Original Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-TFBGA (6x8)
Alternative Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-CABGA (9x9)
SRAM - Asynchronous Memory IC 4Mbit Parallel 12 ns 48-CABGA (9x9)
1. Substitution Conclusion for 71V416L10BE
In terms of core timing performance, the 71V416L10BE is identical to the original part, featuring the same 10ns access/write cycle time, memory density, organization, and interface. This makes it a viable drop-in replacement from a speed perspective. The primary difference lies in the operating voltage range: the original part supports 2.4V to 3.6V, whereas the 71V416L10BE is specified for 3.0V to 3.6V only. If the original system operates below 3.0V, this substitute will not function reliably. For systems consistently operating above 3.0V, substitution is feasible, but it is critical to verify full pinout compatibility. Although both use a 48-TFBGA package, the ball grid array (BGA) layout may differ.
2. Substitution Conclusion for 71V416L12BEGI
The 71V416L12BEGI matches the original part in memory density, organization, and interface. There are two key technical deviations: first, its access/write cycle time is 12ns, which is slower than the original's 10ns; second, its operating voltage range is narrower, at 3.0V to 3.6V, compared to the original's 2.4V to 3.6V. For a direct substitution, two conditions must be met: the system's timing margin must accommodate the 2ns performance degradation, and the system voltage must never fall below 3.0V. Only if both conditions are satisfied, and the pinout is confirmed to be compatible, can this slower-speed alternative be considered.
Analysis ID: 5FE5-2FF3000
Based on part parameters and for reference only. Not to be used for procurement or production.
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