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मूल्य सूची: Retail Price (B2C) Pimpri मूल्य सूची
मूल्य सूची: Retail Price (B2C) Pimpri मूल्य सूची
CD4017BE CMOS Decade Counter IC

CD4017BE CMOS Decade Counter IC

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SpecificationDetails
Logic FamilyCD4000 (CMOS)
Logic TypeDecade Counter / Divider
Number of Outputs10 (Decoded)
Operating Voltage3V to 18V DC
Clock Frequency5 MHz (at 10V)
Package Type2 Rows x 8 Columns (DIP-16)
Price
₹ 16.95 ₹ 16.95
(Tax included)

बारकोड: 10941

Product Description

The CD4017BE is a high-speed CMOS 5-stage Johnson counter with 10 decoded outputs and a carry-out bit. This versatile Integrated Circuit is designed to "count" incoming clock pulses and sequentially turn on one of its ten outputs. Only one output is HIGH at any given time, creating a "chasing" effect that is a staple in LED sequence flasher circuits, binary-to-decimal decoders, and frequency dividers. Unlike TTL counters, the CD4017 operates over a wide voltage range (up to 18V), making it exceptionally robust for automotive electronics, industrial timers, and battery-powered hobbyist projects.

Key Features

  • 10 Decoded Outputs: Provides a direct interface for up to 10 LEDs or transistors without needing external decoding logic.

  • Fully Static Operation: Holds the current count indefinitely as long as power is supplied, even if the clock signal stops.

  • Wide Supply Voltage: Operates reliably from 3V to 18V, allowing it to be powered by anything from a Lithium cell to a 12V lead-acid battery.

  • High Noise Immunity: As a CMOS device, it features excellent resistance to external electrical interference.

  • Carry-Out Signal: Includes a "Carry" pin to easily cascade multiple CD4017 ICs for counting to 100, 1000, or beyond.

Technical Details

  • Propagation Delay: ~325ns (at 5V).

  • Operating Temperature: -55°C to +125°C.

  • Pin Configuration: Pin 16 (VDD), Pin 8 (VSS/GND), Pin 14 (Clock Input).

Prototyping and Engineering Tips from Robogears

  • The "Floating" Input Trap: CRITICAL: CMOS inputs are extremely sensitive. Never leave the Reset (Pin 15) or Clock Inhibit (Pin 13) pins floating. If they are not being used, tie them to Ground (GND). A floating Reset pin will cause the counter to randomly reset or stay stuck at zero.

  • Clock Debouncing: If you are using a mechanical push-button as a clock source, the IC will "see" dozens of pulses due to contact bounce, making the count skip unpredictably. Always use a Schmidt Trigger or a 555 Timer in monostable mode to provide a clean clock signal.

  • Resetting Early: You can make the IC count to a number less than 10 (e.g., a 1-to-4 chaser). Simply connect the next sequential output (e.g., Pin 10 for Output 4) to the Reset (Pin 15). The moment the count reaches 4, it will instantly reset to 0.

  • Cascading Tip: To count higher than 10, connect the Carry Out (Pin 12) of the first CD4017 to the Clock (Pin 14) of the second IC. The second IC will increment once for every full rotation of the first.

  • LED Protection: When driving LEDs directly from the outputs, use a current-limiting resistor (typically 220Ω to 1kΩ). While the CD4017 can drive small LEDs, for high-power loads, use a transistor like the S8050 as a switch.

Package Includes

  • 1 x CD4017BE CMOS Decade Counter IC (DIP-16)

Disclaimer: Product images are shown for illustrative purposes only. The exact color of the knobs or the branding placement on the chassis may vary slightly between manufacturing batches, but all technical specifications and the performance standards remain as described. This disclaimer also applies to any included accessories such as nozzles and stands.

Safety Warning: Ensure your power supply does not exceed 18V, as CMOS structures are susceptible to over-voltage failure. Use a 0.1µF decoupling capacitor between VDD and VSS to prevent logic glitches caused by power supply noise. Always check the orientation notch to identify Pin 1 before insertion.