# SN74LV4051ATPWREP

**Texas Instruments** · Analog Switches, Multiplexers · TSSOP-16-175mil

SN74LV4051ATPWREP from Texas Instruments, in a TSSOP-16-175mil. 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 | Y4 | passive | Analog switch channel 4 terminal; signals up to 5.5 V (peak) can pass in either direction, with switch I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 2 | Y6 | passive | Analog switch channel 6 terminal; signals up to 5.5 V (peak) can pass in either direction, with switch I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 3 | COM | passive | Common analog switch terminal that connects to the one channel Yn selected by A, B and C; I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 4 | Y7 | passive | Analog switch channel 7 terminal; signals up to 5.5 V (peak) can pass in either direction, with switch I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 5 | Y5 | passive | Analog switch channel 5 terminal; signals up to 5.5 V (peak) can pass in either direction, with switch I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 6 | INH | input | Active-high inhibit control: when high (VIH) all channels are off and no channel is selected; control input range is 0 to 5.5 V. |
| 7 | GND | power_in | Ground reference pin; all unused inputs must be held at VCC or GND for proper operation. |
| 8 | GND | power_in | Ground reference pin (second GND pin); all unused inputs must be held at VCC or GND for proper operation. |
| 9 | C | input | Binary channel-select input (most significant bit of the channel address); control input range is 0 to 5.5 V. |
| 10 | B | input | Binary channel-select input (middle bit of the channel address); control input range is 0 to 5.5 V. |
| 11 | A | input | Binary channel-select input (least significant bit of the channel address); control input range is 0 to 5.5 V. |
| 12 | Y3 | passive | Analog switch channel 3 terminal; signals up to 5.5 V (peak) can pass in either direction, with switch I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 13 | Y0 | passive | Analog switch channel 0 terminal; signals up to 5.5 V (peak) can pass in either direction, with switch I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 14 | Y1 | passive | Analog switch channel 1 terminal; signals up to 5.5 V (peak) can pass in either direction, with switch I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 15 | Y2 | passive | Analog switch channel 2 terminal; signals up to 5.5 V (peak) can pass in either direction, with switch I/O limited to −0.5 V to VCC + 0.5 V (5.5 V max). |
| 16 | VCC | power_in | Positive supply pin; recommended operation is 2 V to 5.5 V, and absolute maximum is 7.0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16-175mil |
| Category | Interface |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `SN74LV4051ATPWREP`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16-175mil (KiCad packages3D, STEP)
- 3D model files: `sn74lv4051atpwrep-etched.step` / `sn74lv4051atpwrep-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lv4051atpwrep.step` / `sn74lv4051atpwrep.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/cn/lit/gpn/sn74lv4051a-ep) (18 pp, sha256 `e0d1dea88834f97c`, retrieved 2026-10-08, tier: lcsc)
- **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/sn74lv4051atpwrep-datasheet.pdf)