component
MAX485CSA+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
markdownMAX485CSA+T-JSM
JSMSEMI · RS-485 / RS-422 ICs · SOP-8
MAX485CSA+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. When /RE is low, RO is high if A-B ≥ -50mV and low if A-B ≤ -200mV. High-impedance when /RE is high. |
| 2 | /RE | input | Receiver output enable (active low). RO is enabled when /RE is low and high-impedance when /RE is high. Driving /RE high while DE is low places the device in low-power shutdown mode. |
| 3 | DE | input | Driver output enable (active high). Driver outputs A and B are enabled when DE is high and high-impedance when DE is low. Driving /RE high while DE is low places the device in low-power shutdown mode. |
| 4 | DI | input | Driver input. When DE is high, a low on DI forces the non-inverting output (A) low and the inverting output (B) high; a high on DI forces A high and B low. |
| 5 | GND | power_in | Ground reference. |
| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output on the RS-485/RS-422 bus. ±15kV HBM ESD protected. Absolute maximum input voltage ±13V; receiver input impedance ≥96kΩ. |
| 7 | B | bidirectional | Inverting receiver input and inverting driver output on the RS-485/RS-422 bus. ±15kV HBM ESD protected. Absolute maximum input voltage ±13V; receiver input impedance ≥96kΩ. |
| 8 | VCC | power_in | Positive supply input, 3.0V ≤ VCC ≤ 5.5V (absolute max +7V). Typical quiescent current 140µA; shutdown current 0.1µA typical. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-8 |
| Category | Interface |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
MAX485CSA+T-JSM
CAD (KiCad official)
- Symbol:
MAX485CSA+T-JSM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
max485csa-t-jsm-etched.step/max485csa-t-jsm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max485csa-t-jsm.step/max485csa-t-jsm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (12 pp, sha256
b2015c5daed8b79f, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).