General Description

The CD4020BC, CD4060BC are 14-stage ripple carry binary counters, and 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: 3.0V to 15V

■ High noise immunity: 0.45 VDD (typ.)

■ Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS

■ Medium speed operation: 8 MHz typ. at VDD = 10V

■ Schmitt trigger clock input