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4051g-p16-r
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UTC Unisonic Tech Analog Switches / Multiplexers, TSSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdown4051G-P16-R
UTC Unisonic Tech · Analog Switches / Multiplexers · TSSOP-16
4051G-P16-R from UTC Unisonic Tech, 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 | X4 | bidirectional | Independent analog switch I/O channel 4. Selected when INH=0 and C,B,A = 1,0,0. Signal range VEE ≤ VI/O ≤ VDD, RON ≈ 80-250 Ω depending on supply. |
| 2 | X6 | bidirectional | Independent analog switch I/O channel 6. Selected when INH=0 and C,B,A = 1,1,0. Signal range VEE ≤ VI/O ≤ VDD. |
| 3 | X | bidirectional | Common analog input/output pin - the shared pole of the SP8T switch. Routes to whichever X0-X7 channel is selected by A/B/C when INH is low. |
| 4 | X7 | bidirectional | Independent analog switch I/O channel 7. Selected when INH=0 and C,B,A = 1,1,1. Signal range VEE ≤ VI/O ≤ VDD. |
| 5 | X5 | bidirectional | Independent analog switch I/O channel 5. Selected when INH=0 and C,B,A = 1,0,1. Signal range VEE ≤ VI/O ≤ VDD. |
| 6 | INH | input | Inhibit input (active high, referenced to VSS). When INH=1 all channels are OFF (high impedance); when INH=0 the channel addressed by C,B,A is enabled. VIH ≥ 3.5 V @ VDD=5 V. |
| 7 | VEE | power_in | Negative analog supply for the switch I/O. VEE must be ≤ VSS. VDD-VEE operating range 3 V to 18 V, allowing bipolar analog signals. |
| 8 | VSS | power_in | Digital ground / control-input reference. Control inputs A, B, C, INH are referenced to VSS. Typically tied to VEE for single-supply operation. |
| 9 | C | input | Binary channel-select input C (MSB of the 3-bit address). Together with B and A selects one of X0-X7 when INH=0. Referenced to VSS. |
| 10 | B | input | Binary channel-select input B. Combined with A and C to address X0-X7. Referenced to VSS. |
| 11 | A | input | Binary channel-select input A (LSB of the 3-bit address). Referenced to VSS. VIH ≥ 3.5 V @ VDD=5 V; VIL ≤ 1.5 V. |
| 12 | X3 | bidirectional | Independent analog switch I/O channel 3. Selected when INH=0 and C,B,A = 0,1,1. Signal range VEE ≤ VI/O ≤ VDD. |
| 13 | X0 | bidirectional | Independent analog switch I/O channel 0. Selected when INH=0 and C,B,A = 0,0,0. Signal range VEE ≤ VI/O ≤ VDD. |
| 14 | X1 | bidirectional | Independent analog switch I/O channel 1. Selected when INH=0 and C,B,A = 0,0,1. Signal range VEE ≤ VI/O ≤ VDD. |
| 15 | X2 | bidirectional | Independent analog switch I/O channel 2. Selected when INH=0 and C,B,A = 0,1,0. Signal range VEE ≤ VI/O ≤ VDD. |
| 16 | VDD | power_in | Positive supply. Absolute max VDD-VEE = 18 V; recommended operating range 3-18 V. All switch I/O signals must remain within VEE to VDD. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | TSSOP-16 |
| Category | Comm/UART |
| Pins | 16 |
Ordering variants
4051G-P16-R4051G-P16-R4051GR-P16-R14051G-P16-R4051G-S16-R4051G-P16-R4051L-D16-T4051G-P16-R4051G-D16-T
CAD (KiCad official)
- Symbol:
4051G-P16-R - 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: UTC Unisonic Tech datasheet (None pp, sha256
c6ec1d1b40af73a6, retrieved 2026-08-17, tier: lcsc) - 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).