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. 74FCT162245ATPAG Substitution Conclusion
In terms of core logic functionality and electrical performance, this part can fully replace the original component. Both are non-inverting, 16-bit (2x8), tri-state, same-direction transceivers with identical supply voltage range (4.5V–5.5V) and drive capability (24mA). The difference lies in the package: the original part uses the wider 48-BSSOP (7.50mm body width), while the substitute uses the narrower 48-TSSOP (6.10mm body width). Their physical outline dimensions and lead pitch are the same, but the package body width differs. Therefore, the PCB layout—specifically the land pattern and component footprint—must be re-evaluated and modified for substitution. A direct pad-for-pad replacement is not feasible. However, the functional pinout is identical, ensuring circuit-level compatibility.
2. 74FCT162245CTPAG8 Substitution Conclusion
This part is identical to the 74FCT162245ATPAG in key specifications and package type, leading to the same substitution conclusion: it is fully compatible in function and electrical performance and can directly replace the original part for logic functionality. The difference, again, is the package body width—the original uses a wide-body SSOP (7.50mm), while this part uses a narrow-body TSSOP (6.10mm). To implement the substitution, the PCB footprint and land pattern must be adapted accordingly; this is the sole physical constraint. There is no difference in electrical interface or performance. The suffix "8" typically denotes tape-and-reel packaging specifications and does not affect the device functionality.
Analysis ID: 8974-5152000
Based on part parameters and for reference only. Not to be used for procurement or production.
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