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-SSOP
Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-TSSOP
1. 74FCT163245CPVG Substitution Conclusion
Not a direct substitute. While the logic function, direction and enable control (non-inverting transceiver, 2x8-bit, tri-state outputs) and package type (48-SSOP) are fully compatible, the core supply voltage is mismatched: the original part is a 5V system device (4.5-5.5V), whereas the substitute is a 3.3V system device (2.7-3.6V). On a board designed for the original 5V system, the operating voltage and logic levels would exceed the substitute's absolute maximum ratings, leading to overvoltage damage. Furthermore, its output high-level drive current (8mA) is lower than the original's (24mA), which may result in insufficient performance in applications requiring equivalent pull-up drive strength. This part is only suitable for new systems designed for 3.3V operation or where level translation is acceptable.
2. 74FCT162245CTPAG Substitution Conclusion
Functionally substitutable, but requires design adaptation. Its core electrical parameters, including supply voltage range (4.5-5.5V), logic type, and output drive capability (24mA sink/source) are consistent with the original part, ensuring proper operation and performance matching within the same 5V system environment. The primary difference lies in the package outline: the original part uses a 48-BSSOP (width 7.50mm), while the substitute uses a 48-TSSOP (width 6.10mm), resulting in a package width reduction of approximately 1.4mm. Their PCB footprints are not compatible; the substitute cannot be directly soldered onto a board designed for the original footprint. To implement this substitution, the PCB must be redesigned to accommodate the narrower TSSOP package, or an appropriate adapter socket/board must be used.
Analysis ID: 0F67-F22F000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com