Original Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 15 ns 48-CABGA (9x9)
Alternative Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-CABGA (9x9)
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-MiniBGA (8x10)
1. 71V416S10BEG8 Substitution Conclusion
This part is a viable direct drop-in replacement. It belongs to the same product family as the original component (71V416S15BEG8), is from the same manufacturer (Renesas), and uses an identical package (48-CABGA, 9x9) and pinout. The sole difference lies in the improved access time and write cycle time, which have been reduced from 15ns to 10ns. The new device offers faster read/write speeds and higher performance. It can operate stably under the same interface timing conditions as the original 15ns part, presenting no risk of timing mismatch. The substitution is feasible at both the electrical and physical levels.
2. AS7C34098A-10BINTR Substitution Conclusion
This part is a functional, but not pin-compatible, alternative and cannot be used as a direct replacement. Its core functional parameters (4Mb density, 256Kx16 organization, 10ns speed, 3.3V voltage) are fully aligned with, and in some aspects exceed, those of the original component. The critical difference is in the package dimensions and ball layout: it utilizes a 48-MiniBGA (8x10mm) package, whereas the original part is in a 48-CABGA (9x9mm) package. The ball footprint and overall physical dimensions are incompatible, preventing direct soldering onto the same PCB pads. A board design modification is mandatory. This alternative is suitable only for new designs and cannot be used for direct replacement in existing products.
Analysis ID: CCE6-22C1000
Based on part parameters and for reference only. Not to be used for procurement or production.
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