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. 74FCT163245CPVG Substitution Conclusion
This part is not suitable as a direct drop-in replacement for the original component. The key differences lie in the operating voltage range (2.7V-3.6V vs. 4.5V-5.5V) and the high-level output drive capability (8mA vs. 24mA). It is a 3.3V low-voltage logic device and cannot function correctly in the original 5V system, as its logic levels are incompatible. Furthermore, its asymmetrical drive current (only 8mA at a high level) may be insufficient to meet the original design's requirements for high-level fan-out or load driving. Direct substitution would likely result in system failure or degraded signal integrity.
2. 74FCT162245CTPAG Substitution Conclusion
This part is electrically a viable direct substitute but presents a packaging constraint. Its core logic function, operating voltage (4.5V-5.5V), and symmetrical drive current (24mA) are fully consistent with the original part, ensuring electrical compatibility and drive performance under the same supply voltage. The primary difference is in the package outline (48-TSSOP vs. 48-SSOP/BSSOP). The TSSOP package width (6.10mm) is narrower than the SSOP (7.50mm), and their footprints are incompatible. It cannot be directly soldered onto the PCB pads designed for the original component. PCB layout updates are mandatory for the substitution.
Analysis ID: 247F-A717000
Based on part parameters and for reference only. Not to be used for procurement or production.
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