CD4050 belongs to 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4050 has Hex/Buffer/Converter (N-inverting)
CD4050 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.

CD4050 Features
- Wide supply voltage range: 3.0V to 15V
- Direct drive to 2 TTL loads at 5.0V over full temperature range
- High source and sink current capability
- Special input protection permits input voltages greater than VDD
CD4050 Specifications
Absolute Maximum Ratings
- DC Supply Voltage Range, (VDD): -0.5V to +18V
- Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
- DC Input Current, Any One Input: ±10mA
- Power Dissipation (PD)
- Dual-In-Line 700 mW
- Small Outline 500 mW
- Storage Temperature Range (TSTG): -65oC to +150oC
- Lead Temperature (During Soldering): +260oC
- At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum
CD4050 Pinout Diagram

CD4050 Pin Description
Pin No | Pin Name | Description |
1 | VDD | Drain Voltage |
2 | G=A | Output Of Buffer 1 |
3 | A | Input Of Buffer 1 |
4 | H=B | Output Of Buffer 2 |
5 | B | Input Of Buffer 2 |
6 | I=C | Output Of Buffer 3 |
7 | C | Input Of Buffer 3 |
8 | VSS | Supply Voltage |
9 | D | Input Of Buffer 4 |
10 | J=D | Output Of Buffer 4 |
11 | E | Input Of Buffer 5 |
12 | K=E | Output Of Buffer 5 |
13 | NC | No Connection |
14 | F | Input Of Buffer 6 |
15 | L=F | Output Of Buffer 6 |
16 | NC | No Connection |
CD4050 Circuit
Applications
- CMOS hex inverter/buffer
- CMOS to DTL/TTL hex converter
- CMOS current “sink” or “source” driver
- CMOS HIGH-to-LOW logic level converter
CD4050 Alternative Equivalent
CD4049
Download CD4050 Hex/Buffer/Converter (N-inverting) Datasheet from the link given below.