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MAX3485CSA-JSM
Public Made by Adomby adom
JSMSEMI RS-485/RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MAX3485CSA-JSM
JSMSEMI · RS-485/RS-422 ICs · SOP-8
MAX3485CSA-JSM from JSMSEMI, in a SOP-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 | RO | output | Receiver output, enabled when RE is low and high impedance when RE is high. |
| 2 | RE | input | Receiver output enable, active low; a logic low enables the receiver and a logic high disables it (input high ≥2.0V, low ≤0.6V). |
| 3 | DE | input | Driver output enable, active high; a logic high enables the driver outputs and a logic low places them in high impedance (input high ≥2.0V, low ≤0.6V). |
| 4 | DI | input | Driver input; logic level on DI sets the differential driver outputs A and B when the driver is enabled (input high ≥2.0V, low ≤0.6V). |
| 5 | GND | power_in | Ground. |
| 6 | A | bidirectional | Non-inverting driver output and non-inverting receiver input, with a −7V to 12V receiver common-mode range. |
| 7 | B | bidirectional | Inverting driver output and inverting receiver input, with a −7V to 12V receiver common-mode range. |
| 8 | VCC | power_in | Power supply, 3.3V ±5% recommended operating range (absolute maximum 6.0V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-8 |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
MAX3485CSA-JSM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
max3485csa-jsm-etched.step/max3485csa-jsm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max3485csa-jsm.step/max3485csa-jsm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (9 pp, sha256
a7e482f4dd5480e0, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(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).
# MAX3485CSA-JSM
**JSMSEMI** · RS-485/RS-422 ICs · SOP-8
MAX3485CSA-JSM from JSMSEMI, in a SOP-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 | RO | output | Receiver output, enabled when RE is low and high impedance when RE is high. |
| 2 | RE | input | Receiver output enable, active low; a logic low enables the receiver and a logic high disables it (input high ≥2.0V, low ≤0.6V). |
| 3 | DE | input | Driver output enable, active high; a logic high enables the driver outputs and a logic low places them in high impedance (input high ≥2.0V, low ≤0.6V). |
| 4 | DI | input | Driver input; logic level on DI sets the differential driver outputs A and B when the driver is enabled (input high ≥2.0V, low ≤0.6V). |
| 5 | GND | power_in | Ground. |
| 6 | A | bidirectional | Non-inverting driver output and non-inverting receiver input, with a −7V to 12V receiver common-mode range. |
| 7 | B | bidirectional | Inverting driver output and inverting receiver input, with a −7V to 12V receiver common-mode range. |
| 8 | VCC | power_in | Power supply, 3.3V ±5% recommended operating range (absolute maximum 6.0V). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-8 |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `MAX3485CSA-JSM`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `max3485csa-jsm-etched.step` / `max3485csa-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max3485csa-jsm.step` / `max3485csa-jsm.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [JSMSEMI datasheet](docs/max3485csa-jsm-datasheet.pdf) (9 pp, sha256 `a7e482f4dd5480e0`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/max3485csa-jsm-datasheet.pdf)