# SN74LVC8T245DBQR

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

SN74LVC8T245DBQR from Texas Instruments, in a SSOP-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 | Power supply for port A with operating voltage range 1.65V to 5.5V |
| 2 | DIR | input | Direction control input; high enables A-to-B data transfer, low enables B-to-A data transfer |
| 3 | A1 | bidirectional | Bidirectional data I/O port A1 referenced to VCCA voltage |
| 4 | A2 | bidirectional | Bidirectional data I/O port A2 referenced to VCCA voltage |
| 5 | A3 | bidirectional | Bidirectional data I/O port A3 referenced to VCCA voltage |
| 6 | A4 | bidirectional | Bidirectional data I/O port A4 referenced to VCCA voltage |
| 7 | A5 | bidirectional | Bidirectional data I/O port A5 referenced to VCCA voltage |
| 8 | A6 | bidirectional | Bidirectional data I/O port A6 referenced to VCCA voltage |
| 9 | A7 | bidirectional | Bidirectional data I/O port A7 referenced to VCCA voltage |
| 10 | A8 | bidirectional | Bidirectional data I/O port A8 referenced to VCCA voltage |
| 11 | GND | power_in | Ground connection |
| 12 | GND | power_in | Ground connection |
| 13 | GND | power_in | Ground connection |
| 14 | B8 | bidirectional | Bidirectional data I/O port B8 referenced to VCCB voltage |
| 15 | B7 | bidirectional | Bidirectional data I/O port B7 referenced to VCCB voltage |
| 16 | B6 | bidirectional | Bidirectional data I/O port B6 referenced to VCCB voltage |
| 17 | B5 | bidirectional | Bidirectional data I/O port B5 referenced to VCCB voltage |
| 18 | B4 | bidirectional | Bidirectional data I/O port B4 referenced to VCCB voltage |
| 19 | B3 | bidirectional | Bidirectional data I/O port B3 referenced to VCCB voltage |
| 20 | B2 | bidirectional | Bidirectional data I/O port B2 referenced to VCCB voltage |
| 21 | B1 | bidirectional | Bidirectional data I/O port B1 referenced to VCCB voltage |
| 22 | OE | input | Output enable input (active low); outputs in high-impedance state when high, referenced to VCCA voltage |
| 23 | VCCB | power_in | Power supply for port B with operating voltage range 1.65V to 5.5V |
| 24 | VCCB | power_in | Power supply for port B with operating voltage range 1.65V to 5.5V |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SN74LVC8T245DBQR`
- Footprint: `Package_SO:SSOP-24_5.3x8.2mm_P0.65mm`
- 3D model: SSOP-24 (KiCad packages3D, STEP)
- 3D model files: `sn74lvc8t245dbqr-etched.step` / `sn74lvc8t245dbqr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lvc8t245dbqr.step` / `sn74lvc8t245dbqr.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/sn74lvc8t245) (39 pp, sha256 `b295dd770303d32c`, retrieved 2026-10-07, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/sn74lvc8t245dbqr-datasheet.pdf)