TCAN1042HVDRQ1

@@ -0,0 +1,51 @@+# TCAN1042HVDRQ1++**Texas Instruments** · CAN Controllers · SOIC-8++TCAN1042HVDRQ1 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 | TXD | input | CAN transmit data input from the local protocol controller. LOW drives a dominant bus state, HIGH allows a recessive bus state. Referenced to V_IO logic levels (0.7*V_IO High / 0.3*V_IO Low). Includes a driver dominant time-out that recovers the bus if TXD is stuck low. |+| 2 | GND | power_in | Ground reference for the transceiver. All voltages in the datasheet are referenced to this terminal. |+| 3 | VCC | power_in | Transceiver 5 V supply voltage. Recommended operating range 4.5 V to 5.5 V. Supplies the CAN bus driver and internal analog circuitry; requires local bypass capacitance. |+| 4 | RXD | output | CAN receive data output to the local protocol controller. LOW indicates a dominant bus state, HIGH indicates a recessive bus state. Output high level is referenced to V_IO on 'V' suffix devices. Drive capability ±2 mA (absolute max ±8 mA). |+| 5 | VIO | power_in | I/O level-shifting supply voltage (3 V to 5.5 V) used to match the logic-side supply of the host MCU. Sets the TXD/STB input thresholds and the RXD output high level. Required only on 'V' suffix devices; supports undervoltage-protected mode (UV_VIO ≈ 1.3-2.75 V). |+| 6 | CANL | bidirectional | Low-side CAN bus I/O line. Differential bus terminal paired with CANH. Fault-protected to ±70 V on the 'H' variants, common-mode input range ±30 V. Tolerates up to ±70 V differential (V_DIFF). |+| 7 | CANH | bidirectional | High-side CAN bus I/O line. Differential bus terminal paired with CANL. Fault-protected to ±70 V on the 'H' variants, common-mode input range ±30 V. |+| 8 | STB | input | Standby mode control input (active high). Drive LOW for normal operation; drive HIGH to enter low-power standby with remote wake-up (WUP) monitoring. Referenced to V_IO logic levels on 'V' suffix devices. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `TCAN1042HVDRQ1D`+- `TCAN1042HVDRQ1`+- `TCAN1042HVDRQ1DRB`++## CAD (KiCad official)++- Symbol: `TCAN1042HVDRQ1`+- 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/tcan1042hvdrq1.pdf) (43 pp, sha256 `b419d90f0d678231`, 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/tcan1042hvdrq1-datasheet.pdf)

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