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. 74FCT16245CTPAG Substitution Conclusion
Functionally, the 74FCT16245CTPAG can serve as a replacement, but direct board‑level substitution requires careful evaluation and may not be advisable. The key differences lie in the package outline and output drive capability: The CTPAG is housed in a narrower 48‑TSSOP package (6.10 mm wide), whereas the original part uses a wider 48‑SSOP (7.50 mm wide). This results in a non‑compatible physical footprint, preventing direct soldering onto the existing PCB pads. Additionally, its output current (32 mA source / 64 mA sink) is notably higher than the original’s symmetrical 24 mA. While this provides greater fan‑out and improved noise margin, the increased transient switching current could affect power integrity and signal integrity. These impacts must be assessed to determine acceptability for the target application.
2. 74FCT16245CTPVG8 Substitution Conclusion
Electrically and mechanically, the 74FCT16245CTPVG8 is fully compatible and represents an excellent drop‑in replacement. The only deviation is in output drive strength: the CTPVG8 also offers higher output current (32 mA source / 64 mA sink) compared to the original symmetrical 24 mA. This enhances performance when driving heavy loads, such as multiple bus lines or several inputs. Since the package (48‑BSSOP, 7.50 mm wide) matches the original exactly, direct soldering and mechanical compatibility are assured. The increased drive capability is generally beneficial in most applications; however, it is still recommended to verify that the power supply can accommodate the slightly higher transient current.
Analysis ID: 8F09-CDFC000
Based on part parameters and for reference only. Not to be used for procurement or production.
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