# CD74HC4316PWR

**Texas Instruments** · Analog Switches, Multiplexers · TSSOP-16

CD74HC4316PWR from Texas Instruments, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1Z | bidirectional | Analog input/output for Switch 1; signal voltage range from VEE to VCC. |
| 2 | 1Y | bidirectional | Analog input/output for Switch 1; signal voltage range from VEE to VCC. |
| 3 | 2Y | bidirectional | Analog input/output for Switch 2; signal voltage range from VEE to VCC. |
| 4 | 2Z | bidirectional | Analog input/output for Switch 2; signal voltage range from VEE to VCC. |
| 5 | 2S | input | Select control input for Switch 2; switch turns ON when HIGH and Enable is LOW. |
| 6 | 3S | input | Select control input for Switch 3; switch turns ON when HIGH and Enable is LOW. |
| 7 | E | input | Enable pin; active LOW to enable switch selection, HIGH disables all switches. |
| 8 | GND | power_in | Ground reference pin. |
| 9 | VEE | power_in | Negative supply/reference voltage pin; provides lower limit for analog signal range. |
| 10 | 3Z | bidirectional | Analog input/output for Switch 3; signal voltage range from VEE to VCC. |
| 11 | 3Y | bidirectional | Analog input/output for Switch 3; signal voltage range from VEE to VCC. |
| 12 | 4Y | bidirectional | Analog input/output for Switch 4; signal voltage range from VEE to VCC. |
| 13 | 4Z | bidirectional | Analog input/output for Switch 4; signal voltage range from VEE to VCC. |
| 14 | 4S | input | Select control input for Switch 4; switch turns ON when HIGH and Enable is LOW. |
| 15 | 1S | input | Select control input for Switch 1; switch turns ON when HIGH and Enable is LOW. |
| 16 | VCC | power_in | Positive supply voltage pin; provides upper limit for analog signal range. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Interface |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `CD74HC4316PWR`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `cd74hc4316pwr-etched.step` / `cd74hc4316pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74hc4316pwr.step` / `cd74hc4316pwr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/cd74hc4316.pdf) (34 pp, sha256 `0b519a6960d99e8e`, retrieved 2026-09-23, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/cd74hc4316pwr-datasheet.pdf)