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U74HC4051G-S16-R

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by Ray

UTC Unisonic Tech Analog Switches, Multiplexers, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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U74HC4051G-S16-R

UTC Unisonic Tech · Analog Switches, Multiplexers · SOIC-16

U74HC4051G-S16-R from UTC Unisonic Tech, in a SOIC-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 channel 4 input/output. Connected to common Z pin when S2=H, S1=L, S0=L and E=L. Signal voltage may swing between VEE and VCC.
2 Y6 bidirectional Analog channel 6 input/output. Connected to common Z pin when S2=H, S1=H, S0=L and E=L. Signal voltage may swing between VEE and VCC.
3 Z bidirectional Common analog input/output (multiplexer common terminal). Connects to the selected Yn channel per the S2/S1/S0 select code when E is low.
4 Y7 bidirectional Analog channel 7 input/output. Connected to common Z pin when S2=H, S1=H, S0=H and E=L. Signal voltage may swing between VEE and VCC.
5 Y5 bidirectional Analog channel 5 input/output. Connected to common Z pin when S2=H, S1=L, S0=H and E=L. Signal voltage may swing between VEE and VCC.
6 E input Active-low enable input (E-bar). When low, the selected channel is connected to Z; when high, all channels are disconnected (high impedance).
7 VEE power_in Negative analog supply voltage. Typically 0V for single-supply digital use, or negative (e.g. -5V) to allow bipolar analog signals. VCC-VEE range 2.0V to 10.0V.
8 GND power_in Digital ground / logic reference for the S0/S1/S2 and E select inputs. VCC-GND recommended range 2.0V to 10.0V.
9 S2 input Digital channel-select input (MSB). Combined with S1 and S0, selects one of eight Y0-Y7 channels to connect to Z.
10 S1 input Digital channel-select input. Combined with S2 and S0, selects one of eight Y0-Y7 channels to connect to Z.
11 S0 input Digital channel-select input (LSB). Combined with S2 and S1, selects one of eight Y0-Y7 channels to connect to Z.
12 Y3 bidirectional Analog channel 3 input/output. Connected to common Z pin when S2=L, S1=H, S0=H and E=L. Signal voltage may swing between VEE and VCC.
13 Y0 bidirectional Analog channel 0 input/output. Connected to common Z pin when S2=L, S1=L, S0=L and E=L. Signal voltage may swing between VEE and VCC.
14 Y1 bidirectional Analog channel 1 input/output. Connected to common Z pin when S2=L, S1=L, S0=H and E=L. Signal voltage may swing between VEE and VCC.
15 Y2 bidirectional Analog channel 2 input/output. Connected to common Z pin when S2=L, S1=H, S0=L and E=L. Signal voltage may swing between VEE and VCC.
16 VCC power_in Positive digital/analog supply voltage. Absolute maximum -0.5V to +11.0V; recommended VCC-GND and VCC-VEE ranges 2.0V to 10.0V.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package SOIC-16
Category Interface
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • U74HC4051G-S16-R
  • U74HC4051G-S16-T
  • U74HC4051G-S16-RL-D16-T
  • U74HC4051G-S16-RG-D16-T
  • U74HC4051G-S16-RG-P16-T
  • U74HC4051G-S16-RG-P16-R
  • U74HC4051G-S16-RG-Q16-3030-R

CAD (KiCad official)

  • Symbol: U74HC4051G-S16-R
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (9 pp, sha256 12893df6b8c478bb, 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).

Datasheet PDF