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-SSOP
1. CY74FCT162245TPVC Substitution Conclusion
The CY74FCT162245TPVC is identical to the original 74FCT163245CPVG in terms of logic function, gate count, bit width, output type, and package (48-BSSOP). Key differences lie in the supply voltage range (4.5V–5.5V vs. the original 2.7V–3.6V) and output current capability (24mA/24mA symmetrical vs. the original 8mA high‑level / 24mA low‑level). This device operates at 5V logic levels, whereas the original part is specified for 3.3V systems. Direct substitution in a 3.3V environment may cause functional failure or damage unless the system voltage is compatible or additional level‑shifting is implemented. The higher high‑level drive current improves drive strength but requires careful load matching to avoid overshoot or noise issues. Without modifying the system voltage or interface design, direct replacement is not feasible.
2. CY74FCT16245ATPVC Substitution Conclusion
The CY74FCT16245ATPVC matches the original 74FCT163245CPVG in basic logic parameters and package. However, critical differences exist in supply voltage range (4.5V–5.5V vs. 2.7V–3.6V) and output current (32mA high‑level / 64mA low‑level vs. 8mA/24mA). This device is intended for 5V systems; using it in a 3.3V environment would likely cause level mismatch and functional failure. The increased output current, especially the significantly higher low‑level current, provides greater drive capability suitable for heavy loads, but system power and signal integrity must be evaluated to prevent overloading. In summary, direct substitution is not viable due to voltage incompatibility, unless the system supply is adjusted to 5V and interface compatibility is verified.
Analysis ID: 1C1C-BC4E000
Based on part parameters and for reference only. Not to be used for procurement or production.
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