component

CTM1051AT

Public Made by Adom

by adom

VISOM CAN Bus Modules, DIP-7. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentiot-communication modulesctm1051at
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Contents

README

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CTM1051AT

VISOM · CAN Bus Modules · DIP-7

CTM1051AT from VISOM, in a DIP-7. 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 VCC power_in Positive power supply input. For CTM1051AT, 3.3 V nominal (3.15 to 3.45 V). Recommend a 10 uF bulk decoupling capacitor (C1) to GND.
2 GND power_in Logic-side (controller-side) power ground return. Isolated from the CAN-side ground (CANG) by 2.5 kVDC.
3 TXD input Transmit-data input from the host CAN controller. Standard UART-level input matched to the VCC rail (3.3 V logic for CTM1051AT). VIH >= 0.7VCC, VIL <= 0.3VCC. Drive current typ. 2 mA. Dominant timeout Tto(dom)TXD typ. 1 ms.
4 RXD output Receive-data output to the host CAN controller. Standard UART-level output at VCC rail (3.3 V logic for CTM1051AT). VOH = VCC-0.2 V typ., VOL = 0.2 V typ. at IRXD = 4 mA; max output current 10 mA.
6 CANH bidirectional CAN bus high differential line. Dominant V(OD)CANH typ. 3.5 V, recessive V(OR)CANH typ. 2.5 V. Bus pin max withstand voltage +/-58 V, transient withstand -150/+100 V. Compliant with ISO/DIS 11898.
7 CANL bidirectional CAN bus low differential line. Dominant V(OD)CANL typ. 1.5 V, recessive V(OR)CANL typ. 2.5 V. Bus pin max withstand voltage +/-58 V, transient withstand -150/+100 V. Compliant with ISO/DIS 11898.
8 CANG power_out Isolated power-supply output ground (CAN-side reference). Provides the isolated ground for the CAN bus side; may be tied to the twisted-pair shield's inner layer for improved EMC. Leave floating if not used.

Key specifications

Parameter Value
Manufacturer VISOM
Package DIP-7
Category IoT/Communication Modules
Pins 7

Ordering variants

Same part, different packaging or reel option.

  • CTM1051AT
  • CTM1051T

CAD (KiCad official)

  • Symbol: CTM1051AT
  • Footprint: Package_DIP:DIP-8-N6_W7.62mm
  • 3D model: DIP-7 (KiCad packages3D, STEP)
  • 3D model files: ctm1051at-etched.step / ctm1051at-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ctm1051at.step / ctm1051at.glb are the bare package body.

Provenance

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

  • Datasheet: VISOM datasheet (5 pp, sha256 ff38e568cdfdaf54, 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