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. These are great building blocks for digital electronics. This series is an alternative to the 7400 series which has a lot of the same functionality.
Below you’ll find a 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. Also, check out the 1983 RCA databook for more info about missing chips below.
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. |
| 4014 |  | 8-stage parallel-in shift register: An 8-bit shift-register with parallel inputs. Great for creating a parallel-to-serial converter. |
| 4015 |  | Dual 4-bit static shift register: This chip contains two 4-bit shift registers with serial input and parallel output pins. Great for adding more output pins to a microcontroller or Arduino. |
| 4016 |  | Quad bilateral switch: An IC with four bidirectional, analog switches which can be controlled individually using a control pin. The signal can flow in either direction between the two pins of each switch. |
| 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. |
| 4023 |  | Triple 3-input NAND gate: An IC with three 3-input NAND gates. |
| 4025 |  | Triple 3-input NOR gate: An IC with three 3-input NOR gates. |
| 4030 |  | Quad 2-input XOR gate: An IC with four standard XOR gates. |
| 4049 |  | Hex Inverting Buffer and Converter: An IC with six inverters with high sink current that can be used for high-to-low level shifting. |
| 4050 |  | Hex Buffer and Converter: An IC with six buffers with high sink current that can be used for high-to-low level shifting. |
| 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. |
| 4069 |  | Hex Inverter: An IC with six inverters/NOT gates. It's often used for pulse-shaping, high-input impedance amplifiers, oscillators, or logic circuits. |
| 4070 |  | Quad 2-input XOR gate: An IC with four standard XOR gates. |
| 4071 |  | Quad 2-input OR gate: An IC with four standard OR gates. |
| 4073 |  | Triple 3-input AND gate: An IC with three 3-input AND gates. |
| 4075 |  | Triple 3-input OR gate: An IC with three 3-input OR gates. |
| 4077 |  | Quad 2-input XNOR gate: An IC with four standard XNOR gates. |
| 4081 |  | Quad 2-input AND gate: An IC with four standard AND gates. |
| 4093 |  | Quad 2-input NAND Schmitt Trigger gate: An IC with four Schmitt Trigger NAND 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. |
| 40106 |  | Hex Schmitt-Trigger Inverter: An IC with six Schmitt Trigger inverters that can be used to create oscillators for blinking LEDs, creating sound, and much more. |
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 might consume current (even for unused gates), so connect them all to either GND or VCC if you want to avoid unnecessary current consumption.
- Most chips support a voltage supply of between 3V and 15V. Some versions support up to 20V.
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Thanks for..I want to learn more basic circuits..
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
Thanks for the tip! Will definitely check it out.
Oyvind
Hi Oyvind, good stuff, thanks. Yes, may I suggest to add the 4056 (charger) and 4558 (op-amp) ?
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!
Any details on the CD4046BE IC???
Not at the moment, but I’ll see if I can have that made soon!
Great listing here, I have a piece of old electronics with RCA CMOS logic chips starting with the prefix 54142. NTE shows the 54142-03 as the CD4011 and the 54142-06 as the CD4013. Would you have any idea of what the 54142-01 and the 54142-04 might be? I suspect they might be the CD4001 and CD4023 respectively but perhaps you have the correct cross references or ideas for a search.
Thanks!
Hi Rick, I don’t know those unfortunately…
Logic chips with 54xx are military temp range TTL logic. Those correspond to 74xx parts in the commercial temp range.
Hello, I would like to know why you are not considering the integrated CD 4026.
Hi Oyvind,
The 4029 presettable counter chip would be good to see on here.
Keep up the great work!
Хотелось бы видеть CD4098.