component
SN75157PSR
Public Made by Adomby adom
Texas Instruments RS-485 / RS-422 ICs, SO-8-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# SN75157PSR++**Texas Instruments** · RS-485 / RS-422 ICs · SO-8-208mil++SN75157PSR from Texas Instruments, in a SO-8-208mil. 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 | 1IN+ | input | Non-inverting differential input for channel 1's differential receiver. |+| 2 | 1OUT | output | Single-ended output for channel 1 differential receiver. |+| 3 | 2OUT | output | Single-ended output for channel 2 differential receiver. |+| 4 | GND | power_in | Device ground. |+| 5 | 2IN- | input | Inverting differential input for channel 2's differential receiver. |+| 6 | 2IN+ | input | Non-inverting differential input for channel 2's differential receiver. |+| 7 | 1IN- | input | Inverting differential input for channel 1's differential receiver. |+| 8 | VCC | power_in | 5V positive supply connection pin with ±5% tolerance. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SO-8-208mil |+| Category | Interface |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `SN75157PSR`+- Footprint: `Package_SO:SO-8_3.9x4.9mm_P1.27mm`+- 3D model: SO-8-208mil (KiCad packages3D, STEP)+- 3D model files: `sn75157psr-etched.step` / `sn75157psr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn75157psr.step` / `sn75157psr.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/sn75157) (21 pp, sha256 `398bb6bb956dce03`, retrieved 2026-10-07, 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/sn75157psr-datasheet.pdf)
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