# SN75DP139RSBR

**Texas Instruments** · Translators, Level Shifters · WQFN-40-EP(5x5)

SN75DP139RSBR from Texas Instruments, in a WQFN-40-EP(5x5). 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 | IN_D1- | input | DisplayPort Main Link Channel 0 Differential Input, negative signal of differential pair IN_D1. |
| 2 | IN_D1+ | input | DisplayPort Main Link Channel 0 Differential Input, positive signal of differential pair IN_D1. |
| 3 | VCC | power_in | 3.3 V Supply voltage. |
| 4 | IN_D2- | input | DisplayPort Main Link Channel 1 Differential Input, negative signal of differential pair IN_D2. |
| 5 | IN_D2+ | input | DisplayPort Main Link Channel 1 Differential Input, positive signal of differential pair IN_D2. |
| 6 | IN_D3- | input | DisplayPort Main Link Channel 2 Differential Input, negative signal of differential pair IN_D3. |
| 7 | IN_D3+ | input | DisplayPort Main Link Channel 2 Differential Input, positive signal of differential pair IN_D3. |
| 8 | VCC | power_in | 3.3 V Supply voltage. |
| 9 | IN_D4- | input | DisplayPort Main Link Channel 3 Differential Input, negative signal of differential pair IN_D4. |
| 10 | IN_D4+ | input | DisplayPort Main Link Channel 3 Differential Input, positive signal of differential pair IN_D4. |
| 11 | NC | unconnected | No Connect. |
| 12 | VCC | power_in | 3.3 V Supply voltage. |
| 13 | SRC | input | TMDS outputs rise and fall time select; input can be driven high, low, or left as high impedance with external resistor divider. |
| 14 | I2C_EN | input | Internal I2C register enable used for HDMI / DVI connector differentiation. |
| 15 | VSadj | input | TMDS Compliant Voltage Swing Control via 4.02 kΩ ±5% resistor for driver output voltage swing precision. |
| 16 | HPD_SOURCE | output | Hot Plug Detect Output with VOH of 0.9 V or 3.2 V typical depending on HPDINV setting. |
| 17 | SDA_SOURCE | bidirectional | Source Side Bidirectional DisplayPort Auxiliary Data Line for I2C communication. |
| 18 | SCL_SOURCE | bidirectional | Source Side Bidirectional DisplayPort Auxiliary Data Line for I2C communication. |
| 19 | VCC | power_in | 3.3 V Supply voltage. |
| 20 | NC | unconnected | No Connect. |
| 21 | OUT_D4+ | output | TMDS Data Clock Differential Output, positive signal of differential pair OUT_D4. |
| 22 | OUT_D4- | output | TMDS Data Clock Differential Output, negative signal of differential pair OUT_D4. |
| 23 | VCC | power_in | 3.3 V Supply voltage. |
| 24 | OUT_D3+ | output | TMDS Data 0 Differential Output, positive signal of differential pair OUT_D3. |
| 25 | OUT_D3- | output | TMDS Data 0 Differential Output, negative signal of differential pair OUT_D3. |
| 26 | OUT_D2+ | output | TMDS Data 1 Differential Output, positive signal of differential pair OUT_D2. |
| 27 | OUT_D2- | output | TMDS Data 1 Differential Output, negative signal of differential pair OUT_D2. |
| 28 | VCC | power_in | 3.3 V Supply voltage. |
| 29 | OUT_D1+ | output | TMDS Data 2 Differential Output, positive signal of differential pair OUT_D1. |
| 30 | OUT_D1- | output | TMDS Data 2 Differential Output, negative signal of differential pair OUT_D1. |
| 31 | OE_N | input | Output Enable and power saving function for High Speed Differential level shifter path; active low enables outputs. |
| 32 | VCC | power_in | 3.3 V Supply voltage. |
| 33 | SCL_SINK | bidirectional | TMDS Port Bidirectional DDC Data Line for I2C communication. |
| 34 | SDA_SINK | bidirectional | TMDS Port Bidirectional DDC Data Line for I2C communication. |
| 35 | HPD_SINK | input | Hot Plug Detect Input from TMDS sink device. |
| 36 | DDC_EN | input | Enables or Disables the DDC I2C buffer for TMDS port auxiliary communication. |
| 37 | VCC | power_in | 3.3 V Supply voltage. |
| 38 | HPDINV | input | HPD_SOURCE Logic and Level Select; determines HPD polarity and output voltage level. |
| 39 | OVS | input | DDC I2C buffer offset select with three programmable offset ranges; can be driven high, low, or left as high impedance with external resistor divider. |
| 40 | NC | unconnected | No Connect. |
| 41 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-40-EP(5x5) |
| Category | Logic |
| Pins | 41 |

## CAD (KiCad official)

- Symbol: `SN75DP139RSBR`
- Footprint: `Package_DFN_QFN:QFN-40-1EP_5x5mm_P0.4mm_EP3.6x3.6mm`
- 3D model: WQFN-40-EP(5x5) (KiCad packages3D, STEP)
- 3D model files: `sn75dp139rsbr-etched.step` / `sn75dp139rsbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn75dp139rsbr.step` / `sn75dp139rsbr.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/sn75dp139) (45 pp, sha256 `5631f38cf28dd1f2`, 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/sn75dp139rsbr-datasheet.pdf)