71V2556S100PFG8

Overview

The 71V2556S100PFG8 is a 4.5Mb (128K x 36) synchronous pipelined SRAM utilizing Zero Bus Turnaround (ZBT) technology. It operates with a 3.3V core supply and supports 2.5V I/O levels. The device features a parallel interface with a maximum clock frequency of 100 MHz and an access time of 5 ns. It is housed in a 100-pin TQFP package and is rated for an industrial operating temperature range of -40°C to 85°C.

Feature Summary

• Zero Bus Turnaround (ZBT) architecture eliminates dead bus cycles during read-to-write or write-to-read transitions.
• Synchronous pipelined design provides four cycles of data for a single address presentation.
• Supports optional Boundary Scan JTAG interface compliant with IEEE 1149.1.

Applications

• High-performance embedded systems requiring fast memory turnaround
• Industrial equipment with strict timing constraints
• Network infrastructure components

Procurement Notes

Verify component authenticity through authorized channels, as the part may be obsolete. Confirm RoHS compliance status, as variations exist within the family. Ensure voltage compatibility between the 3.3V core and 2.5V I/O supplies matches system requirements before procurement.

Selection Notes

Select this model for applications needing ZBT speed without pipeline latency penalties. Compare against other 71V2556 variants based on required clock speed and package type. Verify that the 100-pin TQFP footprint fits the target PCB layout and thermal management strategy.

Part Context

This component belongs to the Renesas 71V2556 series of synchronous SRAMs. The series is designed for high-speed data buffering and caching in complex digital systems. The specific suffix indicates the 100MHz speed grade and TQFP packaging configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for current equivalent offerings.