Original Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 15 ns 48-CABGA (9x9)
Alternative Part
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-MiniBGA (8x10)
SRAM - Asynchronous Memory IC 4Mbit Parallel 10 ns 48-CABGA (9x9)
1. Substitution Conclusion for AS7C34098A-10BIN
The AS7C34098A-10BIN is a fully functional replacement for the original part in terms of core specifications (4Mbit density, 256Kx16 organization, asynchronous parallel interface, 3.3V operation). Its 10ns access time represents a performance upgrade over the original part's 15ns rating. The primary constraint is the package difference: the original part uses a 48-CABGA (9x9) package, whereas the AS7C34098A-10BIN is supplied in a 48-MiniBGA (8x10) package. The ball map and package outline dimensions are likely incompatible, preventing a direct drop-in, solder-to-solder replacement on an existing PCB. A board layout redesign is mandatory. Therefore, this substitution is not feasible for rework on an existing PCB. For a new design, the substitution is electrically viable but requires adaptation to the new package footprint.
2. Substitution Conclusion for 71V416S10BEG8
The 71V416S10BEG8 is a highly viable and ideal direct replacement. It is from the same manufacturer (Renesas) and product family as the original part (71V416L15BEG8). Both devices are identical in package (48-CABGA), voltage range, memory density, and organization. The key difference is the speed grade: the "L15" suffix on the original denotes a 15ns access time, while the "S10" suffix on the replacement indicates a 10ns access time. The 71V416S10BEG8 offers faster read/write performance, constituting a pin-compatible, package-compatible performance upgrade. In the vast majority of systems, substituting with a faster SRAM is fully compatible, as it meets the original, more relaxed timing requirements. This device can directly replace the original part with an associated performance improvement.
Analysis ID: 1A1D-4771000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com