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. CY74FCT16245ATPVCT Substitution Conclusion
The CY74FCT16245ATPVCT can generally serve as a drop-in replacement, though attention must be paid to differences in drive strength. Its logic function, voltage range, and package (48-BSSOP) are fully compatible with the original part. The key distinction lies in the output current capability: the TI device offers a high-level output current of 32mA (vs. 24mA for the original) and a low-level output current of 64mA (vs. 24mA for the original). The TI part provides improved noise immunity and faster edge rates when driving capacitive loads or long traces. However, if the original design relied on specific current limits for impedance matching or power management, direct substitution may require re-evaluation of signal integrity and power loading. Given pin compatibility and similar timing parameters, the replacement is typically acceptable.
2. CY74FCT16245CTPACT Substitution Conclusion
The CY74FCT16245CTPACT is electrically feasible for substitution, but package compatibility presents a risk. Its logic function, voltage range, and drive capability (32mA/64mA) are identical to those of the CY74FCT16245ATPVCT. The primary difference is the package: the substitute uses a 48-TSSOP (width 6.10mm), while the original part is in a 48-BSSOP (width 7.50mm). The narrower body and reduced overall footprint—while maintaining the same pin pitch—may cause mechanical interference in the PCB layout or mismatch in thermal design. If the original board’s mounting holes or routing were designed for the BSSOP width, direct soldering and installation will not be possible. Substitution is only recommended if sufficient PCB space is available or layout adjustments can be made; otherwise, a redesign for package adaptation is required.
Analysis ID: 293E-E440000
Based on part parameters and for reference only. Not to be used for procurement or production.
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