MC14516B Binary Up/Down Counter The MC14516B synchronous up/down binary counter is constructed with MOS Pchannel and Nchannel enhancement mode devices in a monolithic structure. This counter can be preset by applying the desired value, in binary, to the Preset inputs (P0, P1, P2, P3) and then bringing the Preset MC14516B PIN ASSIGNMENT BLOCK DIAGRAM PE 1 16 V DD 1 PE 6 Q0 Q3 2 15 C CARRY IN 5 P3 3 14 Q2 RESET Q1 9 11 P0 4 13 P2 UP/DOWN 10 CARRY IN 5 12 P1 CLOCK Q2 15 14 Q0 6 11 Q1 4 P0 CARRY OUT 7 10 U/D P1 Q3 12 2 V 8 9 R SS P2 13 CARRY 3 P3 7 OUT V = PIN 16 DD V = PIN 8 SS TRUTH TABLE Carry In Up/Down Preset Enable Reset Clock Action 1 X 0 0 X No Count 0 1 0 0 Count Up 0 0 0 0 Count Down X X 1 0 X Preset X X X 1 X Reset X = Dont Care NOTE: When counting up, the Carry Out signal is normally high and is low only when Q0 through Q3 are high and Carry In is low. When counting down, Carry Out is low only when Q0 through Q3 and Carry In are low. ORDERING INFORMATION Device Package Shipping MC14516BDG SOIC16 48 Units / Rail (PbFree) SOIC16 MC14516BDR2G 2500 / Tape & Reel (PbFree) NLV14516BDR2G* For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements AECQ100 Qualified and PPAP Capable.