component
SN75157DR
Public Made by Adomby adom
Texas Instruments RS-485 / RS-422 ICs, SOIC-8. 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
markdownSN75157DR
Texas Instruments · RS-485 / RS-422 ICs · SOIC-8
SN75157DR 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 | 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 (+/-5%) Positive Supply Connection Pin |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SN75157DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
sn75157dr-etched.step/sn75157dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn75157dr.step/sn75157dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (21 pp, sha256
4038a23c8b55ead0, retrieved 2026-10-01, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).