# SN74ABT541BDBR

**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SSOP-20-208mil

SN74ABT541BDBR from Texas Instruments, in a SSOP-20-208mil. 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 | OE1 | input | Active-low output-enable input; all outputs are high-impedance when high. |
| 2 | A1 | input | Data input for buffer channel 1. |
| 3 | A2 | input | Data input for buffer channel 2. |
| 4 | A3 | input | Data input for buffer channel 3. |
| 5 | A4 | input | Data input for buffer channel 4. |
| 6 | A5 | input | Data input for buffer channel 5. |
| 7 | A6 | input | Data input for buffer channel 6. |
| 8 | A7 | input | Data input for buffer channel 7. |
| 9 | A8 | input | Data input for buffer channel 8. |
| 10 | GND | power_in | Ground reference (0V). |
| 11 | Y8 | tri_state | 3-state buffered output for channel 8; high-impedance when either OE input is high. |
| 12 | Y7 | tri_state | 3-state buffered output for channel 7; high-impedance when either OE input is high. |
| 13 | Y6 | tri_state | 3-state buffered output for channel 6; high-impedance when either OE input is high. |
| 14 | Y5 | tri_state | 3-state buffered output for channel 5; high-impedance when either OE input is high. |
| 15 | Y4 | tri_state | 3-state buffered output for channel 4; high-impedance when either OE input is high. |
| 16 | Y3 | tri_state | 3-state buffered output for channel 3; high-impedance when either OE input is high. |
| 17 | Y2 | tri_state | 3-state buffered output for channel 2; high-impedance when either OE input is high. |
| 18 | Y1 | tri_state | 3-state buffered output for channel 1; high-impedance when either OE input is high. |
| 19 | OE2 | input | Active-low output-enable input; all outputs are high-impedance when high. |
| 20 | VCC | power_in | Positive supply voltage; recommended operating range 4.5V to 5.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-20-208mil |
| Category | Logic |
| Pins | 20 |

## CAD (KiCad official)

- Symbol: `SN74ABT541BDBR`
- Footprint: `Package_SO:SSOP-20_5.3x7.2mm_P0.65mm`
- 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
- 3D model files: `sn74abt541bdbr-etched.step` / `sn74abt541bdbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74abt541bdbr.step` / `sn74abt541bdbr.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/cn/lit/gpn/sn74abt541b) (27 pp, sha256 `15e82956ebf8b096`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/sn74abt541bdbr-datasheet.pdf)