ISO1044BDR

@@ -0,0 +1,49 @@+# ISO1044BDR++**Texas Instruments** · CAN Controllers · SOIC-8++ISO1044BDR 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 | VCC1 | power_in | Digital-side supply voltage (Side 1). Operating range 1.71 V to 5.5 V; supports 1.8 V, 2.5 V, 3.3 V, and 5.0 V logic interfaces to the CAN controller. |+| 2 | TXD | input | CAN transmit data input from the MCU. LOW drives a dominant bus state; HIGH allows a recessive bus state. Referenced to VCC1/GND1 domain. |+| 3 | RXD | output | CAN receive data output to the MCU. LOW indicates a dominant bus state; HIGH indicates a recessive bus state. Push-pull output referenced to VCC1/GND1. |+| 4 | GND1 | power_in | Digital-side ground connection (Side 1). Reference for VCC1, TXD, and RXD signals. |+| 5 | CANL | bidirectional | Low-level CAN bus line. Differential bus I/O with the CANH pin; withstands ±58 V bus fault voltage and ±12 V common-mode range. |+| 6 | CANH | bidirectional | High-level CAN bus line. Differential bus I/O with the CANL pin; withstands ±58 V bus fault voltage and ±12 V common-mode range. |+| 7 | GND2 | power_in | Transceiver-side ground connection (Side 2). Reference for VCC2, CANH, and CANL on the isolated bus side. |+| 8 | VCC2 | power_in | Transceiver-side supply voltage (Side 2). Operating range 4.5 V to 5.5 V; powers the CAN bus driver stage. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `ISO1044BDRBDR`+- `ISO1044BDRBD`++## CAD (KiCad official)++- Symbol: `ISO1044BDR`+- 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](docs/iso1044bdr-datasheet.pdf) (38 pp, sha256 `57ea53d7b03aaea9`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/iso1044bdr-datasheet.pdf)

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