# CD4051BE

**HGSEMI** · Analog Switches, Multiplexers · DIP-16

CD4051BE from HGSEMI, in a DIP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 4 | passive | Analog switch channel 4 terminal, connected to COM when addressed by A/B/C with INH low. |
| 2 | 6 | passive | Analog switch channel 6 terminal, connected to COM when addressed by A/B/C with INH low. |
| 3 | COM | bidirectional | Common channel terminal (OUT/IN); recommended analog input/output voltage is 0 to VDD-VEE V. |
| 4 | 7 | passive | Analog switch channel 7 terminal, connected to COM when addressed by A/B/C with INH low. |
| 5 | 5 | passive | Analog switch channel 5 terminal, connected to COM when addressed by A/B/C with INH low. |
| 6 | INH | input | Inhibit (enable control): when INH is high (VDD) all channels are off; when low, the channel selected by C, B, A is on. |
| 7 | VEE | power_in | Analog switch negative supply; recommended VDD-VEE is 0 to 15 V and the analog supply limit is 18 V. |
| 8 | VSS | power_in | Digital ground/reference pin; recommended VDD-VSS is 3 to 15 V and absolute maximum DC supply VDD-VSS is -0.5 to 18 V. |
| 9 | C | input | Binary channel select input, most significant address bit; logic levels per the VIH/VIL specification. |
| 10 | B | input | Binary channel select input, middle address bit; logic levels per the VIH/VIL specification. |
| 11 | A | input | Binary channel select input, least significant address bit; logic levels per the VIH/VIL specification. |
| 12 | 3 | passive | Analog switch channel 3 terminal, connected to COM when addressed by A/B/C with INH low. |
| 13 | 0 | passive | Analog switch channel 0 terminal, connected to COM when addressed by A/B/C with INH low. |
| 14 | 1 | passive | Analog switch channel 1 terminal, connected to COM when addressed by A/B/C with INH low. |
| 15 | 2 | passive | Analog switch channel 2 terminal, connected to COM when addressed by A/B/C with INH low. |
| 16 | VDD | power_in | Positive supply; recommended VDD-VSS is 3 to 15 V and absolute maximum DC supply VDD-VSS is -0.5 to 18 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | DIP-16 |
| Category | Interface |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `CD4051BE`
- Footprint: `Package_DIP:DIP-16_W7.62mm`
- 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files: `cd4051be-etched.step` / `cd4051be-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd4051be.step` / `cd4051be.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [HGSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757091282202714112) (11 pp, sha256 `2d3a59b6dffc8a29`, retrieved 2026-10-09, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/cd4051be-datasheet.pdf)