74LVC541APW

@@ -0,0 +1,63 @@+# 74LVC541APW++**Nexperia** · Buffer/Driver/Transceiver · TSSOP-20++74LVC541APW 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 | OE1 | input | Output enable input 1 (active LOW). When OE1 is LOW and OE2 is LOW, the Yn outputs follow the An inputs; a HIGH on OE1 forces all Yn outputs to high-impedance 3-state. |+| 2 | A0 | input | Data input bit 0 to buffer channel 0. 5 V tolerant Schmitt-trigger CMOS input; drives output Y0 when the device is enabled. |+| 3 | A1 | input | Data input bit 1 to buffer channel 1. 5 V tolerant Schmitt-trigger CMOS input; drives output Y1 when the device is enabled. |+| 4 | A2 | input | Data input bit 2 to buffer channel 2. 5 V tolerant Schmitt-trigger CMOS input; drives output Y2 when the device is enabled. |+| 5 | A3 | input | Data input bit 3 to buffer channel 3. 5 V tolerant Schmitt-trigger CMOS input; drives output Y3 when the device is enabled. |+| 6 | A4 | input | Data input bit 4 to buffer channel 4. 5 V tolerant Schmitt-trigger CMOS input; drives output Y4 when the device is enabled. |+| 7 | A5 | input | Data input bit 5 to buffer channel 5. 5 V tolerant Schmitt-trigger CMOS input; drives output Y5 when the device is enabled. |+| 8 | A6 | input | Data input bit 6 to buffer channel 6. 5 V tolerant Schmitt-trigger CMOS input; drives output Y6 when the device is enabled. |+| 9 | A7 | input | Data input bit 7 to buffer channel 7. 5 V tolerant Schmitt-trigger CMOS input; drives output Y7 when the device is enabled. |+| 10 | GND | power_in | Ground reference (0 V). Common return for supply and logic signals. |+| 11 | Y7 | tri_state | Bus output bit 7 from buffer channel 7. 3-state CMOS output; drives up to ±24 mA at VCC = 3.0 V, high-impedance when OE1 or OE2 is HIGH. |+| 12 | Y6 | tri_state | Bus output bit 6 from buffer channel 6. 3-state CMOS output; drives up to ±24 mA at VCC = 3.0 V, high-impedance when OE1 or OE2 is HIGH. |+| 13 | Y5 | tri_state | Bus output bit 5 from buffer channel 5. 3-state CMOS output; drives up to ±24 mA at VCC = 3.0 V, high-impedance when OE1 or OE2 is HIGH. |+| 14 | Y4 | tri_state | Bus output bit 4 from buffer channel 4. 3-state CMOS output; drives up to ±24 mA at VCC = 3.0 V, high-impedance when OE1 or OE2 is HIGH. |+| 15 | Y3 | tri_state | Bus output bit 3 from buffer channel 3. 3-state CMOS output; drives up to ±24 mA at VCC = 3.0 V, high-impedance when OE1 or OE2 is HIGH. |+| 16 | Y2 | tri_state | Bus output bit 2 from buffer channel 2. 3-state CMOS output; drives up to ±24 mA at VCC = 3.0 V, high-impedance when OE1 or OE2 is HIGH. |+| 17 | Y1 | tri_state | Bus output bit 1 from buffer channel 1. 3-state CMOS output; drives up to ±24 mA at VCC = 3.0 V, high-impedance when OE1 or OE2 is HIGH. |+| 18 | Y0 | tri_state | Bus output bit 0 from buffer channel 0. 3-state CMOS output; drives up to ±24 mA at VCC = 3.0 V, high-impedance when OE1 or OE2 is HIGH. |+| 19 | OE2 | input | Output enable input 2 (active LOW). When OE2 is LOW and OE1 is LOW, the Yn outputs follow the An inputs; a HIGH on OE2 forces all Yn outputs to high-impedance 3-state. |+| 20 | VCC | power_in | Positive supply voltage. Recommended range 1.65 V to 3.6 V (functional down to 1.2 V); absolute maximum 6.5 V. Decouple to GND close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Nexperia |+| Package | TSSOP-20 |+| Category | Logic |+| Pins | 20 |++## Ordering variants++Same part, different packaging or reel option.++- `74LVC541APW`+- `74LVC541APWD`+- `74LVC541APWBQ`++## CAD (KiCad official)++- Symbol: `74LVC541APW`+- 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/74LVC541APW.pdf) (14 pp, sha256 `33cdbbe38f7bdda9`, 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/74lvc541apw-datasheet.pdf)

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