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. 74FCT162H245ATPACT Substitution Conclusion
The 74FCT162H245ATPACT is compatible with the original part in terms of logic function, supply voltage, and bus interface. However, two key differences must be noted: first, its output drive current is symmetric (24mA/24mA for the TI part versus 32mA/64mA for the original), resulting in weaker drive capability, especially on the low side, which may affect signal integrity or load capacity under heavy loads. Second, it is packaged in a 48-TSSOP (6.10mm width), which is narrower than the original 48-SSOP (7.50mm). Direct substitution would therefore require PCB layout redesign. Overall, it can serve as a functional replacement, but actual load conditions and package compatibility must be evaluated.
2. 74FCT162H245ATPVC Substitution Conclusion
The 74FCT162H245ATPVC matches the original part exactly in logic function, supply voltage, and package dimensions (48-BSSOP, 7.50mm wide), offering direct physical compatibility. The primary difference lies in the output drive current: it provides symmetric 24mA/24mA drive versus the original asymmetric 32mA/64mA. This may reduce low-level drive strength, so signal swing and timing should be verified in high-speed or high-load applications. This device can be used as a pin-compatible alternative, but circuit validation focusing on drive capability is recommended.
Analysis ID: 936A-BE36000
Based on part parameters and for reference only. Not to be used for procurement or production.
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