SN74ALVC244: About the penetration current of SN74ALVC244

user777540

Expert 1020 points

Part Number: SN74ALVC244

Hello,

If the OE pin is high, does a through current flow even if the A pin has a high impedance?

Best regards

Goto

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 316440 points

The A inputs always have high impedance (for allowed input voltages). The leakage current is specified as I_I and is independent of the state of the /OE pins.

0 user777540 over 3 years ago in reply to Clemens Ladisch

Expert 1020 points

When the OE pin is high, input a voltage between high and low to the A pin.
At this time, does a through current flow from the power supply to the ground inside the device?

0 Clemens Ladisch over 3 years ago in reply to user777540

Guru 316440 points

The /OE pins disable only the outputs. For input voltages not at the rails, you will indeed get shoot-through currents.

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SN74ALVC244: About the penetration current of SN74ALVC244