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SN74AC04: IOH Questions

Part Number: SN74AC04

Hello,

Please answer my customer's question:

IOHmax = 75mA (However, it is 2ms or less. In this case, it is judged that there is no problem because the ON ratio is 1/246 under the condition of 65μ / 16ms.) Question 1: Is the above judgment valid when using it permanently? ?

Question 2: If Question 1 is not valid, what is the above table for?

Question 3: VOH at 75 mA is Min: 3.85 V. How much does it vary for each individual when the load ON time is 65μ / cycle is 16 ms?

Regards,

Itoh