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. Substitution Conclusion for 71V416L15BEG8
This part is not a fully viable drop-in replacement and requires careful evaluation. While its core specifications—4Mbit density, 256Kx16 organization, parallel interface, and 48-ball BGA package—are a perfect match for the original component, two critical differences exist. First, its access/write time of 15ns is slower than the original's 10ns. If the original system's timing budget was designed tightly around the 10ns performance, direct substitution could lead to system instability or failure to meet high-speed access requirements. Second, its operating voltage range of 3.0V to 3.6V is narrower than the original's 2.4V to 3.6V. Should the host system operate below 3.0V (e.g., at 2.5V or 2.8V), this device will not function. Substitution can only be considered if the system voltage is strictly above 3.0V and the required access speed is not faster than 15ns.
2. Substitution Conclusion for 71V416L10BE
This part is largely suitable as a direct replacement, but package compatibility must be verified. Its key performance parameters—4Mbit density, 256Kx16 organization, 10ns access time, and parallel interface—are identical to the original, ensuring electrical and timing compatibility. The sole functional discrepancy is its operating voltage range of 3.0V to 3.6V, which is narrower than the original's 2.4V to 3.6V. Prior to replacement, it is essential to confirm the system's actual operating voltage is not below 3.0V; otherwise, the device will be inoperative. Furthermore, its package is specified as a 48-CABGA, whereas the original is a 48-TFBGA. Although both share the same pin count and are BGA types, subtle differences in package outline, ball pad layout, or standoff height may exist. It is mandatory to cross-reference the mechanical drawings in both manufacturers' datasheets to confirm direct solderability onto the PCB lands designed for the original component.
Analysis ID: 033C-A599000
Based on part parameters and for reference only. Not to be used for procurement or production.
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