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-TSSOP
Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-SSOP
1. Substitution Conclusion for 74FCT16245CTPAG
The 74FCT16245CTPAG is fully compatible with the original part CY74FCT16245CTPVC in terms of electrical parameters and can serve as a direct replacement, though the impact of package differences must be considered. The distinction lies in the package: the original device uses a 48-BSSOP (7.50mm width), while the substitute uses a 48-TSSOP (6.10mm width), which is thinner and smaller in footprint. This may lead to PCB layout mismatch, necessitating a redesign of the pad pattern or adjustment of the mounting space. Key parameters such as logic type, supply voltage (4.5V–5.5V), and output current (32mA high / 64mA low) are identical, with no functional differences. Therefore, substitution is viable provided the package compatibility is addressed.
2. Substitution Conclusion for 74FCT163245CPVG
The 74FCT163245CPVG is not recommended as a direct replacement for the original CY74FCT16245CTPVC due to significant electrical parameter mismatches that could lead to system failure. The differences include supply voltage and output current: the original part is designed for a 5V system (4.5V–5.5V) with an output current of 32mA high / 64mA low, whereas the substitute is specified for a 3.3V system (2.7V–3.6V) with reduced output current of 8mA high / 24mA low. The substitute is incompatible with a 5V logic-level environment, which may cause signal level mismatch, reduced noise margin, or insufficient drive capability, thereby affecting circuit stability and load-driving performance. Although both devices share the same 48-BSSOP (7.50mm width) package and are physically interchangeable, the electrical incompatibility requires the system to support 3.3V operation or include an additional level translator; otherwise, substitution is not feasible.
Analysis ID: 168D-8F3D000
Based on part parameters and for reference only. Not to be used for procurement or production.
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