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Contents

README

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TCAN1044ADRQ1

Texas Instruments · CAN ICs · SOIC-8

TCAN1044ADRQ1 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 microcontroller. Integrated pull-up to VCC. A low logic level drives the bus to the dominant state; a high logic level (or floating) results in the recessive state.
2 GND power_in Ground reference for the device. All voltage measurements are referenced to this terminal.
3 VCC power_in 5-V supply voltage input. Recommended operating range is 4.5 V to 5.5 V. Undervoltage detection nominal 4.2 V rising / 4 V falling.
4 RXD output CAN receive data output to the microcontroller. Tri-stated when device is powered off. Drive strength ±2 mA (devices without VIO).
5 NC unconnected Not internally connected on the TCAN1044A-Q1 (this MPN, non-'V' suffix). Leave floating or tie to any convenient net.
6 CANL bidirectional Low-level CAN bus input/output line. Driven low in the dominant state; biased to approximately VCC/2 in the recessive state. Bus fault protection to ±58 V.
7 CANH bidirectional High-level CAN bus input/output line. Driven high in the dominant state; biased to approximately VCC/2 in the recessive state. Bus fault protection to ±58 V.
8 STB input Standby mode control input. Integrated pull-up. Low = Normal mode (transceiver active); High = Low-power Standby mode with remote wake capability per ISO 11898-2:2016 WUP.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TCAN1044ADRQ1
  • TCAN1044ADRQ1DDFR
  • TCAN1044ADRQ1DDFRQ1
  • TCAN1044ADRQ1DRBR
  • TCAN1044ADRQ1DRBRQ1

CAD (KiCad official)

  • Symbol: TCAN1044ADRQ1
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tcan1044adrq1-etched.step / tcan1044adrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tcan1044adrq1.step / tcan1044adrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (41 pp, sha256 556a4b8df4de4965, 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