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. 74FCT162245CTPACT Substitution Conclusion
Substitution is feasible, but attention must be paid to package compatibility. In terms of logic function, supply voltage, and fundamental electrical parameters, this device is identical to the original part; both are 16-bit non-inverting 3-state transceivers. The core difference lies in the package: the original part is a 48-BSSOP (SSOP) with a body width of 7.50mm, whereas this substitute is a 48-TSSOP with a width of 6.10mm. The package outlines and potentially the pin pitch differ, which may introduce mechanical mounting or soldering issues for a direct drop-in replacement on an existing PCB. For new designs or if PCB layout modifications are acceptable, this part is a direct functional replacement from an electrical perspective.
2. 74FCT16245TPVCG4 Substitution Conclusion
Electrical parameters are not a perfect match; substitution requires evaluation. This device is fully compatible with the original part in logic function, supply voltage, and package (48-BSSOP), allowing for a direct drop-in replacement at the board level. The difference lies in its output drive capability: its output current (32mA High / 64mA Low) is significantly higher than the original's symmetrical 24mA rating. This part offers greater fan-out and bus driving strength. However, this can also lead to faster signal edges and potential risks of overshoot/undershoot. It can be directly substituted in applications with light loads or lower speeds. In high-speed systems or those with stringent signal integrity requirements, an assessment is necessary to determine if the increased drive strength could cause ringing or EMI issues, possibly requiring fine-tuning of termination.
Analysis ID: AEEC-1447000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com