Original Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-CABGA (9x9)
Alternative Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 12 ns 48-CABGA (9x9)
SRAM - Asynchronous Memory IC 4Mbit Parallel 15 ns 48-CABGA (9x9)
1. Substitution Conclusion for 71V416L12BEGI8
From the perspectives of core functionality, package, and electrical interface, the 71V416L12BEGI8 is a viable substitute for the original part. The primary difference lies in the access/write cycle time: the original part is specified at 10ns, whereas the L12 variant is rated for 12ns. This substitution results in slightly slower access speeds. If the original system design operates with tight timing margins based on the 10ns specification, direct replacement may lead to insufficient timing margin or a slight degradation in system performance. However, if the original design has adequate timing slack or does not demand peak performance, the substitution is functionally and physically feasible. Post-replacement validation of system timing and stability is required.
2. Substitution Conclusion for 71V416L15BEGI8
The 71V416L15BEGI8 is compatible with the original part in terms of basic specifications, providing the physical and electrical foundation for substitution. The key deviation, again, is the access/write cycle time: the L15 variant is specified at 15ns, which is significantly slower than the original 10ns. This directly translates to a substantial reduction in memory response speed. In high-speed applications, the original system will likely fail to meet timing requirements. This part is only suitable for systems with relaxed timing constraints or lower operating frequencies. In most scenarios designed around the original 10ns part, the risk associated with a direct substitution is high, and its use is not recommended.
Analysis ID: 215D-5867000
Based on part parameters and for reference only. Not to be used for procurement or production.
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