Original Part
Alternative Part
1. MM74HCT04MTCX Substitution Conclusion
Fully substitutable. This part is fully compatible with the original device in terms of basic logic function, supply voltage (4.5V–5.5V), input levels (low: 0.8V, high: 2V), and package (14-TSSOP), ensuring both electrical and physical compatibility. Differences include a significantly lower static power consumption (2μA quiescent current vs. 20μA), resulting in improved standby efficiency. Additionally, it offers symmetrical output drive capability of 4.8mA for both high and low levels (compared to 4mA/5.2mA for the original), providing more balanced load-driving characteristics. Propagation delay is slightly better (20ns @5V vs. 22ns @4.5V), offering marginally faster switching under 5V operation. All these variations represent performance enhancements or optimizations and do not prevent direct drop-in replacement.
2. MC74HCT04ADTR2G Substitution Conclusion
Fully substitutable. This device is identical to the original in logic function, supply range, input logic thresholds, and package, ensuring interface compatibility. Key differences include a further reduced quiescent current of 1μA, delivering optimal power performance. The output drive current is symmetrical at 4mA for both high and low levels; while the low-level drive is slightly lower than the original’s 5.2mA, it remains within the standard HCT load specification. Propagation delay is notably shorter at 17ns @5V, enabling faster signal transmission and greater system timing margin. These changes constitute performance improvements or parameter refinements and allow seamless replacement in the vast majority of applications.
Analysis ID: 425E-3E60000
Based on part parameters and for reference only. Not to be used for procurement or production.
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