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. CY74FCT16245TPACT Substitution Conclusion
This device can serve as a direct replacement, with attention required to the mechanical package dimensions. The part is fully equivalent to the Original Part (Renesas) in core electrical performance and functionality, including logic type (non-inverting transceiver), bit width (2x8-bit), supply voltage (4.5–5.5V), and critical output drive currents (32mA high-level, 64mA low-level). It is a drop-in replacement in terms of signal integrity, load driving capability, and power supply design. The primary distinction lies in the package outline: the Original Part uses a slightly wider 48-SSOP, while the TI variant is housed in a narrower 48-TSSOP. The pinouts are compatible; however, the TSSOP width (6.10mm) is less than that of the SSOP (7.50mm). Verification is required to ensure the new package’s footprint and lead form factor are fully compatible with the existing PCB layout and pad design. Minor assembly adjustments may be necessary.
2. 74FCT162245ATPACT Substitution Conclusion
This is not a direct replacement and should only be considered for use in low-load scenarios following careful evaluation. While similar in logic function, supply voltage, and package (TSSOP) to the CY74FCT16245TPACT, a key technical difference exists: its output drive current is significantly lower, with both high- and low-level output currents rated at 24mA, substantially below the Original Part’s 32mA/64mA. This device exhibits reduced fan-out capability (number of driven loads) and weaker performance when driving long traces or heavy capacitive loads. In an original design with heavy bus loading or stringent timing edge requirements, direct substitution could lead to increased signal rise/fall times, failure to meet voltage levels, or even system instability. A rigorous assessment of the actual load conditions in the current system is mandatory prior to substitution to ensure the derated drive capability still meets requirements.
Analysis ID: E893-9AB1000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com