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 full replacement for the original part. Both are non-inverting, dual 8-bit, tri-state transceivers with identical supply voltage range (4.5V to 5.5V) and output drive capability (24mA). The difference lies in the package: the original part uses a 48-BSSOP (7.50mm width), while the substitute uses a 48-TSSOP (6.10mm width). The replacement package is narrower; although the pin pitch (typically 0.5mm) may remain the same, the physical dimensions and pad layout differ. Therefore, it is not a drop-in replacement. PCB layout must be redesigned to accommodate the new package outline.
2. 74FCT162245CTPAG8 Substitution Conclusion
The 74FCT162245CTPAG8 is also fully equivalent to the original part in electrical specifications and logic function, including supply voltage, output current, and switching characteristics. The key distinction, again, is the package size: it uses the same 48-TSSOP (6.10mm width) as the part above, not the original 48-BSSOP (7.50mm width). Additionally, the suffix “CTPAG8” may indicate a specific manufacturing lot, packaging form (such as tape-and-reel), or quality control level, which typically does not affect basic electrical performance. While functionally a direct replacement, it is physically incompatible; the PCB footprint must be modified accordingly, otherwise the part cannot be mounted.
Analysis ID: 88A6-E2E3000
Based on part parameters and for reference only. Not to be used for procurement or production.
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