SN74HC541PWR

@@ -0,0 +1,65 @@+# SN74HC541PWR++**Texas Instruments** · Buffer/Driver/Transceiver · TSSOP-20++SN74HC541PWR from Texas Instruments, 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 1 (active low). Both OE1 and OE2 must be low to enable the eight Y outputs; otherwise outputs are in the high-impedance state. |+| 2 | A1 | input | Channel 1 buffer input. CMOS logic input, V_IH >= 0.7*Vcc. |+| 3 | A2 | input | Channel 2 buffer input. |+| 4 | A3 | input | Channel 3 buffer input. |+| 5 | A4 | input | Channel 4 buffer input. |+| 6 | A5 | input | Channel 5 buffer input. |+| 7 | A6 | input | Channel 6 buffer input. |+| 8 | A7 | input | Channel 7 buffer input. |+| 9 | A8 | input | Channel 8 buffer input. |+| 10 | GND | power_in | Device ground reference (0 V). |+| 11 | Y8 | tri_state | Channel 8 buffered output. 3-state; drives +/-6 mA at Vcc=5 V. Hi-Z when either OE1 or OE2 is high. |+| 12 | Y7 | tri_state | Channel 7 buffered output. 3-state; drives +/-6 mA at Vcc=5 V. |+| 13 | Y6 | tri_state | Channel 6 buffered output. 3-state; drives +/-6 mA at Vcc=5 V. |+| 14 | Y5 | tri_state | Channel 5 buffered output. 3-state; drives +/-6 mA at Vcc=5 V. |+| 15 | Y4 | tri_state | Channel 4 buffered output. 3-state; drives +/-6 mA at Vcc=5 V. |+| 16 | Y3 | tri_state | Channel 3 buffered output. 3-state; drives +/-6 mA at Vcc=5 V. |+| 17 | Y2 | tri_state | Channel 2 buffered output. 3-state; drives +/-6 mA at Vcc=5 V. |+| 18 | Y1 | tri_state | Channel 1 buffered output. 3-state; drives +/-6 mA at Vcc=5 V. |+| 19 | OE2 | input | Output enable 2 (active low). Both OE1 and OE2 must be low to enable the eight Y outputs; otherwise outputs are Hi-Z. |+| 20 | VCC | power_in | Supply voltage, 2 V to 6 V (recommended). Absolute max 7 V. Bypass with 100 nF close to pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20 |+| Category | Logic |+| Pins | 20 |++## Ordering variants++- `SN74HC541PWR`+- `SN74HC541PWRDB`+- `SN74HC541PWRDW`+- `SN74HC541PWRN`+- `SN74HC541PWRNS`+- `SN74HC541PWRJ`+- `SN74HC541PWRFK`++## CAD (KiCad official)++- Symbol: `SN74HC541PWR`+- 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:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn74hc541.pdf) (34 pp, sha256 `9d9bc06ae10f8f37`, 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/sn74hc541pwr-datasheet.pdf)

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