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SN74LV244A: SN74LV244APWR push pull or open drain?

Part Number: SN74LV244A

Hi 

Could you provide pull high resistance about how many ohm?

SN74LV244APWR should be push pull material,

So when pin1 and pin19 are connected to GND

When VCC is connected to 3.3V standby power, theoretically the input is the high level signal of the 3.3V standby power, and the output is the high level of the 3.3V standby power, but can you tell me how many ohm the internal pull high resistance is at this time?

If this material is push pull material, what does the following open drain mean? Because we know that push pull and open drain will not exist at the same time please let me know thank you