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. CY74FCT16245TPVCT Substitution Conclusion
The device is fully compatible in function and package footprint, making it a direct drop-in replacement. The key difference lies in its enhanced drive capability (output high/low current: 32mA/64mA vs. the original's 24mA/24mA). This variant offers superior noise margin and signal integrity when driving heavy loads, such as multi-drop parallel buses or long traces, making it a performance-enhanced substitute. In most applications, this difference does not introduce compatibility issues; instead, it increases the system's design margin.
2. 74FCT162245ATPACT Substitution Conclusion
While functionally and electrically identical, this device is not a direct substitute due to package incompatibility. The difference is in the package profile: it uses a narrower 48-TSSOP package (width: 6.10mm) compared to the original 48-BSSOP package (width: 7.50mm). The PCB land pattern and dimensions differ between the two packages, preventing direct soldering onto a board designed for the original component. A PCB layout redesign is mandatory for its use.
Analysis ID: 55EE-B9B0000
Based on part parameters and for reference only. Not to be used for procurement or production.
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