SN75176BDR

@@ -0,0 +1,50 @@+# SN75176BDR++**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8++SN75176BDR 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 | Logic data output from the RS-485 receiver. CMOS-compatible output driven from the differential comparator on A/B; high when V_ID = V_A - V_B > +200mV, low when < -200mV. High-impedance when /RE is deasserted (high). |+| 2 | /RE | input | Receiver enable, active low. Drive low to enable the receiver output R; drive high to place R in high-impedance. Can be tied with DE to form a direction-control signal. |+| 3 | DE | input | Driver enable, active high. Drive high to enable the differential driver onto bus pins A/B; drive low to place the driver in high-impedance so the bus can be used by other transceivers. |+| 4 | D | input | Logic data input to the RS-485 driver. When DE is high, a logic-high on D drives A high and B low; a logic-low drives A low and B high. V_IH = 2V min, V_IL = 0.8V max. |+| 5 | GND | power_in | Device ground pin (0V reference). |+| 6 | A | bidirectional | Non-inverting RS-422/RS-485 differential bus line. Serves as driver output when DE is high and as receiver input when /RE is low. Withstands -7V to +12V common-mode; receiver input impedance ≥12kΩ. |+| 7 | B | bidirectional | Inverting RS-422/RS-485 differential bus line. Serves as driver output when DE is high and as receiver input when /RE is low. Withstands -7V to +12V common-mode; receiver input impedance ≥12kΩ. |+| 8 | VCC | power_in | Positive supply input. Connect to a single 5V supply (4.75V to 5.25V recommended; 7V absolute max). Typical I_CC 42mA with outputs enabled. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SN75176BDRD`+- `SN75176BDRDR`+- `SN75176BDRP`+- `SN75176BDRPS`++## CAD (KiCad official)++- Symbol: `SN75176BDR`+- 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/sn75176b.pdf) (30 pp, sha256 `6967824b2ea2d976`, 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/sn75176bdr-datasheet.pdf)

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