MC74AC4040

MC74AC4040 12-Stage Binary Ripple Counter The MC74AC4040 consists of 12 master-slave flip-flops. The output of each flip-flop feeds the next and the frequency at each output is half that of the preceding one. The state of the counter advances on the negative-going edge of the Clock input. Reset is asynchronous and active-high. State changes of the Q outputs do not occur simultaneously because of internal ripple delays. Therefore, decoded output signals are subject to decoding spikes and may have to be gated with the Clock of the MC74AC4040 for some designs. Features 140 MHz Typ. Clock Outputs Source/Sink 24 mA Operating Voltage Range: 2.0 to 6.0 V High Noise Immunity These are Pb−Free Devices VCC Q11 Q10 Q8 16 15 14 13 Q9 RESET CLK Q1 12 11 10 9 www.onsemi.com 16 1 MARKING DIAGRAM 16 SOIC−16 D SUFFIX CASE 751B 1 AC4040G AWLYWW A = Assembly Location WL = Wafer Lot Y = Year WW = Work Week G = Pb−Free Package ORDERING INFORMATION See detailed ordering ...