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
From the perspective of core electrical parameters and logic functionality, the 74FCT162245ATPAG can serve as a complete drop-in replacement for the original part. Both are non-inverting, dual 8-bit, tri-state transceivers with identical supply voltage ranges (4.5V to 5.5V) and drive capabilities (24mA). The primary difference lies in the package: the original part is a 48-SSOP from TI (body width 7.50mm), while the substitute is a 48-TSSOP from Renesas (body width 6.10mm). The physical dimensions and lead pitch likely differ between these packages (typically 0.635mm for SSOP vs. 0.5mm for TSSOP), making a direct 1:1 footprint swap on the PCB potentially unfeasible. The compatibility of the PCB footprint design must be re-evaluated. Provided the PCB layout can be adapted to accommodate the new package, a direct substitution is viable at the electrical and functional level.
2. 74FCT162245CTPAG8 Substitution Conclusion
The 74FCT162245CTPAG8 is identical to the 74FCT162245ATPAG in function, electrical performance, and package form. Therefore, its substitution conclusion aligns with the statement above. This part is fully compatible with the original CY74FCT162245TPVC regarding key parameters such as logic function, supply voltage, and output current. The core distinction, again, is the physical difference arising from the package outline (48-TSSOP vs. 48-SSOP), which affects body dimensions and lead pitch. A direct "pin-for-pin" solder replacement is not possible on the physical layer; it is essential to verify that the target PCB's pad design is suitable for the narrower, potentially denser-pitch TSSOP package. Once this physical compatibility issue is resolved, this device qualifies as a fully functional electrical substitute.
Analysis ID: 3192-9819000
Based on part parameters and for reference only. Not to be used for procurement or production.
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