SN74AXC1T45: SN74AXC1T45 DIR PIN

Rajat Singh

Part Number: SN74AXC1T45

Hi Team,

Please have a look into the schematic implemematation of buffer.

DIR pin should be directly connected to VCC or With Pull-up? for A to B direction

DIR PIN should be directly connected to GND or with resistor? FOR B to A direction

0 Clemens Ladisch 5 months ago

Guru 267980 points

DIR is a high-impedance CMOS input and does not need a resistor.

You would want a resistor only if you expected to change the signal for debugging.

0 Rajat Singh 5 months ago in reply to Clemens Ladisch

Thanks Clemens.

I gor this doubt as PCB layout placment shown one res to VCCA.

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