CAHCT1G126QDCKRQ1 - maximum load capacitance?

Przemyslaw Wcislo

Other Parts Discussed in Thread: SN74AHCT1G126-Q1

What is maximum load capacitance for CAHCT1G126QDCKRQ1 (tri state output buffer gate). My gate is already loaded by 10kohm. Can I connect shunt 0.1uF to gate output?

over 8 years ago

0 Clemens Ladisch over 8 years ago

Guru 259910 points

See SCLA013: AHC(T) Designer's Guide.

Having small load capacitances is perfectly fine (and unavoidable). But with larger capacitances, you risk exceeding the SN74AHCT1G126-Q1's guaranteed output drive of 8 mA, or even the absolute maximum output current of 25 mA, for too long.

What do you need the capacitor for? Can you limit the current to 8 mA?

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CAHCT1G126QDCKRQ1 - maximum load capacitance?