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. CY74FCT16245ATPACT Substitution Conclusion
The CY74FCT16245ATPACT can functionally replace the original 74FCT162245CTPVG, as both are non-inverting transceivers with identical configurations: 2 elements, 8 bits per element, tri-state outputs, and an operating voltage range of 4.5V to 5.5V. Key differences include higher output drive capability (32mA high / 64mA low vs. the original symmetric 24mA), making the TI part suitable for heavier loads or faster switching scenarios. However, in high-speed circuits, this increased drive may introduce overshoot or ringing, so timing compatibility should be verified. The package differs (48-TFSOP, 6.10mm width vs. original 48-BSSOP, 7.50mm width), resulting in a thinner profile. If the pinout is compatible—typical for standard 48-pin SSOP/TSSOP footprints—direct installation is possible, though mechanical mounting, spacing, or thermal design may require adjustment. Overall, substitution is feasible, but electrical performance and mechanical fit should be validated in the actual application.
2. CY74FCT16245ATPVC Substitution Conclusion
The CY74FCT16245ATPVC is a highly viable replacement for the original 74FCT162245CTPVG, as both are functionally identical non-inverting transceivers (2 elements, 8-bit, tri-state outputs) with the same voltage range (4.5V–5.5V). The only difference is the higher output current (32mA high / 64mA low vs. the original symmetric 24mA), giving the TI device better drive strength for higher current loads or improved signal integrity. When substituting, verify that the original design does not rely on a specific current threshold to avoid potential overdrive issues—though higher current capability is generally safer. The package is identical (48-BSSOP, 7.50mm width), providing direct physical and pin-to-pin compatibility with no PCB layout modifications required. Direct substitution is recommended, though timing and thermal performance should be verified prior to production to ensure seamless integration.
Analysis ID: BFB5-8461000
Based on part parameters and for reference only. Not to be used for procurement or production.
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