Hi,
my question is about voltage level shifting chip(txb0104). The problem is that i want to use external pull-ups with it for sd card interfacing, but the chip seems to have internal resistance of about 6-7k itself (with Vcca and Vccb voltages on and OE connected through 10k resistor to Vcca), so my 50-100k external pull-ups won't work. I bought this "magical" chip to avoid using zesistors voltage divider and now i seem to be getting back to the start. Any suggestions?
my question is about voltage level shifting chip(txb0104). The problem is that i want to use external pull-ups with it for sd card interfacing, but the chip seems to have internal resistance of about 6-7k itself (with Vcca and Vccb voltages on and OE connected through 10k resistor to Vcca), so my 50-100k external pull-ups won't work. I bought this "magical" chip to avoid using zesistors voltage divider and now i seem to be getting back to the start. Any suggestions?