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74vhc4051aft
Public Unreviewedby Ray
TOSHIBA Analog Switches, Multiplexers, TSSOP-16-175mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdown74VHC4051AFT
TOSHIBA · Analog Switches, Multiplexers · TSSOP-16-175mil
74VHC4051AFT from TOSHIBA, in a TSSOP-16-175mil. 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 | A4 | bidirectional | Analog channel 4 switch terminal. Bidirectional analog I/O; connected to common Z when select A/B/C = 100 and Inhibit is low. Signal range 0 to VCC, RON ≈ 24 Ω @ VCC=4.5 V. |
| 2 | A6 | bidirectional | Analog channel 6 switch terminal. Bidirectional analog I/O; connected to common Z when select A/B/C = 110 and Inhibit is low. |
| 3 | Z | bidirectional | Common (COM) switch terminal. Bidirectional analog I/O that is routed to one of the eight A0..A7 channels according to select bits A/B/C when Inhibit is low. |
| 4 | A7 | bidirectional | Analog channel 7 switch terminal. Bidirectional analog I/O; connected to common Z when select A/B/C = 111 and Inhibit is low. |
| 5 | A5 | bidirectional | Analog channel 5 switch terminal. Bidirectional analog I/O; connected to common Z when select A/B/C = 101 and Inhibit is low. |
| 6 | INH | input | Inhibit (active-high disable). When INH = H, all channel switches are OFF and Z is isolated from A0..A7; when INH = L the multiplexer is enabled and select bits A/B/C route one channel to Z. VIH ≥ 2.0 V @ VCC = 3.0 V. |
| 7 | VEE | power_in | Negative analog supply reference for the switch cells. In this single-supply 74VHC variant VEE is typically tied to GND; for bipolar analog swings between VEE and VCC it may be biased below GND, subject to VCC-VEE ≤ absolute-max rating. |
| 8 | GND | power_in | Ground / negative logic supply reference (0 V). All digital signal levels and switch RON are referenced to this pin. |
| 9 | C | input | Channel-select bit C (MSB of the 3-bit address). Digital CMOS input; together with B and A selects one of A0..A7 to connect to Z when INH is low. VIL ≤ 0.8 V, VIH ≥ 2.0 V @ VCC = 3.0 V. |
| 10 | B | input | Channel-select bit B (middle bit of the 3-bit address). Digital CMOS input; combined with A and C forms channel number 0..7. VIL ≤ 0.8 V, VIH ≥ 2.0 V @ VCC = 3.0 V. |
| 11 | A | input | Channel-select bit A (LSB of the 3-bit address). Digital CMOS input; combined with B and C forms channel number 0..7. VIL ≤ 0.8 V, VIH ≥ 2.0 V @ VCC = 3.0 V. |
| 12 | A3 | bidirectional | Analog channel 3 switch terminal. Bidirectional analog I/O; connected to common Z when select A/B/C = 011 and Inhibit is low. |
| 13 | A0 | bidirectional | Analog channel 0 switch terminal. Bidirectional analog I/O; connected to common Z when select A/B/C = 000 and Inhibit is low. |
| 14 | A1 | bidirectional | Analog channel 1 switch terminal. Bidirectional analog I/O; connected to common Z when select A/B/C = 001 and Inhibit is low. |
| 15 | A2 | bidirectional | Analog channel 2 switch terminal. Bidirectional analog I/O; connected to common Z when select A/B/C = 010 and Inhibit is low. |
| 16 | VCC | power_in | Positive supply input, 2.0 V to 5.5 V operating range (absolute max 7.0 V). Sets the digital logic thresholds and the upper bound of the analog switch signal range. ICC ≤ 2 µA @ 25 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | TSSOP-16-175mil |
| Category | Interface |
| Pins | 16 |
Ordering variants
74VHC4051AFT
CAD (KiCad official)
- Symbol:
74VHC4051AFT - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16-175mil (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (None pp, sha256
d9a936f777a9cff6, 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).