GM13487E

@@ -0,0 +1,48 @@+# GM13487E++**GATEMODE** · RS-485/RS-422 ICs · SOP-8++GM13487E from GATEMODE, 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 the receiver is enabled and V(A)-V(B) > -50mV, RO is high; when V(A)-V(B) < -200mV, RO is low. High-impedance when the receiver is disabled. |+| 2 | /RE | input | Active-low Receiver Output Enable. Drive /RE low to enable RO; drive /RE high to let the AutoDirection circuit control the receiver. /RE is a hot-swap input with internal pull-up circuitry during power-up. |+| 3 | /SHDN | input | Active-low Shutdown. Drive /SHDN high for normal operation; drive /SHDN low to put the part in shutdown (typ. 2µA, max 10µA supply current). |+| 4 | DI | input | Driver Input. Drive DI low to force noninverting output (A) low and inverting output (B) high; drive DI high to force A high and B low. DI feeds the internal AutoDirection state machine and is a hot-swap input. Must be driven high to enter the idle state. |+| 5 | GND | power_in | Ground reference for the device. |+| 6 | A | bidirectional | Noninverting Receiver Input and Noninverting Driver Output. Connects to the RS-485/RS-422 differential bus 'A' line. ±15kV HBM/Air-Gap ESD protection; input range −7V to +12V common-mode. |+| 7 | B | bidirectional | Inverting Receiver Input and Inverting Driver Output. Connects to the RS-485/RS-422 differential bus 'B' line. ±15kV HBM/Air-Gap ESD protection; input range −7V to +12V common-mode. |+| 8 | VCC | power_in | Positive Supply, VCC = +3.3V ±5% or +5V ±5%. Bypass VCC to GND with a 0.1µF capacitor. Typical ICC = 0.6mA at 5V, 0.47mA at 3.3V (no load). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | GATEMODE |+| Package | SOP-8 |+| Category | Comm/UART |+| Pins | 8 |++## Ordering variants++- `GM13487E`+- `GM13487EGM13488E`++## CAD (KiCad official)++- Symbol: `GM13487E`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [GATEMODE datasheet](docs/gm13487e-datasheet.pdf) (14 pp, sha256 `9603302a53488467`, retrieved 2026-08-17, tier: lcsc)+- **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).++[Datasheet PDF](docs/gm13487e-datasheet.pdf)

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