Hello Team,
For 3.3V application, the max Voh is 0.5V@24mA, but the ASIC Vil is 0.3V, so there should be risk.
Can you share the internal circuit of this part? Why the Voh is different when there is different Ioh? Thanks
Regards,
Nanfang
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Hello Team,
For 3.3V application, the max Voh is 0.5V@24mA, but the ASIC Vil is 0.3V, so there should be risk.
Can you share the internal circuit of this part? Why the Voh is different when there is different Ioh? Thanks
Regards,
Nanfang
The output MOSFET behaves pretty much like a resistor when in the allowed range, so the actual VOH depends linearly on the current.
(See figure 16 of Input and Output Characteristics of Digital Integrated Circuits at 3.3-V Supply Voltage (SZZA010).)
The input impedance of a CMOS input is approximately infinite, so the actual current is approximately zero.
Hello Emrys,
Thanks, it is a push-pull COMS inverter. My application has very small current drive. I just want to know what's the internal circuit and how to calculate the resistor, now I know it, thanks
Regards,
Nanfang