Original Part
Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-TSSOP
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. 74FCT16245CTPVG8 Substitution Conclusion
The 74FCT16245CTPVG8 can serve as a replacement for the original part CY74FCT16245TPACT; however, attention must be paid to physical compatibility issues arising from package differences. The discrepancy lies in the package outline: the original device is housed in a 48-TFSOP package with a width of 6.10mm, whereas the substitute uses a 48-BSSOP package with a width of 7.50mm. The wider footprint of the substitute may prevent direct insertion into the original PCB layout, necessitating a redesign or verification of mounting clearance. All other key parameters—including logic type, output current (32mA high/64mA low), and supply voltage range (4.5V to 5.5V)—are identical, ensuring full electrical and functional compatibility. This substitution is viable if the PCB layout can accommodate the larger package and the application does not depend on precise mechanical dimensions; otherwise, it is not recommended.
2. 74FCT162245CTPAG Substitution Conclusion
The 74FCT162245CTPAG is mechanically compatible with the original CY74FCT16245TPACT, but exhibits a significant difference in output drive capability. The distinction is in the output current: the original device supports 32mA high/64mA low, while the substitute provides only 24mA high/24mA low. The reduced drive strength of the substitute may be insufficient for high-load or high-speed switching applications, such as driving large capacitive loads or multiple bus lines, potentially leading to signal integrity degradation or increased propagation delay. Other parameters—including logic type, supply voltage, and package (48-TFSOP)—are identical, ensuring physical compatibility and basic functionality. This substitute can be considered if the target application has low drive current requirements (e.g., low-power or light-load scenarios); however, it is not advisable for high-current applications.
Analysis ID: 27B9-7B15000
Based on part parameters and for reference only. Not to be used for procurement or production.
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