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. SN74ABT162245DGGR Substitution Conclusion
The SN74ABT162245DGGR is functionally compatible with the original 74ABT16245BDL in core logic, supply voltage, and pinout, making it a viable drop-in replacement. One critical difference requires attention: its output drive current is specified as "12mA, 12mA; 32mA, 64mA." This indicates a standard drive capability (likely under Recommended Operating Conditions) of ±12mA, with Absolute Maximum Ratings of ±32mA/64mA. In contrast, the 32mA/64mA rating for the original Nexperia part typically represents its drive capability under recommended conditions. Therefore, under identical load conditions, the SN74ABT162245DGGR may not provide equivalent drive strength or switching speed. Its dynamic performance should be carefully evaluated when driving heavy loads, such as heavily loaded buses, long traces, or high capacitive loads. Additionally, the package changes from an SSOP to a narrower TSSOP, so PCB footprint compatibility must be verified.
2. SN74ABT16245ADGG Substitution Conclusion
The SN74ABT16245ADGG is a more direct and ideal substitute. Its key electrical parameters—including logic function, supply voltage, and, crucially, the output drive current (32mA, 64mA)—are fully aligned with the original Nexperia part. This ensures equivalent bus drive capability and switching performance. The primary differences are physical: the package width changes from a 7.50mm SSOP to a 6.10mm TSSOP. Furthermore, specific DC/AC parameters (e.g., propagation delay, power consumption) may show minor manufacturer-to-manufacturer variations, but these typically fall within the acceptable tolerance range for ABT-family devices. Provided the PCB layout can accommodate the narrower TSSOP footprint, this device offers a near-perfect direct replacement.
Analysis ID: 3B42-D965000
Based on part parameters and for reference only. Not to be used for procurement or production.
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