4000 series cmos logic family texas instruments cd4510be this texas instruments cd4510b bcd presettable updown counter ic is available in a dil 16 package a part of the cmos 4000 range the 4510b contains four synchronously clocked d type flip flops connected as counters medium speed operation synchronous internal carry propagation reset and preset capability standard symmetrical output characteristics texas instruments cd4510be bcd up down counter