74VHC4052AFT

@@ -0,0 +1,55 @@+# 74VHC4052AFT++**TOSHIBA** · Analog Switches, Multiplexers · TSSOP-16-175mil++74VHC4052AFT 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 | 0Y | bidirectional | Y-bank channel 0 analog switch I/O. Bidirectional analog signal port; connected to Y-COM when A=L, B=L and INH=L. Vs range 0 to Vcc; typical Ron 24 Ω at Vcc = 4.5 V. |+| 2 | 2Y | bidirectional | Y-bank channel 2 analog switch I/O. Selected when A=L, B=H and INH=L. Vs range 0 to Vcc. |+| 3 | Y-COM | bidirectional | Common (pole) terminal of the Y-bank 4:1 analog switch. Connects to one of 0Y..3Y as selected by A/B when INH=L; high-impedance to all when INH=H. |+| 4 | 3Y | bidirectional | Y-bank channel 3 analog switch I/O. Selected when A=H, B=H and INH=L. Vs range 0 to Vcc. |+| 5 | 1Y | bidirectional | Y-bank channel 1 analog switch I/O. Selected when A=H, B=L and INH=L. Vs range 0 to Vcc. |+| 6 | INH | input | Active-high inhibit / enable input. INH=H disables both banks (all channels OFF, COM pins float); INH=L allows A/B to select one of the four channels per bank. Digital CMOS input; VIH ≥ 2.0 V at Vcc = 3.0 V. |+| 7 | GND | power_in | Ground / 0 V reference. Tie to system ground; must be the most-negative voltage seen by any analog switch signal. |+| 8 | GND | power_in | Ground / 0 V reference (second GND pin). Both GND pins should be tied together to the system ground plane. |+| 9 | B | input | Channel-select input B (MSB of the 2-bit channel address, shared across both X and Y banks). Digital CMOS input; VIH ≥ 2.0 V at Vcc = 3.0 V. Note: the 74VHC4052 uses only A and B (no C select). |+| 10 | A | input | Channel-select input A (LSB of the 2-bit channel address, shared across both X and Y banks). Digital CMOS input; VIH ≥ 2.0 V at Vcc = 3.0 V. |+| 11 | 3X | bidirectional | X-bank channel 3 analog switch I/O. Selected when A=H, B=H and INH=L. Vs range 0 to Vcc. |+| 12 | 0X | bidirectional | X-bank channel 0 analog switch I/O. Selected when A=L, B=L and INH=L. Vs range 0 to Vcc. |+| 13 | X-COM | bidirectional | Common (pole) terminal of the X-bank 4:1 analog switch. Connects to one of 0X..3X as selected by A/B when INH=L; high-impedance when INH=H. |+| 14 | 1X | bidirectional | X-bank channel 1 analog switch I/O. Selected when A=H, B=L and INH=L. Vs range 0 to Vcc. |+| 15 | 2X | bidirectional | X-bank channel 2 analog switch I/O. Selected when A=L, B=H and INH=L. Vs range 0 to Vcc. |+| 16 | VCC | power_in | Positive supply voltage. Operating range 2.0 V to 5.5 V (absolute max 7.0 V). Sets the upper rail of the analog switch signal range and the digital control input thresholds. Decouple to GND with 0.1 μF close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | TOSHIBA |+| Package | TSSOP-16-175mil |+| Category | Interface |+| Pins | 16 |++## Ordering variants++- `74VHC4052AFTAFT`++## CAD (KiCad official)++- Symbol: `74VHC4052AFT`+- 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](docs/74vhc4052aft-datasheet.pdf) (15 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).++[Datasheet PDF](docs/74vhc4052aft-datasheet.pdf)

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