Original Part
Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-SSOP
Alternative Part
Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-SSOP
Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-TSSOP
1. 74FCT162245CTPVCG4 Substitution Conclusion
From a functional and basic parametric standpoint, this part number is a viable direct substitute. However, a key discrepancy lies in its drive strength. The difference is in the output current (`I_OH`/`I_OL`), which is symmetrical at 24mA/24mA, whereas the original part features an asymmetrical 32mA/64mA specification (typically stronger low-level sinking capability). Under load conditions requiring high current sink, the TI part offers less drive margin. This may impact signal rise/fall times or noise margin. In high-load or high-frequency applications, it is critical to evaluate whether this difference could lead to timing or signal integrity issues. For lighter loads, it can be considered a direct replacement.
2. 74FCT16245TPACTE4 Substitution Conclusion
This part offers a complete match to the original part in core electrical parameters, such as the drive current of 32mA/64mA. The primary difference is in the physical package. It utilizes a 48-TSSOP package (body width 6.10mm), while the original part is in a 48-SSOP (BSSOP, width 7.50mm) package. The footprint of these two devices is not compatible. Direct replacement would require a PCB redesign, therefore it cannot serve as a "drop-in" substitute. However, if considered during the initial design phase or if board modifications are permissible, it becomes an ideal functional alternative due to its identical electrical performance.
Analysis ID: 088F-6091000
Based on part parameters and for reference only. Not to be used for procurement or production.
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