# 74LVC2T45DC-Q100H

**Nexperia** · Translators, Level Shifters · VSSOP-8-0.5mm

74LVC2T45DC-Q100H from Nexperia, in a VSSOP-8-0.5mm. 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 | VCC(A) | power_in | Supply voltage for port A and DIR reference. Operating range 1.2 V to 5.5 V (absolute max 6.5 V). |
| 2 | 1A | bidirectional | Channel 1 data I/O on the A-port side. Referenced to VCC(A). Direction (input vs output) is set by DIR: DIR=L makes 1A an input driven onto 1B; DIR=H makes 1A an output driven from 1B. |
| 3 | 2A | bidirectional | Channel 2 data I/O on the A-port side. Referenced to VCC(A). Direction is set by the shared DIR pin (DIR=L: 2A is input; DIR=H: 2A is output). |
| 4 | GND | power_in | Ground reference (0 V) for the device. |
| 5 | DIR | input | Direction control input, referenced to VCC(A). LOW selects A-to-B disabled/B-to-A transmission (nA=nB, nB is input); HIGH selects A-to-B transmission (nA input, nB=nA). Pulling either VCC(A) or VCC(B) to GND places both ports in high-impedance (suspend/OFF-state). |
| 6 | 2B | bidirectional | Channel 2 data I/O on the B-port side. Referenced to VCC(B). Direction opposite to 2A per the shared DIR pin (DIR=L: 2B is output; DIR=H: 2B is input). |
| 7 | 1B | bidirectional | Channel 1 data I/O on the B-port side. Referenced to VCC(B). Direction opposite to 1A per the shared DIR pin (DIR=L: 1B is output; DIR=H: 1B is input). |
| 8 | VCC(B) | power_in | Supply voltage for port B. Operating range 1.2 V to 5.5 V (absolute max 6.5 V). May be set independently of VCC(A) to translate between two voltage domains. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | VSSOP-8-0.5mm |
| Category | Logic |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `74LVC2T45DC-Q100H`
- `74LVCH2T45DC-Q100`
- `74LVC2T45GT-Q100`
- `74LVC2T45GS-Q100`

## CAD (KiCad official)

- Symbol: `74LVC2T45DC-Q100H`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.5mm (KiCad packages3D, STEP)
- 3D model files: `74lvc2t45dc-q100h-etched.step` / `74lvc2t45dc-q100h-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `74lvc2t45dc-q100h.step` / `74lvc2t45dc-q100h.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914232721625088) (30 pp, sha256 `19238362be695ea6`, retrieved 2026-08-17, tier: lcsc)
- **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/74lvc2t45dc-q100h-datasheet.pdf)