# SN74ACT241PWR

**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · TSSOP-20

SN74ACT241PWR from Texas Instruments, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OE | input | Output enable 1 (active low): when 1OE is low the 1Y outputs pass the 1A data, and when 1OE is high the 1Y outputs go to the high-impedance state. |
| 2 | 1A1 | input | Data input 1A1 of buffer channel 1; inputs are TTL-compatible and accept voltages up to 5.5 V. |
| 3 | 2Y4 | tri_state | 3-state output 2Y4 of buffer channel 2, high-impedance when 2OE is low. |
| 4 | 1A2 | input | Data input 1A2 of buffer channel 1; inputs are TTL-compatible and accept voltages up to 5.5 V. |
| 5 | 2Y3 | tri_state | 3-state output 2Y3 of buffer channel 2, high-impedance when 2OE is low. |
| 6 | 1A3 | input | Data input 1A3 of buffer channel 1; inputs are TTL-compatible and accept voltages up to 5.5 V. |
| 7 | 2Y2 | tri_state | 3-state output 2Y2 of buffer channel 2, high-impedance when 2OE is low. |
| 8 | 1A4 | input | Data input 1A4 of buffer channel 1; inputs are TTL-compatible and accept voltages up to 5.5 V. |
| 9 | 2Y1 | tri_state | 3-state output 2Y1 of buffer channel 2, high-impedance when 2OE is low. |
| 10 | GND | power_in | Ground pin. |
| 11 | 2A1 | input | Data input 2A1 of buffer channel 2; inputs are TTL-compatible and accept voltages up to 5.5 V. |
| 12 | 1Y4 | tri_state | 3-state output 1Y4 of buffer channel 1, high-impedance when 1OE is high. |
| 13 | 2A2 | input | Data input 2A2 of buffer channel 2; inputs are TTL-compatible and accept voltages up to 5.5 V. |
| 14 | 1Y3 | tri_state | 3-state output 1Y3 of buffer channel 1, high-impedance when 1OE is high. |
| 15 | 2A3 | input | Data input 2A3 of buffer channel 2; inputs are TTL-compatible and accept voltages up to 5.5 V. |
| 16 | 1Y2 | tri_state | 3-state output 1Y2 of buffer channel 1, high-impedance when 1OE is high. |
| 17 | 2A4 | input | Data input 2A4 of buffer channel 2; inputs are TTL-compatible and accept voltages up to 5.5 V. |
| 18 | 1Y1 | tri_state | 3-state output 1Y1 of buffer channel 1, high-impedance when 1OE is high. |
| 19 | 2OE | input | Output enable 2 (active high): when 2OE is high the 2Y outputs pass the 2A data, and when 2OE is low the 2Y outputs go to the high-impedance state. |
| 20 | VCC | power_in | Supply voltage, 4.5 V to 5.5 V recommended; bypass close to this pin per the datasheet guidance (0.1 µF for a single supply). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |

## CAD (KiCad official)

- Symbol: `SN74ACT241PWR`
- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`
- 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files: `sn74act241pwr-etched.step` / `sn74act241pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74act241pwr.step` / `sn74act241pwr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn74act241.pdf) (31 pp, sha256 `fbbcc6531a2607f1`, retrieved 2026-10-08, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/sn74act241pwr-datasheet.pdf)