The HEF4543B is a BCD to 7-segment latch/decoder/driver for liquid crystal and LED displays. It has four address inputs (D0 to D3), an active LOW latch enable input (LE), an active HIGH blanking input ...

The 74HC(T)4511 is a BCD to 7-segment latch/decoder/driver that features latch storage of BCD inputs, blanking input, lamp test input, a driving common cathode LED displays, 10 mA drive capability per ...

[spencerhamblin] is starting his explorations into digital electronics the hard way: reproducing a “simple” IC’s functionality by wiring up a board full of discrete transistors. In this case, the end ...