SN74LVC573A: About TJ of SN74LVC573Apwr

Hi Vera,

For logic devices, the maximum junction temperature is equal to the maximum storage temperature - typically 150C (unless it is specified on the datasheet as something else).

If you want to know the maximum power consumption based on thermals, it would be ~634 mW assuming the worst case operation at 85C.

This is found by taking the maximum temperature rise allowed (150C - 85C) = 65C and diving it by θ_JA

This number doesn't necessarily reflect what the device can do, however, since the absolute maximum ratings must be observed.