Original Part
Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-TSSOP
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-TSSOP
1. 74FCT162245ATPAG Substitution Conclusion
From the perspective of core functionality and package, the 74FCT162245ATPAG can serve as a substitute for the original TI part. Both devices are 5V-powered, bidirectional, non-inverting 16-bit transceivers with tri-state outputs, and their packages are compatible. The key difference lies in the drive strength: the TI device specifies an output current of 32mA (source) / 64mA (sink), whereas the Renesas part offers a symmetrical 24mA/24mA. In applications requiring strong sink current—particularly for driving heavy capacitive loads or achieving a lower VOL—the Renesas device may not fully match the performance of the TI component. There is a risk of insufficient drive or slowed switching edges. If the original design leverages the TI device's high 64mA sink capability, direct substitution could be problematic. However, if the system load is light or sufficient margin exists, substitution is feasible, though verification of timing and signal integrity in the target application is recommended.
2. 74FCT162245CTPAG8 Substitution Conclusion
The 74FCT162245CTPAG8 shares identical key electrical parameters with the aforementioned ATPAG variant, including drive current (24mA/24mA), logic function, supply voltage, and package. These two should be considered different suffix versions of the same electrical specification. Typically, suffix variations may denote differences in production lot, lead-free/plating finish, or tape-and-reel packaging specifications, none of which affect core electrical performance. The substitution conclusion is therefore identical to that for the ATPAG: it can replace the original TI part in applications where the drive requirement does not exceed the symmetrical 24mA output. The same caution regarding the halved low-level drive capability (64mA vs. 24mA) and the recommendation for application validation apply. When selecting this part, it is sufficient to confirm that the exact packaging or environmental specification indicated by the 'CTPAG8' suffix meets production requirements.
Analysis ID: E5EB-5631000
Based on part parameters and for reference only. Not to be used for procurement or production.
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