74hct series logic texas instruments cd74hct4511e this texas instruments 74hct4511 bcd to 7 segment latchdecoderdrivers ic is available in a dil 16 package a part of the 74hct range a bcd to 7 segment decoderdriver with four address inputs d0 d3 an active low blanking bl input lamp test lt input and a latch enable le input that when high enables the latches to store the bcd inputs when le is low the latches are disabled making the outputs transparent to the bcd inputs te