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-SSOP
1. 74FCT162245CTPACT Substitution Conclusion
The 74FCT162245CTPACT is fully compatible with the original part in terms of electrical characteristics, including logic type, output type, supply voltage range (4.5V–5.5V), and output current (24mA high/low). Therefore, it can serve as a functional drop‑in replacement. The primary difference lies in the package: the original device is housed in a 48‑BSSOP package (7.50mm wide), whereas this part uses a 48‑TSSOP (or TFSOP) package with a narrower width of 6.10mm. The substitute package is thinner and narrower. If the PCB layout was designed around the mechanical dimensions of the original package, the substitution may result in mechanical incompatibility or require trace adjustments. Consequently, mechanical compatibility must be evaluated before replacement. If the application can accommodate a narrower package or the PCB can be redesigned, substitution is feasible. Otherwise, direct replacement is not recommended.
2. 74FCT16245TPVCG4 Substitution Conclusion
The 74FCT16245TPVCG4 is identical to the original part in logic function, number of elements, supply voltage range (4.5V–5.5V), and package (48‑BSSOP, 7.50mm wide), ensuring full mechanical compatibility. The key difference is its higher output drive capability: 32mA high‑level and 64mA low‑level, compared to the original’s 24mA high/low. This enhanced drive can support heavier loads or faster switching, but may also increase system power dissipation and signal noise. In noise‑sensitive applications, verification is necessary to ensure that the higher drive does not cause overshoot or degrade signal integrity. If the original design does not impose strict current limits or can tolerate higher drive strength, direct substitution is acceptable. Otherwise, testing and validation are recommended prior to implementation.
Analysis ID: 82C1-177F000
Based on part parameters and for reference only. Not to be used for procurement or production.
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