FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ
The AXC family of Voltage Translators have built in dynamic pull-downs at the I/O. These pull-downs assist with with the glitch free power sequencing feature included in this family.
The pull-downs were designed to be weak as to not contend with any CMOS driver connected to the I/O. However, when a weak pull-up is added to the I/O it can create a voltage division.
If there is a need to have pull-ups connected to the I/O of an AXC translator, it is recommended to keep the value below 30 kΩ.
Internal pull-downs may be different for different channel counts (AXC8T, AXC4T, AXC2T, AXC1T). See respective data sheets for specific recommendations.