component
STR485ELVQT
Public Made by Adomby adom
STMicroelectronics RS-485 / RS-422 ICs, DFN-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTR485ELVQT
STMicroelectronics · RS-485 / RS-422 ICs · DFN-10-EP(3x3)
STR485ELVQT from STMicroelectronics, in a DFN-10-EP(3x3). 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 | VL | power_in | Logic power supply 1.65 V to 3.6 V for logic I/O signals |
| 2 | R | output | Receiver data output |
| 3 | DE | input | Driver enable input with integrated 150 Ω series resistor followed by 2.5 MΩ network to GND |
| 4 | nRE | input | Receiver enable input (active low) with integrated 150 Ω series resistor followed by 2.5 MΩ network to VCC |
| 5 | D | input | Transmission data input |
| 6 | GND | power_in | Ground |
| 7 | SLR | input | Slew rate select: GND or open for 20 Mbps, VL for 250 kbps low-speed mode |
| 8 | A | tri_state | Differential RS485 bus terminal A with ±13 V absolute maximum rating |
| 9 | B | tri_state | Differential RS485 bus terminal B with ±13 V absolute maximum rating |
| 10 | VCC | power_in | Bus supply 3 V to 3.6 V for A and B bus lines |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DFN-10-EP(3x3) |
| Category | Interface |
| Pins | 11 |
CAD (KiCad official)
- Symbol:
STR485ELVQT - Footprint:
Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm - 3D model: DFN-10-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
str485elvqt-etched.step/str485elvqt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);str485elvqt.step/str485elvqt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (26 pp, sha256
3efc34ac3b604b6f, retrieved 2026-09-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).