CD4017 Decade Counter IC

The CD4017 Decade Counter IC is a CMOS-based digital counter that provides 10 decoded outputs, making it ideal for sequencing applications. It operates as a Johnson counter, incrementing its output on each clock pulse. Widely used in LED chasers, frequency dividers

Specification  :

• Supply Voltage (Vcc): 3V – 15V (typical 5V or 12V)
• Operating Current: 10mA – 20mA
• Clock Frequency (Max): 5MHz (at 10V supply)
• Output Drive Capability: ±10mA
• Logic Family: CMOS

Pin Configuration (16-Pin DIP/SOIC):

• Clock (CLK)  : Advances counter on each pulse
• Clock Enable (EN)  :  Enables/Disables counting
  3-7, 9-11 (Q0 – Q9)  :  10 decoded outputs
• Carry Out (COUT)  :  Used for cascading multiple counters
• Reset (RST)  :  Resets count to zero
• VCC  :  Power supply (3V – 15V)