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ADM2481BRWZ-RL7
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Analog Devices Isolated RS-485/422 Transceivers, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# ADM2481BRWZ-RL7++**Analog Devices** · Isolated RS-485/422 Transceivers · SOIC-16-300mil++ADM2481BRWZ-RL7 from Analog Devices, in a SOIC-16-300mil. 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 | VDD1 | power_in | Power supply (logic side) within 3.0 V to 5.5 V relative to GND1. |+| 2 | GND1 | power_in | Ground (logic side), must be connected together with pins 7 and 8. |+| 3 | RxD | tri_state | Receiver output data, high when (A − B) ≥ −30 mV, low when (A − B) ≤ −200 mV, tristate when receiver disabled by RE driven high. |+| 4 | RE | input | Receiver enable input (active-low), enables receiver when low and disables receiver when driven high. |+| 5 | DE | input | Driver enable input (active-high), enables driver when driven high and disables driver when low. |+| 6 | TxD | input | Transmit data input for driver, accepts CMOS logic levels referenced to VDD1/GND1. |+| 7 | GND1 | power_in | Ground (logic side), must be connected together with pins 2 and 8. |+| 8 | GND1 | power_in | Ground (logic side), must be connected together with pins 2 and 7. |+| 9 | GND2 | power_in | Ground (bus side), isolated from logic side GND1. |+| 10 | GND2 | power_in | Ground (bus side), isolated from logic side GND1. |+| 11 | NC | unconnected | No connect, must not be connected to any circuit. |+| 12 | A | tri_state | Noninverting driver output and receiver input, high-impedance when driver disabled or VDD1/VDD2 powered down. |+| 13 | B | tri_state | Inverting driver output and receiver input, high-impedance when driver disabled or VDD1/VDD2 powered down. |+| 14 | NC | unconnected | No connect, must not be connected to any circuit. |+| 15 | GND2 | power_in | Ground (bus side), isolated from logic side GND1. |+| 16 | VDD2 | power_in | Power supply (bus side) within 4.75 V to 5.25 V relative to GND2. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Analog Devices |+| Package | SOIC-16-300mil |+| Category | Signal Isolation Devices |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `ADM2481BRWZ-RL7`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)+- 3D model files: `adm2481brwz-rl7-etched.step` / `adm2481brwz-rl7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adm2481brwz-rl7.step` / `adm2481brwz-rl7.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586193481853513728) (17 pp, sha256 `3293123aba468dcb`, retrieved 2026-09-18, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/adm2481brwz-rl7-datasheet.pdf)
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