The 4000-series Integrated Circuits (IC) is a classic series of CMOS chips. It has a bunch of useful basic features such as logic gates, 7-segment decoders, counters, and more.
Below you’ll find a non-exhaustive list of the most common 4000-series chips. Click on the IC number of a chip to learn more about its pins, functions and example circuits.
More ICs will be added. If you have a request, let me know in the comments!
| IC # | Pinout | Description |
|---|---|---|
| 4001 |  | Quad 2-input NOR gate: An IC with four standard NOR gates. |
| 4008 |  | 4-bit Binary Full Adder: An IC for adding two 4-bit binary numbers. |
| 4011 |  | Quad 2-input NAND gate: An IC with four standard NAND gates. |
| 4013 |  | Dual D-type flip-flop: An IC with two D Flip-Flops. |
| 4017 |  | 5-stage Johnson Decade Counter: A decade counter with ten outputs. Each output represents a number, 0 to 9, and goes HIGH when the counter reaches it. |
| 4060 |  | 14-stage ripple-carry binary counter/divider and oscillator: A binary counter with oscillator integrated. Add two resistors and a capacitor to create various time delays or frequencies. |
| 4071 |  | Quad 2-input OR gate: An IC with four standard OR gates. |
| 4081 |  | Quad 2-input AND gate: An IC with four standard AND gates. |
| 4510 |  | Up/Down BCD Counter With Preset Function: This is a BCD counter that can count up or down between 0 and 9. |
| 4511 |  | BCD to 7-segment latch/decoder/driver: A BCD to 7-segment decoder. This IC converts binary-coded decimals to a seven-segment display. |
Thanks to Inductiveload who made the pinout drawings that I used as the starting point for the pinouts on this page. Check out the 4000 Series Overview on Wikimedia for their original work.
Good to know about the 4000 series:
- The output pins usually only support a few milliamps of sink or source current.
- Lots of manufacturers have made these throughout time, so you’ll usually find the chip number with a prefix such as CD4xxx, HEF4xxx, or NTE4xxx.
- All unused inputs (even from unused gates) should always be connected to either GND or VCC to avoid unnecessary current consumption.
- Most chips support a voltage supply of between 3V and 15V. Some versions support up to 20V.
Jemuell Sartagoda says
Thanks for..I want to learn more basic circuits..
randy413 says
The cd4049ube has made a big impression in the guitar arena. Google Craig Anderton tube sound fuzz pedal for more info. I have built one before and often wondered “what if I added another inverter stage?” Haven’t tried that yet
admin says
Thanks for the tip! Will definitely check it out.
Oyvind
Mario Brunet says
Hi Oyvind, good stuff, thanks. Yes, may I suggest to add the 4056 (charger) and 4558 (op-amp) ?
admin says
Hi Mario, thanks! Those two suggestions are actually not part of the 4000-series, although their names suggest they are. In the 4000-series, the 4056 and 4558 chips are both BCD to 7-segment decoders. A full list of the ICs that are in this series can be found on Wikipedia: https://en.wikipedia.org/wiki/List_of_4000-series_integrated_circuits
Anyway, I’m happy to discuss those chips you suggested anytime in the Ohmify forum!