SN74LVC244A: Bus-hold input over-drive current to change state

Johnny Guo

Other Parts Discussed in Thread: SN74LVC244A, SN74LVCH244AMichael，

Thanks for your information. I have another question. What is the Bushold Input Over-Drive Current to Change State of SN74LVC244A?

Johnny

over 6 years ago

0 Clemens Ladisch over 6 years ago

Guru 244230 points

The SN74LVC244A does not have bus-hold inputs.

Where did you see this parameter?

0 Emrys Maier over 6 years ago

TI__Guru* 96591 points

Hi Johnny,

I have split your question into a unique thread - please post new questions to new threads in the future as this helps others find them more easily and helps our team track issues more accurately.

The SN74LVC244A does not have an input bus-hold circuit. Could you be referring to the SN74LVCH244A? That device requires approximately 230uA max of input drive current to switch. There is a graph in the application report "Bus-Hold circuit" specifically for this device, which I copied for this post:

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SN74LVC244A: Bus-hold input over-drive current to change state