Original Part
Alternative Part
1. SN74HCT04PW Substitution Conclusion
The SN74HCT04PW can serve as a direct replacement for the MM74HCT04MTCX, as both devices are identical in key logical function, supply voltage range (4.5V–5.5V), input threshold levels (0.8V low, 2V high), quiescent current (2µA), and package (14-TSSOP). The primary differences are that the TI part offers slightly lower output drive current (4mA vs 4.8mA), though this generally does not affect fan-out capability under standard HCT loads; and it exhibits marginally better propagation delay (18ns @ 5.5V vs 20ns @ 5V), which may provide a slight speed improvement under equivalent conditions. In summary, the electrical compatibility is high, allowing for drop-in replacement. Only when driving exceptionally high capacitive or current loads should output stability be verified.
2. SN74HCT04PWT Substitution Conclusion
The SN74HCT04PWT is electrically identical to the SN74HCT04PW, with the suffix “T” solely indicating tape-and-reel packaging and having no impact on performance. Therefore, the substitution conclusion remains the same as for the SN74HCT04PW: it can fully replace the original part, offering identical functional and package compatibility. The minor differences in output current (4mA) and propagation delay (18ns @ 5.5V) are negligible for the vast majority of applications. However, in high-speed or heavily loaded scenarios, it is advisable to validate timing margins and drive capability through bench testing.
Analysis ID: 16BB-D5E2000
Based on part parameters and for reference only. Not to be used for procurement or production.
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