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. 74FCT162245CTPAG Substitution Conclusion
This device is compatible with the original part in terms of logic function, supply voltage, and pin count. However, two key differences exist: First, its output drive capability differs, providing symmetrical 24mA sourcing/sinking current, whereas the original part offers 32mA (high-level) / 64mA (low-level). This may be insufficient when driving heavy loads or in applications requiring high low-level sink current. Second, the package width is narrower (6.10mm vs. 7.50mm). If PCB layout spacing or thermal design relies on the original package dimensions, reassessment for mechanical and thermal compatibility is necessary. This substitute is only suitable for lighter load conditions where the PCB can accommodate the narrower body.
2. 74FCT16245CTPAG8 Substitution Conclusion
This device matches the original part exactly in logic function, supply voltage, and output drive capability (32mA high-level / 64mA low-level). The primary difference is the narrower package width (6.10mm vs. 7.50mm). Electrically, it is a direct replacement; however, the mechanical size variation may cause installation interference or altered thermal conditions. Verification of PCB layout clearance for the narrower body is required. If layout space permits, this device can serve as a drop‑in replacement without any drive‑circuit modifications.
Analysis ID: B89E-2B3F000
Based on part parameters and for reference only. Not to be used for procurement or production.
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