4000 series cmos logic surface mount st hcf4024bm1 7 stage binary counterdivider ic hcf4000 family 4024 base number 3 to 20v supply voltage 40ns propagation delay 02w power 14 soic 55 to 125c the hcf4024b is a ripple carry binary counter all counter stages are master slave flip flops st hcf4024bm1 40 24bm 7 stage binary counter smd