# SN74AVCH8T245PWR

**Texas Instruments** · Translators, Level Shifters · TSSOP-24

SN74AVCH8T245PWR from Texas Instruments, in a TSSOP-24. 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 | VCCA | power_in | A-port supply voltage. 1.2V ≤ VCCA ≤ 3.6V |
| 2 | DIR | input | Direction-control signal. Referenced to VCCA. |
| 3 | A1 | bidirectional | Input/output A1. Referenced to VCCA. |
| 4 | A2 | bidirectional | Input/output A2. Referenced to VCCA. |
| 5 | A3 | bidirectional | Input/output A3. Referenced to VCCA. |
| 6 | A4 | bidirectional | Input/output A4. Referenced to VCCA. |
| 7 | A5 | bidirectional | Input/output A5. Referenced to VCCA. |
| 8 | A6 | bidirectional | Input/output A6. Referenced to VCCA. |
| 9 | A7 | bidirectional | Input/output A7. Referenced to VCCA. |
| 10 | A8 | bidirectional | Input/output A8. Referenced to VCCA. |
| 11 | GND | power_in | Ground |
| 12 | GND | power_in | Ground |
| 13 | GND | power_in | Ground |
| 14 | B8 | bidirectional | Input/output B8. Referenced to VCCB. |
| 15 | B7 | bidirectional | Input/output B7. Referenced to VCCB. |
| 16 | B6 | bidirectional | Input/output B6. Referenced to VCCB. |
| 17 | B5 | bidirectional | Input/output B5. Referenced to VCCB. |
| 18 | B4 | bidirectional | Input/output B4. Referenced to VCCB. |
| 19 | B3 | bidirectional | Input/output B3. Referenced to VCCB. |
| 20 | B2 | bidirectional | Input/output B2. Referenced to VCCB. |
| 21 | B1 | bidirectional | Input/output B1. Referenced to VCCB. |
| 22 | OE | input | 3-state output-mode enables. Pull OE high to place all outputs in 3-state mode. Referenced to VCCA. |
| 23 | VCCB | power_in | B-port supply voltage. 1.2V ≤ VCCB ≤ 3.6V |
| 24 | VCCB | power_in | B-port supply voltage. 1.2V ≤ VCCB ≤ 3.6V |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-24 |
| Category | Logic |
| Pins | 24 |

## CAD (KiCad official)

- Symbol: `SN74AVCH8T245PWR`
- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`
- 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files: `sn74avch8t245pwr-etched.step` / `sn74avch8t245pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74avch8t245pwr.step` / `sn74avch8t245pwr.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/sn74avch8t245.pdf) (39 pp, sha256 `6252cb6a0e32e6d8`, retrieved 2026-10-03, tier: manufacturer)
- **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/sn74avch8t245pwr-datasheet.pdf)