# THVD1452DGSR

**Texas Instruments** · RS-485 / RS-422 ICs · VSSOP-10-0.5mm

THVD1452DGSR from Texas Instruments, in a VSSOP-10-0.5mm. 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 | R | output | Receive data output providing logic-level representation of RS-485 bus data received by the receiver circuit |
| 2 | RE | input | Receiver enable input, active low with 2-MΩ internal pull-up, controls receiver circuit monitoring of RS-485 bus |
| 3 | DE | input | Driver enable input, active high with 2-MΩ internal pull-down, controls driver circuit transmission on RS-485 bus |
| 4 | D | input | Driver data input accepting digital logic data for transmission on RS-485 bus when driver is enabled |
| 5 | GND | power_in | Device ground providing 0V reference and power return path for all device circuits |
| 6 | Y | output | Digital bus output Y complementary to Z, provides full-duplex differential signaling on RS-485 transmit line Y |
| 7 | Z | output | Digital bus output Z complementary to Y, provides full-duplex differential signaling on RS-485 transmit line Z |
| 8 | B | input | Bus input B complementary to A, connects to RS-485 differential bus line B for receiver monitoring |
| 9 | A | input | Bus input A complementary to B, connects to RS-485 differential bus line A for receiver monitoring |
| 10 | VCC | power_in | Power supply input requiring 3.3-V to 5-V supply voltage for device operation |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | Interface |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `THVD1452DGSR`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files: `thvd1452dgsr-etched.step` / `thvd1452dgsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `thvd1452dgsr.step` / `thvd1452dgsr.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/thvd1452) (53 pp, sha256 `c4b3b0da87c870dd`, retrieved 2026-10-03, 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/thvd1452dgsr-datasheet.pdf)