# 74HC4053BQ

**Nexperia** · Analog Switches, Multiplexers · DHVQFN-16-EP(2.5x3.5)

74HC4053BQ from Nexperia, in a DHVQFN-16-EP(2.5x3.5). 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 | 2Y1 | bidirectional | Independent input or output for channel 2 multiplexer; selectable with 2Y0 to 2Z connection via S2 input. |
| 2 | 2Y0 | bidirectional | Independent input or output for channel 2 multiplexer; selectable with 2Y1 to 2Z connection via S2 input. |
| 3 | 3Y1 | bidirectional | Independent input or output for channel 3 multiplexer; selectable with 3Y0 to 3Z connection via S3 input. |
| 4 | 3Z | bidirectional | Common input or output for channel 3 multiplexer; connects to selected 3Y input via S3. |
| 5 | 3Y0 | bidirectional | Independent input or output for channel 3 multiplexer; selectable with 3Y1 to 3Z connection via S3 input. |
| 6 | E | input | Enable input (active LOW); when HIGH disables all switches, when LOW enables multiplexer function via select inputs. |
| 7 | VEE | power_in | Supply voltage; provides negative supply or reference voltage for analog and digital circuit operation. |
| 8 | GND | power_in | Ground supply voltage; reference for digital logic and analog signal paths. |
| 9 | S3 | input | Select input for channel 3; when LOW selects 3Y0 to 3Z connection, when HIGH selects 3Y1 to 3Z when E is LOW. |
| 10 | S2 | input | Select input for channel 2; when LOW selects 2Y0 to 2Z connection, when HIGH selects 2Y1 to 2Z when E is LOW. |
| 11 | S1 | input | Select input for channel 1; when LOW selects 1Y0 to 1Z connection, when HIGH selects 1Y1 to 1Z when E is LOW. |
| 12 | 1Y0 | bidirectional | Independent input or output for channel 1 multiplexer; selectable with 1Y1 to 1Z connection via S1 input. |
| 13 | 1Y1 | bidirectional | Independent input or output for channel 1 multiplexer; selectable with 1Y0 to 1Z connection via S1 input. |
| 14 | 1Z | bidirectional | Common input or output for channel 1 multiplexer; connects to selected 1Y input via S1. |
| 15 | 2Z | bidirectional | Common input or output for channel 2 multiplexer; connects to selected 2Y input via S2. |
| 16 | VCC | power_in | Supply voltage; typical operating range 2.0 V to 10.0 V, provides power for logic and analog switch functions. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | DHVQFN-16-EP(2.5x3.5) |
| Category | Interface |
| Pins | 17 |

## CAD (KiCad official)

- Symbol: `74HC4053BQ`
- Footprint: `Package_DFN_QFN:DHVQFN-16-1EP_2.5x3.5mm_P0.5mm_EP1x2mm`
- 3D model: DHVQFN-16-EP(2.5x3.5), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal VQFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `74hc4053bq-etched.step` / `74hc4053bq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `74hc4053bq.step` / `74hc4053bq.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913932119916544) (27 pp, sha256 `2dd05bcd3aafe141`, retrieved 2026-10-01, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/74hc4053bq-datasheet.pdf)