Original Part
SDRAM - DDR Memory IC 128Mbit Parallel 167 MHz 700 ps 66-TSOP
Alternative Part
SDRAM - DDR Memory IC 128Mbit Parallel 167 MHz 700 ps 66-TSOP
SDRAM - DDR Memory IC 128Mbit Parallel 167 MHz 700 ps 66-TSOP
1. MT46V16M8TG-6T L:D TR Substitution Conclusion
This part cannot serve as a direct replacement for the original MT46V8M16P-6T. The core difference lies in the memory organization: the original device is configured as 8M x 16 (16-bit data bus width), whereas the substitute is organized as 16M x 8 (8-bit data bus width). This results in incompatibility at both the physical connection and system addressing levels. If the original design is built around a 16-bit bus, switching to an 8-bit device would halve the data path width, necessitating redesign of PCB routing, controller configuration, and potentially the memory controller initialization code. Without these changes, the system will not function. Although the capacity (128Mbit), package (66-TSOP), and timing (167MHz) are identical, the bus width mismatch represents a fundamental and irreconcilable hardware incompatibility.
2. MT46V16M8TG-6T:D TR Substitution Conclusion
This part is also not a direct replacement for the original MT46V8M16P-6T. It is identical to the part described above, sharing the same 16M x 8 memory organization, which fundamentally conflicts with the 8M x 16 architecture of the original device. The suffix variations ":D" and "L:D" likely denote non‑technical differences such as tape‑and‑reel packaging or environmental designations (e.g., lead‑free process) and do not affect electrical specifications. The substitution challenge remains exactly the same: the target system’s memory controller must support an 8‑bit bus configuration, and the hardware layout must be adapted accordingly. Direct replacement without these adjustments will result in system failure.
Analysis ID: D61D-EBB5000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com