component
MAX3485ESA+T-JSM
Public Made by Adomby adom
JSMSEMI RS-485 / RS-422 ICs, SOP-8. Datasheet-verified pinout, 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
markdownMAX3485ESA+T-JSM
JSMSEMI · RS-485 / RS-422 ICs · SOP-8
MAX3485ESA+T-JSM from JSMSEMI, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RO | output | Receiver Output; drives logic-high when differential input (A−B) ≥ +0.2 V, logic-low when A−B ≤ −0.2 V, and three-state when RE is high. |
| 2 | RE | input | Receiver Output Enable, active-low; logic-low enables RO, logic-high forces RO to high-impedance (three-state); input high threshold VIH = 2.0 V, low threshold VIL = 0.8 V. |
| 3 | DE | input | Driver Output Enable, active-high; logic-high enables driver outputs A and B, logic-low forces A and B to high-impedance; input high threshold VIH = 2.0 V, low threshold VIL = 0.8 V. |
| 4 | DI | input | Driver Input; a logic-high drives A high and B low on the RS-485 bus, a logic-low drives A low and B high; input high threshold VIH = 2.0 V, low threshold VIL = 0.8 V. |
| 5 | GND | power_in | Ground reference for all signals and supply; connect to system ground plane. |
| 6 | A | bidirectional | Non-Inverting Driver Output / Non-Inverting Receiver Input on the RS-485/RS-422 bus; driver output VOH ≥ VCC − 0.4 V (loaded), VOL ≤ 0.4 V; receiver common-mode input range −7 V to +12 V. |
| 7 | B | bidirectional | Inverting Driver Output / Inverting Receiver Input on the RS-485/RS-422 bus; driver output complement of A; receiver common-mode input range −7 V to +12 V. |
| 8 | VCC | power_in | Positive power supply; recommended operating range 0 V to 3.3 V ±5%, absolute maximum 6.0 V; quiescent supply current 425 µA (no load, DE = 0 V or VCC, RE = 0 V or VCC), max 2000 µA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
MAX3485ESA+T-JSM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
max3485esa-t-jsm-etched.step/max3485esa-t-jsm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max3485esa-t-jsm.step/max3485esa-t-jsm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (10 pp, sha256
64abcab54ba46e60, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-4-6(vision), consensusclaude-opus-4-7(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).