71V3556SA100BQ8

Overview

The 71V3556SA100BQ8 is a synchronous single data rate zero bus turnaround SRAM manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 4.5 Mbit, organized as 128K words by 36 bits. The device operates with a maximum clock frequency of 100 MHz and features a typical access time of 5 ns. It requires a supply voltage range between 3.135 V and 3.465 V. The component is housed in a 165-CABGA package measuring 13x15 mm and is rated for an operating temperature range of 0°C to 70°C.

Feature Summary

• Synchronous SDR architecture with zero bus turnaround capability to eliminate dead cycles during read-write transitions.
• Pipelined output structure supporting high-speed parallel data transfer at up to 100 MHz.
• Integrated burst counter for sequential memory access operations.

Applications

• High-performance embedded systems requiring fast parallel memory interfaces
• Network infrastructure equipment utilizing synchronous SRAM for buffering
• Industrial control units needing reliable volatile memory within commercial temperature ranges

Procurement Notes

Verify RoHS compliance status as the component is listed as non-compliant in available records. Confirm current availability as the product has been marked as obsolete or end-of-life by the manufacturer. Ensure the specific CABGA-165 package variant matches the target PCB footprint requirements before procurement.

Selection Notes

Select this component when a 36-bit wide parallel interface is required for synchronous memory applications. It is suitable for designs operating strictly within the 3.3V nominal supply voltage window. Consider the commercial temperature grade if operation outside the 0°C to 70°C range is anticipated.

Part Context

This part belongs to the 71V3556 family of 3.3V synchronous ZBT SRAMs. It shares architectural similarities with other variants in the series but differs in speed grade and packaging. The 'SA' suffix typically denotes specific speed binning and package configuration within the Renesas memory portfolio.

Replacement Considerations

Direct substitutes include other 71V3556 family members such as 71V3556SA100BQI or 71V3556SA150BQ8, provided pin compatibility and speed requirements are met. Verify that alternative packages maintain the same 165-pin CABGA form factor.