ISO1050DWR

@@ -0,0 +1,58 @@+# ISO1050DWR++**Texas Instruments** · CAN Controllers · SOIC-16-300mil++ISO1050DWR from Texas Instruments, 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 | VCC1 | power_in | Digital/controller-side supply voltage (3 V to 5.5 V). Powers the logic side (TXD/RXD) of the isolation barrier. Bypass locally to GND1. |+| 2 | GND1 | power_in | Digital-side ground reference. All logic-side voltages (VCC1, TXD, RXD) are measured with respect to GND1. Tied together with pins 7 and 8. |+| 3 | RXD | output | CAN receive data output to the microcontroller. LOW indicates a dominant bus state, HIGH indicates a recessive bus state. Logic-side signal referenced to GND1/VCC1. |+| 4 | NC | unconnected | No internal connection. Leave floating or tie as convenient for layout; no electrical function. |+| 5 | NC | unconnected | No internal connection. Leave floating or tie as convenient for layout; no electrical function. |+| 6 | TXD | input | CAN transmit data input from the microcontroller. LOW drives the bus to a dominant state, HIGH lets the bus return to recessive. Dominant time-out prevents indefinite bus lockout. |+| 7 | GND1 | power_in | Digital-side ground connection. Tie externally to pins 2 and 8 to form the logic-side ground plane. |+| 8 | GND1 | power_in | Digital-side ground connection. Tie externally to pins 2 and 7 to form the logic-side ground plane. |+| 9 | GND2 | power_in | Transceiver/bus-side ground connection. All bus-side voltages (VCC2, CANH, CANL) are measured with respect to GND2. Isolated from GND1 by the SiO2 barrier. |+| 10 | GND2 | power_in | Transceiver-side ground connection. Tie together with pins 9 and 15 to form the bus-side ground plane. |+| 11 | NC | unconnected | No internal connection. Leave floating or tie as convenient for layout; no electrical function. |+| 12 | CANL | bidirectional | Low-level CAN bus line. Differential bus I/O tolerating -27 V to +40 V bus faults and -12 V to +12 V common-mode. Pair with CANH through the twisted CAN bus with proper termination. |+| 13 | CANH | bidirectional | High-level CAN bus line. Differential bus I/O tolerating -27 V to +40 V bus faults and -12 V to +12 V common-mode. Pair with CANL through the twisted CAN bus with proper termination. |+| 14 | NC | unconnected | No internal connection. Leave floating or tie as convenient for layout; no electrical function. |+| 15 | GND2 | power_in | Transceiver-side ground connection. Tie together with pins 9 and 10 to form the bus-side ground plane. |+| 16 | VCC2 | power_in | Transceiver/bus-side supply voltage (nominal 5 V, 4.75 V to 5.25 V). Powers the CAN driver/receiver on the isolated side. Bypass locally to GND2. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16-300mil |+| Category | Interface |+| Pins | 16 |++## Ordering variants++- `ISO1050DWRDW`+- `ISO1050DWRDWR`+- `ISO1050DWRDUB`+- `ISO1050DWRDUBR`++## CAD (KiCad official)++- Symbol: `ISO1050DWR`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16-300mil (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/iso1050dwr.pdf) (39 pp, sha256 `a0c90f640df4c1aa`, 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/iso1050dwr-datasheet.pdf)

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