Original Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-TFBGA (6x8)
Alternative Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 12 ns 48-CABGA (9x9)
SRAM - Asynchronous Memory IC 4Mbit Parallel 12 ns 48-CABGA (9x9)
1. 71V416L12BE8 Substitution Conclusion
A functional replacement is possible, but with risks of performance degradation and a narrower operating voltage range. The key differences are:
1) Speed: The original part has an access/cycle time of 10ns, whereas this substitute is rated for 12ns. This reduces the maximum memory bandwidth and may fail to meet the original design's stringent timing requirements.
2) Operating Voltage: The original component supports a wide range of 2.4V to 3.6V. This substitute is only specified for 3.0V to 3.6V. If the original system operates below 3.0V (e.g., at 2.5V or 2.8V), this part will not function correctly.
Direct substitution is viable only if the system voltage is above 3.0V and the 12ns speed is acceptable for the application. The PCB silkscreen should be updated accordingly after replacement.
2. 71V416L12BEG Substitution Conclusion
The substitution assessment for this part is identical to that for the 71V416L12BE8, as their core parameters (speed, voltage, package, density, organization) are exactly the same. The suffix "G" typically denotes "Lead-Free (Green)" or a different tape-and-reel packaging option. It represents an alternate environmental or packaging variant of the same die, with no electrical performance differences.
Therefore, its substitution feasibility equally depends on the original system's tolerance for the 12ns speed and its compatibility with the 3.0V to 3.6V operating voltage range.
Analysis ID: DB3E-DB18000
Based on part parameters and for reference only. Not to be used for procurement or production.
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