component
74VHC245PW
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Nexperia Buffer/Driver/Transceiver, TSSOP-20. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+63@@ -0,0 +1,63 @@+# 74VHC245PW++**Nexperia** · Buffer/Driver/Transceiver · TSSOP-20++74VHC245PW from Nexperia, in a TSSOP-20. 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 | DIR | input | Direction control input. When DIR=LOW, data flows from Bn to An; when DIR=HIGH, data flows from An to Bn (with OE=LOW). Schmitt-trigger input; accepts voltages higher than VCC. |+| 2 | A0 | bidirectional | Data input/output, bus A bit 0. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 3 | A1 | bidirectional | Data input/output, bus A bit 1. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 4 | A2 | bidirectional | Data input/output, bus A bit 2. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 5 | A3 | bidirectional | Data input/output, bus A bit 3. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 6 | A4 | bidirectional | Data input/output, bus A bit 4. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 7 | A5 | bidirectional | Data input/output, bus A bit 5. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 8 | A6 | bidirectional | Data input/output, bus A bit 6. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 9 | A7 | bidirectional | Data input/output, bus A bit 7. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 10 | GND | power_in | Ground reference, 0 V. |+| 11 | B7 | bidirectional | Data input/output, bus B bit 7. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 12 | B6 | bidirectional | Data input/output, bus B bit 6. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 13 | B5 | bidirectional | Data input/output, bus B bit 5. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 14 | B4 | bidirectional | Data input/output, bus B bit 4. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 15 | B3 | bidirectional | Data input/output, bus B bit 3. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 16 | B2 | bidirectional | Data input/output, bus B bit 2. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 17 | B1 | bidirectional | Data input/output, bus B bit 1. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 18 | B0 | bidirectional | Data input/output, bus B bit 0. Direction is controlled by DIR; outputs 3-state when OE is HIGH. |+| 19 | OE | input | Output enable input, active LOW. When HIGH, both A and B outputs are placed in high-impedance (3-state) OFF-state, effectively isolating the buses. |+| 20 | VCC | power_in | Supply voltage. Operating range 2.0 V to 5.5 V for 74VHC245; absolute max +7.0 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Nexperia |+| Package | TSSOP-20 |+| Category | Logic |+| Pins | 20 |++## Ordering variants++Same part, different packaging or reel option.++- `74VHC245PW`+- `74VHC245PWD`+- `74VHC245PWBQ`++## CAD (KiCad official)++- Symbol: `74VHC245PW`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Nexperia datasheet](https://assets.nexperia.com/documents/data-sheet/74VHC245PW.pdf) (16 pp, sha256 `cffe9d1b2f02d399`, 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/74vhc245pw-datasheet.pdf)
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