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SN74LV4051APWR
Public Unreviewedby Ray
Texas Instruments Analog Switches, Multiplexers, TSSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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Symbol & Footprint
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Datasheet
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README
markdownSN74LV4051APWR
Texas Instruments · Analog Switches, Multiplexers · TSSOP-16
SN74LV4051APWR 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 | Y4 | bidirectional | Analog switch channel 4 input/output to mux. Bidirectional switch terminal; connects to COM when A=0,B=0,C=1 and INH=low. |
| 2 | Y6 | bidirectional | Analog switch channel 6 input/output to mux. Bidirectional switch terminal; connects to COM when A=0,B=1,C=1 and INH=low. |
| 3 | COM | bidirectional | Common terminal of the mux; output when device is used as a multiplexer, input when used as a demultiplexer. Connects to the selected Yn channel. |
| 4 | Y7 | bidirectional | Analog switch channel 7 input/output to mux. Bidirectional switch terminal; connects to COM when A=1,B=1,C=1 and INH=low. |
| 5 | Y5 | bidirectional | Analog switch channel 5 input/output to mux. Bidirectional switch terminal; connects to COM when A=1,B=0,C=1 and INH=low. |
| 6 | INH | input | Inhibit / enable input. Logic-low enables all switches (device active); logic-high disables all channels, placing switches in the OFF state. |
| 7 | GND | power_in | Ground reference for logic and switch circuitry. Tie to system ground. |
| 8 | GND | power_in | Ground reference (second GND pin). Tie to system ground. |
| 9 | C | input | Selector line C (MSB of the 3-bit channel select). Together with A and B selects which Yn channel connects to COM. |
| 10 | B | input | Selector line B (middle bit of the 3-bit channel select). Together with A and C selects which Yn channel connects to COM. |
| 11 | A | input | Selector line A (LSB of the 3-bit channel select). Together with B and C selects which Yn channel connects to COM. |
| 12 | Y3 | bidirectional | Analog switch channel 3 input/output to mux. Bidirectional switch terminal; connects to COM when A=1,B=1,C=0 and INH=low. |
| 13 | Y0 | bidirectional | Analog switch channel 0 input/output to mux. Bidirectional switch terminal; connects to COM when A=0,B=0,C=0 and INH=low. |
| 14 | Y1 | bidirectional | Analog switch channel 1 input/output to mux. Bidirectional switch terminal; connects to COM when A=1,B=0,C=0 and INH=low. |
| 15 | Y2 | bidirectional | Analog switch channel 2 input/output to mux. Bidirectional switch terminal; connects to COM when A=0,B=1,C=0 and INH=low. |
| 16 | VCC | power_in | Device power supply, 1.65 V to 5.5 V. Bypass with a ceramic capacitor to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Interface |
| Pins | 16 |
Ordering variants
Same part, different packaging or reel option.
SN74LV4051APWRSN74LV4051APWRDRSN74LV4051APWRDSN74LV4051APWRDYYRSN74LV4051APWRDYYSN74LV4051APWRRGYRSN74LV4051APWRRGY
CAD (KiCad official)
- Symbol:
SN74LV4051APWR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (41 pp, sha256
2e2adcd3b48ee2ed, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).