4000 Series CMOS Logic Family – Texas Instruments CD4510BE, This Texas Instruments CD4510B BCD presettable up/down 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