SN65HVD72DR

@@ -0,0 +1,52 @@+# SN65HVD72DR++**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8++SN65HVD72DR from Texas Instruments, in a SOIC-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 | R | output | Receive data output. CMOS-level output derived from the differential (A-B) bus voltage, drives 3.3-V logic. Output current rated ±8 mA. |+| 2 | RE | input | Active-low receiver enable. Drive low to enable the receiver output R; drive high to place R in high-impedance. 5-V tolerant logic input compatible with 3.3-V or 5-V controllers. |+| 3 | DE | input | Active-high driver enable. Drive high to enable the differential driver on A/B; drive low to place A/B in high-impedance (bus release). 5-V tolerant logic input. |+| 4 | D | input | Driver data input. Logic level driven onto the differential bus (A high / B low when D is high) when DE is asserted. 5-V tolerant CMOS input. |+| 5 | GND | power_in | Local device ground / reference potential. |+| 6 | A | bidirectional | Non-inverting differential bus I/O (RS-485 A line). Driver output or receiver input, complementary to B. Bus voltage rated −13 V to +16.5 V absmax; input range −7 V to +12 V recommended; withstands ±12 kV IEC contact discharge. |+| 7 | B | bidirectional | Inverting differential bus I/O (RS-485 B line). Driver output or receiver input, complementary to A. Same absmax/ESD ratings as A. |+| 8 | VCC | power_in | Supply voltage input. Recommended 3.0 V to 3.6 V (nominal 3.3 V). ICC < 1 mA quiescent; standby current < 2 µA when both driver and receiver are disabled. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SN65HVD72DRDR`+- `SN65HVD72DRD`+- `SN65HVD72DRDGKR`+- `SN65HVD72DRDGK`+- `SN65HVD72DRDRBR`+- `SN65HVD72DRDRB`++## CAD (KiCad official)++- Symbol: `SN65HVD72DR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn65hvd72.pdf) (47 pp, sha256 `b46f5803fa8302f9`, retrieved 2026-08-17, tier: manufacturer)+- **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/sn65hvd72dr-datasheet.pdf)

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