The CD74HC4017E is a speed CMOS decade counter/divider with ten decoded outputs in a PDIP16 package. This pack contains 9 pieces. It provides ten outputs (Q0–Q9), a carryout for cascading, and standard clock and reset inputs, making it a versatile solution for sequencing, timing, and division tasks in compact digital circuits. Key benefits Simplifies sequencing and timing projects by providing ten decoded outputs from a single clock input. Enables easy expansion through the carryout output to count beyond ten without a microcontroller. Reduces design complexity and component count in LED chasers, pattern generators, and divideby10 applications. Compatible with standard CMOS logic and suitable for 2 V to 6 V supplies, offering lowpower operation in small formfactor packages. Key attributes Functionality: 10stage decade counter with decoded outputs and carryout; clock input and reset input for straightforward sequencing. Compatibility: CMOS 74HC family device designed for use with common logic levels and 2 V to 6 V supply ranges. Package: PDIP16 (Plastic DialIn Package), 16 pins. Size and material: Plastic DIP package; compact 16pin package suitable for throughhole circuit boards. Performance: speed CMOS performance with low static power consumption; suitable for a wide range of digital timing and sequencing tasks. Configuration notes: Reset input initializes the counter to the Q0 state; carryout allows cascading for counts greater than 10. Applications and use cases LED sequencing and chaser effects: drive ten separate outputs to create rolling LED patterns or sequenced indicators in displays and decorative lighting. Divideby10 timing or counter circuits: generate periodic events at onetenth of the input clock frequency for timing relays, timers, or simple digital clock projects. Pattern generation and sequencing without a microcontroller: implement stepwise state machines, event sequencing, or multistage control in automated or educational electronics projects. Because the pack comprises 9 pieces of the CD74HC4017E PDIP16, it can be used for prototyping or production, maintaining consistent performance and footprint across designs.