirmed substitute part numbers include 71V65603S150BQGI and IS61NLP25636A-200B3LI. Verify electrical compatibility and pinout alignment before substitution.