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TCAN1044DRQ1

Texas Instruments · CAN ICs · SOIC-8

TCAN1044DRQ1 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 CAN controller/MCU. Internal pull-up to VCC (or VIO on devices with VIO). Drives the CAN bus low (dominant) when logic low.
2 GND power_in Device ground connection (0 V reference).
3 VCC power_in 5-V main supply voltage for the CAN transceiver. Recommended operating range 4.5 V to 5.5 V (nom 5 V).
4 RXD output CAN receive data output to the CAN controller/MCU. High-impedance (tri-state) when unpowered. Output high/low current rated ±2 mA.
5 NC/VIO unconnected On the TCAN1044-Q1 (no VIO): No Connect, not internally bonded. On the TCAN1044V-Q1 variant: VIO supply (1.7 V to 5.5 V) for the digital I/O level shifter of TXD/RXD/STB. The TCAN1044DRQ1 orderable is the non-VIO device; treat this pin as NC.
6 CANL bidirectional Low-level CAN bus I/O line. Connects to the CAN bus with CANH through a 60 Ω termination network. Tolerates ±58 V bus fault voltage.
7 CANH bidirectional High-level CAN bus I/O line. Connects to the CAN bus with CANL through a 60 Ω termination network. Tolerates ±58 V bus fault voltage.
8 STB input Standby mode control input with integrated pull-up. High = low-power standby mode with bus wake-up support; low = normal (active) mode.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Comm/UART
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • TCAN1044DRQ1
  • TCAN1044DRQ1D
  • TCAN1044DRQ1DDF
  • TCAN1044DRQ1DRB

CAD (KiCad official)

  • Symbol: TCAN1044DRQ1
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tcan1044drq1-etched.step / tcan1044drq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tcan1044drq1.step / tcan1044drq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (43 pp, sha256 77637416f54d9655, 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