IC 4040

The CD4040BC   is a 12-stage ripple carry binary counter. The counters are advanced one count on the negative transition of each clock pulse. The counters are reset to the zero state by a logical “1” at the reset input independent of clock. 

Features:

•  Wide supply voltage range: 1.0V to 15V
•  High noise immunity: 0.45 VDD (typ.)
•  Low power TTL compatibility: Fan out of 2 driving 74Lor 1 driving 74LS
•  Medium speed operation: 8 MHz type. at VDD = 10V
•  Schmitt trigger clock input