Interactive chip reference
CD4051 DIP-16 pinout
CD4051 16-pin DIP-16 pinout. CMOS single 8-channel analog multiplexer/demultiplexer
Pin reference
| Pin | Name | Function | Group |
|---|---|---|---|
| 1 | Y3 | Channel 3 input/output | bidir |
| 2 | Y4 | Channel 4 input/output | bidir |
| 3 | Y6 | Channel 6 input/output | bidir |
| 4 | Y7 | Channel 7 input/output | bidir |
| 5 | Y5 | Channel 5 input/output | bidir |
| 6 | INH | Inhibit — disables all channels (active HIGH) | control |
| 7 | VEE | Negative supply (analog ground, –13.5V to 0V) | ground |
| 8 | VSS | Digital ground (GND) | ground |
| 9 | Z | Common input/output (mux bus) | bidir |
| 10 | Y0 | Channel 0 input/output | bidir |
| 11 | Y1 | Channel 1 input/output | bidir |
| 12 | Y2 | Channel 2 input/output | bidir |
| 13 | A | Channel select bit A (LSB) | input |
| 14 | B | Channel select bit B | input |
| 15 | C | Channel select bit C (MSB) | input |
| 16 | VDD | Positive supply voltage (3V–15V) | power |
View the interactive CD4051 package diagram and labeled pin details on WhichPin.