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. CY74FCT162245ATPVC Substitution Conclusion
From a technical parameter standpoint, the CY74FCT162245ATPVC is fully compatible with the original part 74FCT16245ATPVG8 in terms of logic function (non-inverting transceiver, 2 elements, 8-bit per element, tri-state outputs), supply voltage (4.5V to 5.5V), and package (48-BSSOP), enabling a pin-to-pin replacement. The primary difference lies in the output drive current: the original part provides 32mA at high level and 64mA at low level, while the CY74FCT162245ATPVC offers 24mA for both high and low levels. The TI part’s reduced drive capability may be insufficient to maintain signal integrity or switching speed in applications requiring high current drive for heavy loads—such as multi-device buses or long transmission lines. However, substitution is feasible if the actual load current does not exceed 24mA, as in light-load or standard interface scenarios. Otherwise, system redesign or additional buffering should be considered.
2. CY74FCT162245TPVC Substitution Conclusion
The CY74FCT162245TPVC shares identical parameters with the CY74FCT162245ATPVC and likewise matches the original 74FCT16245ATPVG8 in logic function, voltage range, and package, supporting direct physical replacement. The key technical difference remains the output drive current: the original part provides 32mA high / 64mA low, while the CY74FCT162245TPVC delivers 24mA for both levels. This indicates a reduced drive capability in the TI part, which may affect performance in high-slew-rate or high-capacitive load environments—for instance, potential delay or signal degradation when driving high-density backplanes or remote devices. For most standard 5V systems with load currents within 24mA, such as on-board data exchange, substitution is acceptable. Nevertheless, it is advisable to verify actual load conditions to ensure reliability.
Analysis ID: 34E4-BFDD000
Based on part parameters and for reference only. Not to be used for procurement or production.
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