# SN65ELT20DR

**Texas Instruments** · Translators, Level Shifters · SOIC-8

SN65ELT20DR from Texas Instruments, in a SOIC-8. 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 | NC | unconnected | Labeled NC (no connect) in the D-8 top-view pinout assignment; the datasheet gives no function for this pin. |
| 2 | Q | output | One of the complementary PECL outputs; the characterization test condition terminates each output through 50 Ω to VCC − 2 V. |
| 3 | Q̄ | output | The complementary PECL output (printed as Q with an overbar in the pinout); the characterization test condition terminates each output through 50 Ω to VCC − 2 V. |
| 4 | NC | unconnected | Labeled NC (no connect) in the D-8 top-view pinout assignment; the datasheet gives no function for this pin. |
| 5 | GND | power_in | Ground reference; the device operates with GND = 0 V. |
| 6 | NC | unconnected | Labeled NC (no connect) in the D-8 top-view pinout assignment; the datasheet gives no function for this pin. |
| 7 | D | input | TTL input; VIH minimum is 2 V and VIL maximum is 0.8 V, with input voltage not to exceed VCC and an absolute maximum of 6 V. |
| 8 | VCC | power_in | Positive supply; recommended operating range is 4.2 V to 5.7 V with GND = 0 V, and the absolute maximum PECL-mode supply is 6 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Logic |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `SN65ELT20DR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sn65elt20dr-etched.step` / `sn65elt20dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65elt20dr.step` / `sn65elt20dr.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/sn65elt20.pdf) (17 pp, sha256 `4e46d50cb11a1542`, retrieved 2026-10-07, 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/sn65elt20dr-datasheet.pdf)