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-TSSOP
1. 74FCT162245ATPAG Substitution Conclusion
The 74FCT162245ATPAG is a fully viable substitute for the original part in terms of core electrical parameters and functionality. Key specifications such as logic type, bit width, output current, and supply voltage are identical. The primary and only technical distinction lies in the package: the original device (TI) uses a 48-BSSOP (7.50mm body width), whereas the substitute (Renesas) uses a 48-TFSOP (6.10mm body width). While both packages are physically compatible in terms of footprint and pin pitch (0.5mm), there is a 1.4mm difference in package width. Feasibility of the substitution is highly dependent on the PCB layout. If the existing board pads are designed for the wider BSSOP, the narrower TFSOP device can be mounted, though minor risks related to mechanical stability or solder joint appearance may exist. For new designs, the substitute can be used directly.
2. 74FCT162245CTPAG8 Substitution Conclusion
The 74FCT162245CTPAG8 is also electrically and functionally equivalent to the original part. The package difference is identical to the ATPAG case described above (48-TFSOP replacing 48-BSSOP). Additionally, the suffix "C" may indicate minor internal manufacturer adjustments related to process, lot, or unspecified secondary parameters (e.g., switching characteristics, input tolerance). However, these variations typically do not impact basic logic function and drive capability in standard 5V systems. The substitution feasibility conclusion is the same as for the ATPAG: electrically compatible, with a physical package size difference. Successful substitution requires confirming that the footprint size discrepancy is acceptable within the existing PCB design and that the application is not sensitive to potential minor variations in dynamic performance.
Analysis ID: 47F6-7DD0000
Based on part parameters and for reference only. Not to be used for procurement or production.
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