Hello,
What is the typical current this chip can source while driving an output high? I had trouble finding on the Recommended Operating Conditions.
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Hello,
What is the typical current this chip can source while driving an output high? I had trouble finding on the Recommended Operating Conditions.
Hi Zachary,
The typical output impedance when driving a high level can be estimated by the datasheet (IOH = 0.4mA, VOH = 3.1V, and VDD = 3.3V).
Rout = (3.3V - 3.1V) / 0.0004A
Rout = 500 Ohms
In this case the datasheet seems to be very conservative as the IBIS model shows ~ -10mA is available at a Vout of 3.1V. This gives an Rout = 20 Ohms. This is similar to the original design review which has simulations showing Rout = 25 Ohms (typical).
Regards,
Lee