I have looked in the data sheets, as well as the TI article, but I am still unsure of the answer to this question:
What is the practical difference between a 7446 ("BCD to 7 segment decoder/driver with 30V open collector outputs"), a 7447 ("BCD to 7-segment decoder/driver with 15V open collector outputs"), a 7448 ("BCD to 7-segment decoder/driver with Internal Pullups"), and a 7449 ("BCD to 7-segment decoder/driver with open collector outputs").
To drive a normal 7 segment LED common-cathode display, can I use any of them? If not, what are they for?