MM74HC4017

The MM54HC4017/MM74HC4017 is a 5-stage Johnson counter with 10 decoded outputs that utilizes advanced silicon- gate CMOS technology. Each of the decoded outputs is normally low and sequentially goes high on the low to high transition of the clock input. Each output stays high for one clock period of the 10 clock period cycle. The CARRY output transitions low to high after OUTPUT 9 goes low, and can be used in conjunction with the CLOCK ENABLE to cascade several stages. The CLOCK ENABLE input disables counting when in the high state. A RESET input of MM74HC4017 is also provided which when taken high sets all the decoded outputs low except output 0.

The MM54HC4017/MM74HC4017 is functionally and pinout equivalent to the CD4017BM/CD4017BC. It can drive up to 10 low power Schottky equivalent loads. All inputs are protected from damage due to static discharge by diodes from V_CC and ground.