Original Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-TFBGA (6x8)
Alternative Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 15 ns 48-CABGA (9x9)
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-CABGA (9x9)
1. 71V416L15BEG8 Substitution Conclusion
Direct substitution is not recommended. Key differences lie in access time/write cycle time (15 ns vs. 10 ns) and operating voltage range (3V–3.6V vs. 2.4V–3.6V). The slower speed may fail to meet the original design’s timing requirements in high‑speed read/write scenarios, potentially degrading system performance or causing instability. The narrower voltage range also limits compatibility with lower‑voltage systems; if the original system operates below 3V (e.g., 2.5V or 2.8V), this device will not function properly. Additionally, although both use 48‑pin packages, the specific ball‑out arrangements (CABGA vs. TFBGA) may introduce mechanical compatibility issues—PCB pad layout must be verified.
2. 71V416L10BE Substitution Conclusion
Substitution can be considered with caution if speed performance is matched (10 ns). The critical difference is the operating voltage range (3V–3.6V vs. 2.4V–3.6V). If the original system supply voltage is below 3V, this device cannot be used directly; if the system voltage remains above 3V, functional and timing compatibility is achievable. Again, package differences (48‑CABGA vs. 48‑TFBGA) must be noted—dimensions and ball positions may differ, so physical compatibility with the PCB layout and suitability for the assembly process must be confirmed.
Analysis ID: 0576-7EC2000
Based on part parameters and for reference only. Not to be used for procurement or production.
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